DSPIC33FJ32MC204-H/PT - Microchip Technology, Inc.

dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04

Operating Conditions

• 3.0V to 3.6V, -40ºC to +150ºC, DC to 20 MIPS

• 3.0V to 3.6V, -40ºC to +125ºC, DC to 40 MIPS

Clock Management

• 2% internal oscillator

• Programmable PLL and oscillator clock sources

• Fail-Safe Clock Monitor (FSCM)

• Independent Watchdog Timer

• Low-power management modes

• Fast wake-up and start-up

Core Performance

• Up to 40 MIPS 16-bit dsPIC33F CPU

• Two 40 bit wide accumulators

• Single-cycle (MAC/MPY) with dual data fetch

• Single-cycle MUL plus hardware divide

Motor Control PWM

• Up to four PWM generators with eight outputs

• Dead Time for rising and falling edges

• 25 ns PWM resolution

• PWM support for Motor Control: BLDC, PMSM, ACIM,

and SRM

• Programmable Fault inputs

• Flexible trigger for ADC conversions and configurations

Advanced Analog Features

• 10/12-bit ADC with 1.1Msps/500 ksps conversion rate:

- Up to nine ADC input channels and four S&H

- Flexible/Independent trigger sources

• 150 ns Comparators:

- Up to two Analog Comparator modules

- 4-bit DAC with two ranges for Analog Comparators

Input/Output

• Software remappable pin functions

• 5V-tolerant pins

• Selectable open drain and internal pull-ups

• Up to 5 mA overvoltage clamp current/pin

• Multiple external interrupts

System Peripherals

• Cyclic Redundancy Check (CRC) module

• 16-bit dual channel 100 ksps Audio DAC

• Up to five 16-bit and up to two 32-bit Timers/Counters

• Up to four Input Capture (IC) modules

• Up to four Output Compare (OC) modules

• Up to two Quadrature Encoder Interface (QEI) modules

• Real-Time Clock and Calendar (RTCC) module

Communication Interfaces

• Parallel Master Port (PMP)

• Two UART modules (10 Mbps)

- Supports LIN 2.0 protocols

- RS-232, RS-485, and IrDA® support

• Two 4-wire SPI modules (15 Mbps)

• Enhanced CAN (ECAN) module (1 Mbaud) with 2.0B

support

•I

2C module (100K, 400K and 1Mbaud) with SMbus

support

Direct Memory Access (DMA)

• 8-channel hardware DMA with no CPU stalls or

overhead

• UART, SPI, ADC, ECAN, IC, OC, INT0

Qualification and Class B Support

• AEC-Q100 REVG (Grade 0 -40ºC to +150ºC)

• Class B Safety Library, IEC 60730, VDE certified

Debugger Development Support

• In-circuit and in-application programming

• Two program breakpoints

• Trace and run-time watch

Packages

Type SPDIP (300 ml) SOIC QFN-S QFN TQFP

Pin Count 28 28 28 44 44

I/O Pins 21 21 21 35 35

Contact Lead/Pitch .100” 1.27 0.65 0.65 0.80

Dimensions .285x.135x1.365” 7.50x2.05x17.9 6x6x0.9 8x8x0.9 10x10x1

Note: All dimensions are in millimeters (mm) unless specified.

16-bit Digital Signal Controllers (up to 128 KB Flash and 16K

SRAM) with Motor Control PWM and Advanced Analog

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 AND

dsPIC33FJ128MCX02/X04 PRODUCT

FAMILIES

The device names, pin counts, memory sizes, and

peripheral availability of each device are listed in

Table 1. The pages that follow show their pinout

diagrams.

TABLE 1: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

CONTROLLER FAMILIES

Device

Pins

Program Flash Memory

(Kbyte)

RAM (Kbyte)(1)

Remappable Peripheral

RTCC

I2C™

CRC Generator

10-bit/12-bit ADC

(Channels)

6-pin 16-bit DAC

Analog Comparator

(2 Channels/Voltage Regulator)

I/O Pins

Packages

Remappable Pins

16-bit Timer(2)

Input Capture

Output Compare

Standard PWM

Motor Control PWM

(Channels)(3)

Quadrature Encoder

Interface

UART

SPI

ECAN™

External Interrupts(4)

8-bit Parallel Master

Port (Address Lines)

dsPIC33FJ128MC804 44 128 16 26 5 4 4 6, 2 2 2 2 1 311 1 9 1 1/1 11 35 QFN

TQFP

dsPIC33FJ128MC802 28 128 16 16 5 4 4 6, 2 2 2 2 1 3 1 1 1 6 0 1/0 2 21 SPDIP

SOIC

QFN-S

dsPIC33FJ128MC204 44 128 8 26 5 4 4 6, 2 2 2 2 0 3 1 1 1 9 0 1/1 11 35 QFN

TQFP

dsPIC33FJ128MC202 28 128 8 16 5 4 4 6, 2 2 2 2 0 3 1 1 1 6 0 1/0 2 21 SPDIP

SOIC

QFN-S

dsPIC33FJ64MC804 44 64 16 26 5 4 4 6, 2 2 2 2 1 3 1 1 1 9 1 1/1 11 35 QFN

TQFP

dsPIC33FJ64MC802 28 64 16 16 5 4 4 6, 2 2 2 2 1 3 1 1 1 6 0 1/0 2 21 SPDIP

SOIC

QFN-S

dsPIC33FJ64MC204 44 64 8 26 5 4 4 6, 2 2 2 2 0 3 1 1 1 9 0 1/1 11 35 QFN

TQFP

dsPIC33FJ64MC202 28 64 8 16 5 4 4 6, 2 2 2 2 0 3 1 1 1 6 0 1/0 2 21 SPDIP

SOIC

QFN-S

dsPIC33FJ32MC304 44 32 4 26 5 4 4 6, 2 2 2 2 0 3 1 1 1 9 0 1/1 11 35 QFN

TQFP

dsPIC33FJ32MC302 28 32 4 16 5 4 4 6, 2 2 2 2 0 3 1 1 1 6 0 1/0 2 21 SPDIP

SOIC

QFN-S

Note 1: RAM size is inclusive of 2 Kbytes of DMA RAM for all devices except dsPIC33FJ32MC302/304, which include 1 Kbyte of DMA RAM.

2: Only four out of five timers are remappable.

3: Only PWM fault pins are remappable.

4: Only two out of three interrupts are remappable.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Pin Diagrams

dsPIC33FJ32MC302

28-Pin SPDIP, SOIC

AVDD

AVSS

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

VSS

VCAP

INT0/RP7(1)/CN23/PMD5/RB7

TDO/PWM2L1/SDA1/RP9(1)/CN21/PMD3/RB9

TCK/PWM2H1/SCL1/RP8(1)/CN22/PMD4/RB8

PWM1L1/RP15(1)/CN11/PMCS1/RB15

PWM1H1/RTCC/RP14(1)/CN12/PMWR/RB14

PWM1L2/RP13(1)/CN13/PMRD/RB13

PWM1H2/RP12(1)/CN14/PMD0/RB12

PGED2/TDI/PWM1H3/RP10(1)/CN16/PMD2/RB10

PGEC2/TMS/PWM1L3/RP11(1)/CN15/PMD1/RB11

MCLR

VSS

VDD

AN0/VREF+/CN2/RA0

AN1/VREF-/CN3/RA1

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

SOSCO/T1CK/CN0/PMA1/RA4

SOSCI/RP4(1)/CN1/PMBE/RB4

OSC2/CLKO/CN29/PMA0/RA3

OSC1/CLKI/CN30/RA2

AN5/C1IN+/RP3(1)/CN7/RB3

AN4/C1IN-/RP2(1)/CN6/RB2

PGEC1/ AN3/C2IN+/RP1(1)/CN5/RB1

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

dsPIC33FJ64MC202

dsPIC33FJ64MC802

dsPIC33FJ128MC202

dsPIC33FJ128MC802

28-Pin QFN-S(2)

dsPIC33FJ128MC202

MCLR

VSS

VDD

AN0/VREF+/CN2/RA0

AN1/VREF-/CN3/RA1

AVDD

AVSS

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

SOSCO/T1CK/CN0/PMA1/RA4

SOSCI/RP4(1)/CN1/PMBE/RB4

VSS

OSC2/CLKO/CN29/PMA0/RA3

OSC1/CLKI/CN30/RA2

VCAP

INT0/RP7(1)/CN23/PMD5/RB7

TDO/PWM2L1/SDA1/RP9(1)/CN21/PMD3/RB9

TCK/PWM2H1/SCL1/RP8(1)/CN22/PMD4/RB8

AN5/C1IN+/RP3(1)/CN7/RB3

AN4/C1IN-/RP2(1)/CN6/RB2

PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1

PWM1L1/RP15(1)/CN11/PMCS1/RB15

PWM1H1/RTCC/RP14(1)/CN12/PMWR/RB14

PWM1L2/RP13(1)/CN13/PMRD/RB13

PWM1H2/RP12(1)/CN14/PMD0/RB12

PGED2/TDI/PWM1H3/RP10(1)/CN16/PMD2/RB10

PGEC2/TMS/PWM1L3/RP11(1)/CN15/PMD1/RB11

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

dsPIC33FJ64MC202

dsPIC33FJ64MC802

dsPIC33FJ128MC802

dsPIC33FJ32MC302

Note 1: The RPx pins can be used by any remappable peripheral. See Table 1 in this section for the list of available peripherals.

2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.

= Pins are up to 5V tolerant

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Pin Diagrams (Continued)

44-Pin QFN(2)

dsPIC33FJ64MC804

232

34 PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

AN1/VREF-/CN3/RA1

AN0/VREF+/CN2/RA0

MCLR

TMS/PMA10/RA10

AVDD

AVSS

PWM1L1/DAC1LN/RP15(1)/CN11/PMCS1/RB15

PWM1H1/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14

TCK/PMA7/RA7

SCL1/RP8(1)/CN22/PMD4/RB8

INT0/RP7(1)/CN23/PMD5/RB7

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

VDD

TDI/PMA9/RA9

SOSCO/T1CK/CN0/RA4

VSS

RP21(1)/CN26/PMA3/RC5

RP20(1)/CN25/PMA4/RC4

RP19(1)/CN28/PMBE/RC3

PWM1H2/DAC1RP/RP12(1)/CN14/PMD0/RB12

PGEC2/PWM1L3/RP11(1)/CN15/PMD1/RB11

PGED2/PWM1H3/RP10(1)/CN16/PMD2/RB10

VCAP

VSS

RP25(1)/CN19/PMA6/RC9

RP24(1)/CN20/PMA5/RC8

PWM2L1/RP23(1)/CN17/PMA0/RC7

PWM2H1/RP22(1)/CN18/PMA1/RC6

SDA1/RP9(1)/CN21/PMD3/RB9

PWM1L2/DAC1RN/RP13(1)/CN13/PMRD/RB13

AN4/C1IN-/RP2(1)/CN6/RB2

AN5/C1IN+/RP3(1)/CN7/RB3

AN6/DAC1RM/RP16(1)/CN8/RC0

AN7/DAC1LM/RP17(1)/CN9/RC1

AN8/CVREF/RP18(1)/PMA2/CN10/RC2

SOSCI/RP4(1)/CN1/RB4

VDD

VSS

OSC1/CLKI/CN30/RA2

OSC2/CLKO/CN29/RA3

TDO/PMA8/RA8

dsPIC33FJ128MC804

Note 1: The RPx pins can be used by any remappable peripheral. See Table 1 in this section for the list of available peripherals.

2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.

= Pins are up to 5V tolerant

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Pin Diagrams (Continued)

44-Pin QFN(2)

dsPIC33FJ64MC204

232

34 PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

AN1/VREF-/CN3/RA1

AN0/VREF+/CN2/RA0

MCLR

TMS/PMA10/RA10

AVDD

AVSS

PWM1L1/RP15(1)/CN11/PMCS1/RB15

PWM1H1/RTCC/RP14(1)/CN12/PMWR/RB14

TCK/PMA7/RA7

SCL1/RP8(1)/CN22/PMD4/RB8

INT0/RP7(1)/CN23/PMD5/RB7

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

VDD

TDI/PMA9/RA9

SOSCO/T1CK/CN0/RA4

VSS

RP21(1)/CN26/PMA3/RC5

RP20(1)/CN25/PMA4/RC4

RP19(1)/CN28/PMBE/RC3

PWM1H2/RP12(1)/CN14/PMD0/RB12

PGEC2/PWM1L3/RP11(1)/CN15/PMD1/RB11

PGED2/PWM1H3/RP10(1)/CN16/PMD2/RB10

VCAP

VSS

RP25(1)/CN19/PMA6/RC9

RP24(1)/CN20/PMA5/RC8

PWM2L1/RP23(1)/CN17/PMA0/RC7

PWM2H1/RP2(1)2/CN18/PMA1/RC6

SDA1/RP9(1)/CN21/PMD3/RB9

PWM1L2/RP13(1)/CN13/PMRD/RB13

AN4/C1IN-/RP2(1)/CN6/RB2

AN5/C1IN+/RP3(1)/CN7/RB3

AN6/RP16(1)/CN8/RC0

AN7/RP17(1)/CN9/RC1

AN8/CVREF/RP18(1)/PMA2/CN10/RC2

SOSCI/RP4(1)/CN1/RB4

VDD

VSS

OSC1/CLKI/CN30/RA2

OSC2/CLKO/CN29/RA3

TDO/PMA8/RA8

dsPIC33FJ32MC304

dsPIC33FJ128MC204

Note 1: The RPx pins can be used by any remappable peripheral. See Table 1 in this section for the list of available peripherals.

2: The metal plane at the bottom of the device is not connected to any pins and is recommended to be connected to VSS externally.

= Pins are up to 5V tolerant

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Pin Diagrams (Continued)

44-Pin TQFP

SCL1/RP8(1)/CN22/PMD4/RB8

INT0/RP7(1)/CN23/PMD5/RB7

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

VDD

TDI/PMA9/RA9

SOSCO/T1CK/CN0/RA4

VSS

RP21(1)/CN26/PMA3/RC5

RP20(1)/CN25/PMA4/RC4

RP19(1)/CN28/PMBE/RC3

PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

AN1/VREF-/CN3/RA1

AN0/VREF+/CN2/RA0

MCLR

TMS/PMA10/RA10

AVDD

AVSS

PWM1L1/DAC1LN/RP15(1)/CN11/PMCS1/RB15

PWM1H1/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14

PWM1H2/DAC1RP/RP12(1)/CN14/PMD0/RB12

PGEC2/PWM1L3/RP11(1)/CN15/PMD1/RB11

PGED2/EMCD2/PWM1H3/RP10(1)/CN16/PMD2/RB10

VCAP

VSS

RP25(1)/CN19/PMA6/RC9

RP24(1)/CN20/PMA5/RC8

PWM2L1/RP23(1)/CN17/PMA0/RC7

PWM2H1/RP22(1)/CN18/PMA1/RC6

SDA1/RP9(1)/CN21/PMD3/RB9

AN4/C1IN-/RP2(1)/CN6/RB2

AN5/C1IN+/RP3(1)/CN7/RB3

AN6/DAC1RM/RP16(1)/CN8/RC0

AN7/DAC1LM/RP17(1)/CN9/RC1

AN8/CVREF/RP18(1)/PMA2/CN10/RC2

SOSCI/RP4(1)/CN1/RB4

VDD

VSS

OSC1/CLKI/CN30/RA2

OSC2/CLKO/CN29/RA3

TDO/PMA8/RA8

PWM1L2/DAC1RN/RP13(1)/CN13/PMRD/RB13

TCK/PMA7/RA7

dsPIC33FJ64MC804

dsPIC33FJ128MC804

Note 1: The RPx pins can be used by any remappable peripheral. See Tab le 1 in this section for the list of available peripherals.

= Pins are up to 5V tolerant

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Pin Diagrams (Continued)

44-Pin TQFP

SCL1/RP8(1)/CN22/PMD4/RB8

INT0/RP7(1)/CN23/PMD5/RB7

PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6

PGED3/ASDA1/RP5(1)/CN27/PMD7/RB5

VDD

TDI/PMA9/RA9

SOSCO/T1CK/CN0/RA4

VSS

RP21(1)/CN26/PMA3/RC5

RP20(1)/CN25/PMA4/RC4

RP19(1)/CN28/PMBE/RC3

PGEC1/AN3/C2IN+/RP1(1)/CN5/RB1

PGED1/AN2/C2IN-/RP0(1)/CN4/RB0

AN1/VREF-/CN3/RA1

AN0/VREF+/CN2/RA0

MCLR

TMS/PMA10/RA10

AVDD

AVSS

PWM1L1/RP15(1)/CN11/PMCS1/RB15

PWM1H1/RTCC/RP14(1)/CN12/PMWR/RB14

PWM1H2/RP12(1)/CN14/PMD0/RB12

PGEC2/PWM1L3/RP11(1)/CN15/PMD1/RB11

PGED2/EMCD2/PWM1H3/RP10(1)/CN16/PMD2/RB10

VCAP

VSS

RP25(1)/CN19/PMA6/RC9

RP24(1)/CN20/PMA5/RC8

PWM2L1/RP23(1)/CN17/PMA0/RC7

PWM2H1/RP22(1)/CN18/PMA1/RC6

SDA1/RP9(1)/CN21/PMD3/RB9

AN4/C1IN-/RP2(1)/CN6/RB2

AN5/C1IN+/RP3(1)/CN7/RB3

AN6/RP16(1)/CN8/RC0

AN7/RP17(1)/CN9/RC1

AN8/CVREF/RP18/PMA2/CN10/RC2

SOSCI/RP4(1)/CN1/RB4

VDD

VSS

OSC1/CLKI/CN30/RA2

OSC2/CLKO/CN29/RA3

TDO/PMA8/RA8

PWM1L2/RP13(1)/CN13/PMRD/RB13

TCK/PMA7/RA7

dsPIC33FJ32MC304

dsPIC33FJ64MC204

dsPIC33FJ128MC204

Note 1: The RPx pins can be used by any remappable peripheral. See Tab le 1 in this section for the list of available peripherals.

= Pins are up to 5V tolerant

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Table of Contents

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/X04 Product Families............................................. 2

1.0 Device Overview ........................................................................................................................................................................ 11

2.0 Guidelines for Getting Started with 16-bit Digital Signal Controllers .......................................................................................... 17

3.0 CPU ............................................................................................................................................................................................ 21

4.0 Memory Organization ................................................................................................................................................................. 35

5.0 Flash Program Memory .............................................................................................................................................................. 73

6.0 Resets ....................................................................................................................................................................................... 79

7.0 Interrupt Controller ..................................................................................................................................................................... 89

8.0 Direct Memory Access (DMA) .................................................................................................................................................. 131

9.0 Oscillator Configuration ............................................................................................................................................................ 143

10.0 Power-Saving Features............................................................................................................................................................ 155

11.0 I/O Ports ................................................................................................................................................................................... 163

12.0 Timer1 ...................................................................................................................................................................................... 195

13.0 Timer2/3 And TImer4/5 ........................................................................................................................................................... 199

14.0 Input Capture............................................................................................................................................................................ 205

15.0 Output Compare....................................................................................................................................................................... 209

16.0 Motor Control PWM Module ..................................................................................................................................................... 213

17.0 Quadrature Encoder Interface (QEI) Module ........................................................................................................................... 227

18.0 Serial Peripheral Interface (SPI)............................................................................................................................................... 233

19.0 Inter-Integrated Circuit™ (I2C™) .............................................................................................................................................. 239

20.0 Universal Asynchronous Receiver Transmitter (UART) ........................................................................................................... 247

21.0 Enhanced CAN (ECAN™) Module........................................................................................................................................... 253

22.0 10-bit/12-bit Analog-to-Digital Converter (ADC1) ..................................................................................................................... 281

23.0 Audio Digital-to-Analog Converter (DAC) ................................................................................................................................. 297

24.0 Comparator Module.................................................................................................................................................................. 303

25.0 Real-Time Clock and Calendar (RTCC) .................................................................................................................................. 309

26.0 Programmable Cyclic Redundancy Check (CRC) Generator .................................................................................................. 321

27.0 Parallel Master Port (PMP)....................................................................................................................................................... 327

28.0 Special Features ...................................................................................................................................................................... 335

29.0 Instruction Set Summary .......................................................................................................................................................... 345

30.0 Development Support............................................................................................................................................................... 353

31.0 Electrical Characteristics .......................................................................................................................................................... 357

32.0 High Temperature Electrical Characteristics ............................................................................................................................ 413

32.0 DC and AC Device Characteristics Graphs.............................................................................................................................. 425

33.0 Packaging Information.............................................................................................................................................................. 429

Appendix A: Revision History............................................................................................................................................................. 439

Index ................................................................................................................................................................................................. 449

The Microchip Web Site ..................................................................................................................................................................... 455

Customer Change Notification Service .............................................................................................................................................. 455

Customer Support .............................................................................................................................................................................. 455

Reader Response .............................................................................................................................................................................. 456

Product Identification System............................................................................................................................................................. 457

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

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http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.

The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current

devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision

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To determine if an errata sheet exists for a particular device, please check with one of the following:

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When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are

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Customer Notification System

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Referenced Sources

This device data sheet is based on the following

individual chapters of the “dsPIC33F/PIC24H Family

Reference Manual”. These documents should be

considered as the general reference for the operation

of a particular module or device feature.

•Section 1. “Introduction” (DS70197)

•Section 2. “CPU” (DS70204)

•Section 3. “Data Memory” (DS70202)

•Section 4. “Program Memory” (DS70202)

•Section 5. “Flash Programming” (DS70191)

•Section 8. “Reset” (DS70192)

•Section 9. “Watchdog Timer and Power-saving Modes” (DS70196)

•Section 11. “Timers” (DS70205)

•Section 12. “Input Capture” (DS70198)

•Section 13. “Output Compare” (DS70209)

•Section 14. “Motor Control PWM” (DS70187)

•Section 15. “Quadrature Encoder Interface (QEI)” (DS70208)

•Section 16. “Analog-to-Digital Converter (ADC)” (DS70183)

•Section 17. “UART” (DS70188)

•Section 18. “Serial Peripheral Interface (SPI)” (DS70206)

•Section 19. “Inter-Integrated Circuit™ (I2C™)” (DS70195)

•Section 20. “Data Converter Interface (DCI)” (DS70288)

•Section 23. “CodeGuard™ Security” (DS70199)

•Section 24. “Programming and Diagnostics” (DS70207)

•Section 25. “Device Configuration” (DS70194)

•Section 30. “I/O Ports with Peripheral Pin Select (PPS)” (DS70190)

•Section 32. “Interrupts (Part III)” (DS70214)

•Section 33. “Audio Digital-to-Analog Converter (DAC)” (DS70211)

•Section 34. “Comparator” (DS70212)

•Section 35. “Parallel Master Port (PMP)” (DS70299)

•Section 36. “Programmable Cyclic Redundancy Check (CRC)” (DS70298)

•Section 37. “Real-Time Clock and Calendar (RTCC)” (DS70301)

•Section 38. “Direct Memory Access” (DS70215)

•Section 39. “Oscillator (Part III)” (DS70216)

Note 1: To access the documents listed below,

browse to the documentation section of

the dsPIC33FJ64MC804 product page of

the Microchip web site

(www.microchip.com) or select a family

reference manual section from the

following list.

In addition to parameters, features, and

other documentation, the resulting page

provides links to the related family

reference manual sections.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

1.0 DEVICE OVERVIEW This document contains device specific information for

the dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 Digital Signal

Controller (DSC) devices. The dsPIC33F devices

contain extensive Digital Signal Processor (DSP)

functionality with a high performance 16-bit

Microcontroller (MCU) architecture.

Figure 1-1 shows a general block diagram of the

core and peripheral modules in the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 families of devices.

Table 1-1 lists the functions of the various pins

shown in the pinout diagrams.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. However, it is not intended to be

a comprehensive reference source. To

complement the information in this data

sheet, refer to the “dsPIC33F/PIC24H

Family Reference Manual”. Please see

the Microchip web site

(www.microchip.com) for the latest

dsPIC33F/PIC24H Family Reference

Manual sections.

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 1-1: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/

X04 BLOCK DIAGRAM

OSC1/CLKI

OSC2/CLKO

VDD, VSS

Timing

Generation

MCLR

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Brown-out

Reset

Precision

Reference

Band Gap

FRC/LPRC

Oscillators

Regulator

Voltage

VCAP

IC1, 2, 7, 8 I2C1

PORTA

Note: Not all pins or features are implemented on all device pinout configurations. See “Pin Diagrams” for the specific pins and features

present on each device.

Instruction

Decode and

Control

PCH PCL

Program Counter

16-bit ALU

Instruction Reg

PCU

16 x 16

W Register Array

ROM Latch

EA MUX

Interrupt

Controller

PSV and Table

Data Access

Control Block

Stack

Control

Logic

Loop

Control

Logic

Data Latch

Address

Latch

Address Latch

Program Memory

Data Latch

Literal Data

16 16

Data Latch

Address

Latch

X RAM Y RAM

Y Data Bus

X Data Bus

DSP Engine

Divide Support

Control Signals

to Various Blocks

ADC1

Timers

PORTB

Address Generator Units

1-5

CNx

UART1, 2 OC/

PWM1-4

QEI1, 2

PWM

2 Ch

PWM

6 Ch

Remappable

Pins

DMA

RAM

DMA

Controller PORTC

SPI1, 2

ECAN1

DAC1

Comparator

2 Ch.

RTCC

PMP/

EPSP

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 1-1: PINOUT I/O DESCRIPTIONS

Pin Name Pin

Type

Buffer

Type PPS Description

AN0-AN8 I Analog No Analog input channels.

CLKI

CLKO

ST/CMOS

—

External clock source input. Always associated with OSC1 pin function.

Oscillator crystal output. Connects to crystal or resonator in Crystal

Oscillator mode. Optionally, functions as CLKO in RC and EC modes.

Always associated with OSC2 pin function.

OSC1

OSC2

I/O

ST/CMOS

—

Oscillator crystal input. ST buffer when configured in RC mode; CMOS

otherwise.

Oscillator crystal output. Connects to crystal or resonator in Crystal

Oscillator mode. Optionally functions as CLKO in RC and EC modes.

SOSCI

SOSCO

ST/CMOS

—

32.768 kHz low-power oscillator crystal input; CMOS otherwise.

32.768 kHz low-power oscillator crystal output.

CN0-CN30 I ST No Change notification inputs. Can be software programmed for internal

weak pull-ups on all inputs.

IC1-IC2

IC7-IC8

Yes

Capture inputs 1/2.

Capture inputs 7/8.

OCFA

OC1-OC4

—

Yes

Compare Fault A input (for Compare Channels 1, 2, 3 and 4).

Compare outputs 1 through 4.

INT0

INT1

INT2

Yes

External interrupt 0.

External interrupt 1.

External interrupt 2.

RA0-RA4

RA7-RA10

I/O

PORTA is a bidirectional I/O port.

RB0-RB15 I/O ST No PORTB is a bidirectional I/O port.

RC0-RC9 I/O ST No PORTC is a bidirectional I/O port.

T1CK

T2CK

T3CK

T4CK

T5CK

Yes

Timer1 external clock input.

Timer2 external clock input.

Timer3 external clock input.

Timer4 external clock input.

Timer5 external clock input.

U1CTS

U1RTS

U1RX

U1TX

—

Yes

UART1 clear to send.

UART1 ready to send.

UART1 receive.

UART1 transmit.

U2CTS

U2RTS

U2RX

U2TX

—

Yes

UART2 clear to send.

UART2 ready to send.

UART2 receive.

UART2 transmit.

SCK1

SDI1

SDO1

SS1

I/O

—

Yes

Synchronous serial clock input/output for SPI1.

SPI1 data in.

SPI1 data out.

SPI1 slave synchronization or frame pulse I/O.

SCK2

SDI2

SDO2

SS2

I/O

—

Yes

Synchronous serial clock input/output for SPI2.

SPI2 data in.

SPI2 data out.

SPI2 slave synchronization or frame pulse I/O.

SCL1

SDA1

ASCL1

ASDA1

I/O

Synchronous serial clock input/output for I2C1.

Synchronous serial data input/output for I2C1.

Alternate synchronous serial clock input/output for I2C1.

Alternate synchronous serial data input/output for I2C1.

Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power

ST = Schmitt Trigger input with CMOS levels O = Output I = Input

PPS = Peripheral Pin Select TTL = TTL input buffer

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TMS

TCK

TDI

TDO

—

JTAG Test mode select pin.

JTAG test clock input pin.

JTAG test data input pin.

JTAG test data output pin.

INDX1

QEA1

QEB1

UPDN1

CMOS

Yes

Quadrature Encoder Index1 Pulse input.

Quadrature Encoder Phase A input in QEI1 mode. Auxiliary Timer

External Clock/Gate input in Timer mode.

Quadrature Encoder Phase A input in QEI1 mode. Auxiliary Timer

External Clock/Gate input in Timer mode.

Position Up/Down Counter Direction State.

INDX2

QEA2

QEB2

UPDN2

CMOS

Yes

Quadrature Encoder Index2 Pulse input.

Quadrature Encoder Phase A input in QEI2 mode. Auxiliary Timer

External Clock/Gate input in Timer mode.

Quadrature Encoder Phase A input in QEI2 mode. Auxiliary Timer

External Clock/Gate input in Timer mode.

Position Up/Down Counter Direction State.

C1RX

C1TX

—

Yes

ECAN1 bus receive pin.

ECAN1 bus transmit pin.

RTCC O — No Real-Time Clock Alarm Output.

CVREF O ANA No Comparator Voltage Reference Output.

C1IN-

C1IN+

C1OUT

ANA

—

Yes

Comparator 1 Negative Input.

Comparator 1 Positive Input.

Comparator 1 Output.

C2IN-

C2IN+

C2OUT

ANA

—

Yes

Comparator 2 Negative Input.

Comparator 2 Positive Input.

Comparator 2 Output.

PMA0

PMA1

PMA2 -PMPA10

PMBE

PMCS1

PMD0-PMPD7

PMRD

PMWR

I/O

TTL/ST

—

TTL/ST

—

Parallel Master Port Address Bit 0 Input (Buffered Slave modes) and

Output (Master modes).

Parallel Master Port Address Bit 1 Input (Buffered Slave modes) and

Output (Master modes).

Parallel Master Port Address (Demultiplexed Master modes).

Parallel Master Port Byte Enable Strobe.

Parallel Master Port Chip Select 1 Strobe.

Parallel Master Port Data (Demultiplexed Master mode) or Address/

Data (Multiplexed Master modes).

Parallel Master Port Read Strobe.

Parallel Master Port Write Strobe.

DAC1RN

DAC1RP

DAC1RM

—

DAC1 Negative Output.

DAC1 Positive Output.

DAC1 Output indicating middle point value (typically 1.65V).

DAC2RN

DAC2RP

DAC2RM

—

DAC2 Negative Output.

DAC2 Positive Output.

DAC2 Output indicating middle point value (typically 1.65V).

TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Name Pin

Type

Buffer

Type PPS Description

Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power

ST = Schmitt Trigger input with CMOS levels O = Output I = Input

PPS = Peripheral Pin Select TTL = TTL input buffer

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FLTA1

PWM1L1

PWM1H1

PWM1L2

PWM1H2

PWM1L3

PWM1H3

FLTA2

PWM2L1

PWM2H1

—

Yes

PWM1 Fault A input.

PWM1 Low output 1

PWM1 High output 1

PWM1 Low output 2

PWM1 High output 2

PWM1 Low output 3

PWM1 High output 3

PWM2 Fault A input.

PWM2 Low output 1

PWM2 High output 1

PGED1

PGEC1

PGED2

PGEC2

PGED3

PGEC3

I/O

Data I/O pin for programming/debugging communication channel 1.

Clock input pin for programming/debugging communication channel 1.

Data I/O pin for programming/debugging communication channel 2.

Clock input pin for programming/debugging communication channel 2.

Data I/O pin for programming/debugging communication channel 3.

Clock input pin for programming/debugging communication channel 3.

MCLR I/P ST No Master Clear (Reset) input. This pin is an active-low Reset to the

device.

AVDD P P No Positive supply for analog modules. This pin must be connected at all

times.

AVSS P P No Ground reference for analog modules.

VDD P — No Positive supply for peripheral logic and I/O pins.

VCAP P — No CPU logic filter capacitor connection.

VSS P — No Ground reference for logic and I/O pins.

VREF+ I Analog No Analog voltage reference (high) input.

VREF- I Analog No Analog voltage reference (low) input.

TABLE 1-1: PINOUT I/O DESCRIPTIONS (CONTINUED)

Pin Name Pin

Type

Buffer

Type PPS Description

Legend: CMOS = CMOS compatible input or output Analog = Analog input P = Power

ST = Schmitt Trigger input with CMOS levels O = Output I = Input

PPS = Peripheral Pin Select TTL = TTL input buffer

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

2.0 GUIDELINES FOR GETTING

STARTED WITH 16-BIT

DIGITAL SIGNAL

CONTROLLERS

2.1 Basic Connection Requirements

Getting started with the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 family of 16-bit Digital Signal Controllers (DSC)

requires attention to a minimal set of device pin

connections before proceeding with development. The

following is a list of pin names, which must always be

connected:

• All VDD and VSS pins

(see Section 2.2 “Decoupling Capacitors”)

• All AVDD and AVSS pins (regardless if ADC module

is not used)

(see Section 2.2 “Decoupling Capacitors”)

•V

CAP

(see Section 2.3 “CPU Logic Filter Capacitor

Connection (VCAP)”)

•MCLR

(see Section 2.4 “Master Clear (MCLR) Pin”)

• PGECx/PGEDx pins used for In-Circuit Serial

Programming™ (ICSP™) and debugging purposes

(see Section 2.5 “ICSP Pins”)

• OSC1 and OSC2 pins when external oscillator

source is used

(see Section 2.6 “External Oscillator Pins”)

Additionally, the following pins may be required:

•V

REF+/VREF- pins used when external voltage

reference for ADC module is implemented

2.2 Decoupling Capacitors

The use of decoupling capacitors on every pair of

power supply pins, such as VDD, VSS, AVDD and

AVSS is required.

Consider the following criteria when using decoupling

capacitors:

•Value and type of capacitor: Recommendation

of 0.1 µF (100 nF), 10-20V. This capacitor should

be a low-ESR and have resonance frequency in

the range of 20 MHz and higher. It is

recommended that ceramic capacitors be used.

•Placement on the printed circuit board: The

decoupling capacitors should be placed as close

to the pins as possible. It is recommended to

place the capacitors on the same side of the

board as the device. If space is constricted, the

capacitor can be placed on another layer on the

PCB using a via; however, ensure that the trace

length from the pin to the capacitor is within

one-quarter inch (6 mm) in length.

•Handling high frequency noise: If the board is

experiencing high frequency noise, upward of

tens of MHz, add a second ceramic-type capacitor

in parallel to the above described decoupling

capacitor. The value of the second capacitor can

be in the range of 0.01 µF to 0.001 µF. Place this

second capacitor next to the primary decoupling

capacitor. In high-speed circuit designs, consider

implementing a decade pair of capacitances as

close to the power and ground pins as possible.

For example, 0.1 µF in parallel with 0.001 µF.

•Maximizing performance: On the board layout

from the power supply circuit, run the power and

return traces to the decoupling capacitors first,

and then to the device pins. This ensures that the

decoupling capacitors are first in the power chain.

Equally important is to keep the trace length

between the capacitor and the power pins to a

minimum thereby reducing PCB track inductance.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to the “dsPIC33F/PIC24H

Family Reference Manual”. Please see

the Microchip web site

(www.microchip.com) for the latest

dsPIC33F/PIC24H Family Reference

Manual sections.

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: The AVDD and AVSS pins must be

connected independent of the ADC

voltage reference source.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 2-1: RECOMMENDED

MINIMUM CONNECTION

2.2.1 TANK CAPACITORS

On boards with power traces running longer than six

inches in length, it is suggested to use a tank capacitor

for integrated circuits including DSCs to supply a local

power source. The value of the tank capacitor should

be determined based on the trace resistance that

connects the power supply source to the device, and

the maximum current drawn by the device in the

application. In other words, select the tank capacitor so

that it meets the acceptable voltage sag at the device.

Typical values range from 4.7 µF to 47 µF.

2.3 CPU Logic Filter Capacitor

Connection (VCAP)

A low-ESR (< 5 Ohms) capacitor is required on the

VCAP pin, which is used to stabilize the voltage

regulator output voltage. The VCAP pin must not be

connected to VDD, and must have a capacitor between

4.7 µF and 10 µF, preferably surface mount connected

within one-eights inch of the VCAP pin connected to

ground. The type can be ceramic or tantalum. Refer to

Section 31.0 “Electrical Characteristics” for

additional information.

The placement of this capacitor should be close to the

VCAP. It is recommended that the trace length not

exceed one-quarter inch (6 mm). Refer to Section 28.2

“On-Chip Voltage Regulator” for details.

2.4 Master Clear (MCLR) Pin

The MCLR pin provides for two specific device

functions:

• Device Reset

• Device programming and debugging

During device programming and debugging, the

resistance and capacitance that can be added to the

pin must be considered. Device programmers and

debuggers drive the MCLR pin. Consequently,

specific voltage levels (VIH and VIL) and fast signal

transitions must not be adversely affected. Therefore,

specific values of R and C will need to be adjusted

based on the application and PCB requirements.

For example, as shown in Figure 2-2, it is

recommended that the capacitor C be isolated from the

MCLR pin during programming and debugging

operations.

Place the components shown in Figure 2-2 within

one-quarter inch (6 mm) from the MCLR pin.

FIGURE 2-2: EXAMPLE OF MCLR PIN

CONNECTIONS

dsPIC33F

VDD

VSS

VDD

VSS

VDD

AVDD

AVSS

VDD

VSS

0.1 µF

Ceramic

0.1 µF

Ceramic

0.1 µF

Ceramic

0.1 µF

Ceramic

VDD

MCLR

0.1 µF

Ceramic

VCAP

L1(1)

10 µF

Tantalum

Note 1: As an option, instead of a hard-wired connection, an

inductor (L1) can be substituted between VDD and

AVDD to improve ADC noise rejection. The inductor

impedance should be less than 1Ω and the inductor

capacity greater than 10 mA.

Where:

fFCNV

--------------=

2πLC()

-----------------------=

2πfC()

---------------------

⎝⎠

⎛⎞

(i.e., ADC conversion rate/2)

Note 1: R ≤ 10 kΩ is recommended. A suggested

starting value is 10 kΩ. Ensure that the MCLR

pin VIH and VIL specifications are met.

2: R1 ≤ 470Ω will limit any current flowing into

MCLR from the external capacitor C, in the

event of MCLR pin breakdown due to

Electrostatic Discharge (ESD) or Electrical

Overstress (EOS). Ensure that the MCLR pin

VIH and VIL specifications are met.

R1(2)

R(1)

VDD

MCLR

dsPIC33F

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

2.5 ICSP Pins

The PGECx and PGEDx pins are used for In-Circuit

Serial Programming™ (ICSP™) and debugging

purposes. It is recommended to keep the trace length

between the ICSP connector and the ICSP pins on the

device as short as possible. If the ICSP connector is

expected to experience an ESD event, a series resistor

is recommended with a value in the range of a few tens

of Ohms, not to exceed 100 Ohms.

Pull-up resistors, series diodes, and capacitors on the

PGECx and PGEDx pins are not recommended as they

will interfere with the programmer/debugger

communications to the device. If such discrete

components are an application requirement, they

should be removed from the circuit during

programming and debugging. Alternatively, refer to the

AC/DC characteristics and timing requirements

information in the respective device Flash

programming specification for information on

capacitive loading limits and pin input voltage high (VIH)

and input low (VIL) requirements.

Ensure that the “Communication Channel Select” (i.e.,

PGECx/PGEDx pins) programmed into the device

matches the physical connections for the ICSP to

MPLAB® ICD 3 or MPLAB REAL ICE™.

For more information on ICD 3 and REAL ICE

connection requirements, refer to the following

documents that are available on the Microchip web

site.

•“Using MPLAB® ICD 3” (poster) (DS51765)

•“MPLAB® ICD 3 Design Advisory” (DS51764)

•“MPLAB® REAL ICE™ In-Circuit Emulator User’s

Guide” (DS51616)

•“Using MPLAB® REAL ICE™” (poster) (DS51749)

2.6 External Oscillator Pins

Many DSCs have options for at least two oscillators: a

high-frequency primary oscillator and a low-frequency

secondary oscillator (refer to Section 9.0 “Oscillator

Configuration” for details).

The oscillator circuit should be placed on the same

side of the board as the device. Also, place the

oscillator circuit close to the respective oscillator pins,

not exceeding one-half inch (12 mm) distance

between them. The load capacitors should be placed

next to the oscillator itself, on the same side of the

board. Use a grounded copper pour around the

oscillator circuit to isolate them from surrounding

circuits. The grounded copper pour should be routed

directly to the MCU ground. Do not run any signal

traces or power traces inside the ground pour. Also, if

using a two-sided board, avoid any traces on the

other side of the board where the crystal is placed. A

suggested layout is shown in Figure 2-3.

Recommendations for crystals and ceramic

resonators are provided in Table 2-1 and Table 2-2,

respectively.

FIGURE 2-3: SUGGESTED PLACEMENT

OF THE OSCILLATOR

CIRCUIT

TABLE 2-1: CRYSTAL RECOMMENDATIONS

Main Oscillator

Guard Ring

Guard Trace

Secondary

Oscillator

Part

Number Vendor Freq. Load

Cap.

Package

Case

Frequency

Tolerance

Mounting

Type

Operating

Temperature

ECS-40-20-4DN ECS Inc. 4 MHz 20 pF HC49/US ±30 ppm TH -40°C to +85°C

ECS-80-18-4DN ECS Inc. 8 MHz 18 pF HC49/US ±30 ppm TH -40°C to +85°C

ECS-100-18-4-DN ECS Inc. 10 MHz 18 pF HC49/US ±30 ppm TH -40°C to +85°C

ECS-200-20-4DN ECS Inc. 20 MHz 20 pF HC49/US ±30 ppm TH -40°C to +85°C

ECS-40-20-5G3XDS-TR ECS Inc. 4 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C

ECS-80-20-5G3XDS-TR ECS Inc. 8 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C

ECS-100-20-5G3XDS-TR ECS Inc. 10 MHz 20 pF HC49/US ±30 ppm SM -40°C to +125°C

ECS-200-20-5G3XDS-TR ECS Inc. 20 MHz 20 pF HC49/US ±30 ppm SM -40°C to 125°C

NX3225SA 20MHZ AT-W NDK 20 MHz 8 pF 3.2 mm x 2.5 mm ±50 ppm SM -40°C to 125°C

Legend: TH = Through Hole SM = Surface Mount

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 2-2: RESONATOR RECOMMENDATIONS

2.7 Oscillator Value Conditions on

Device Start-up

If the PLL of the target device is enabled and

configured for the device start-up oscillator, the

maximum oscillator source frequency must be limited

to less than or equal to 8 MHz for start-up with PLL

enabled to comply with device PLL start-up conditions.

This means that if the external oscillator frequency is

outside this range, the application must start-up in the

FRC mode first. The default PLL settings after a POR

with an oscillator frequency outside this range will

violate the device operating speed.

Once the device powers up, the application firmware

can initialize the PLL SFRs, CLKDIV and PLLDBF to a

suitable value, and then perform a clock switch to the

Oscillator + PLL clock source. Note that clock switching

must be enabled in the device Configuration word.

2.8 Configuration of Analog and

Digital Pins During ICSP

Operations

If MPLAB ICD 3 or REAL ICE is selected as a debug-

ger, it automatically initializes all of the analog-to-digital

input pins (ANx) as “digital” pins, by setting all bits in the

AD1PCFGL register.

The bits in this register that correspond to the

analog-to-digital pins that are initialized by MPLAB ICD

3 or REAL ICE, must not be cleared by the user

application firmware; otherwise, communication errors

will result between the debugger and the device.

If your application needs to use certain analog-to-digital

pins as analog input pins during the debug session, the

user application must clear the corresponding bits in

the AD1PCFGL register during initialization of the ADC

module.

When MPLAB ICD 3 or REAL ICE is used as a

programmer, the user application firmware must

correctly configure the AD1PCFGL register. Automatic

initialization of this register is only done during

debugger operation. Failure to correctly configure the

recognized as analog input pins, resulting in the port

value being read as a logic ‘0’, which may affect user

application functionality.

2.9 Unused I/Os

Unused I/O pins should be configured as outputs and

driven to a logic-low state.

Alternatively, connect a 1k to 10k resistor between VSS

and the unused pin.

Part

Number Vendor Freq. Load

Cap.

Package

Case

Frequency

Tolerance

Mounting

Type

Operating

Temperature

FCR4.0M5T TDK Corp. 4 MHz N/A Radial ±0.5% TH -40°C to +85°C

FCR8.0M5 TDK Corp. 8 MHz N/A Radial ±0.5% TH -40°C to +85°C

HWZT-10.00MD TDK Corp. 10 MHz N/A Radial ±0.5% TH -40°C to +85°C

HWZT-20.00MD TDK Corp. 20 MHz N/A Radial ±0.5% TH -40°C to +85°C

Legend: TH = Through Hole

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.0 CPU

3.1 Overview

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 CPU module has

a 16-bit (data) modified Harvard architecture with an

enhanced instruction set, including significant support

for DSP. The CPU has a 24-bit instruction word with a

variable length opcode field. The Program Counter

(PC) is 23 bits wide and addresses up to 4M x 24 bits

of user program memory space. The actual amount of

program memory implemented varies by device. A

single-cycle instruction prefetch mechanism is used to

help maintain throughput and provides predictable

execution. All instructions execute in a single cycle,

with the exception of instructions that change the

program flow, the double-word move (MOV.D)

instruction and the table instructions. Overhead-free

program loop constructs are supported using the DO

and REPEAT instructions, both of which are

interruptible at any time.

The

PIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices have

sixteen, 16-bit working registers in the programmer’s

model. Each of the working registers can serve as a

data, address or address offset register. The 16th

working register (W15) operates as a software Stack

Pointer (SP) for interrupts and calls.

There are two classes of instruction in the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 devices: MCU and

DSP. These two instruction classes are seamlessly

integrated into a single CPU. The instruction set

includes many addressing modes and is designed for

optimum C compiler efficiency. For most instructions,

the dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 is capable of

executing a data (or program data) memory read, a

working register (data) read, a data memory write and

a program (instruction) memory read per instruction

cycle. As a result, three parameter instructions can be

supported, allowing A + B = C operations to be

executed in a single cycle.

A block diagram of the CPU is shown in Figure 3-1, and

the programmer’s model for the dsPIC33FJ32MC302/

304, dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 is shown in Figure 3-2.

3.2 Data Addressing Overview

The data space can be addressed as 32K words or

64 Kbytes and is split into two blocks, referred to as X

and Y data memory. Each memory block has its own

independent Address Generation Unit (AGU). The

MCU class of instructions operates solely through the

X memory AGU, which accesses the entire memory

map as one linear data space. Certain DSP instructions

operate through the X and Y AGUs to support dual

operand reads, which splits the data address space

into two parts. The X and Y data space boundary is

device-specific.

Overhead-free circular buffers (Modulo Addressing

mode) are supported in both X and Y address spaces.

The Modulo Addressing removes the software

boundary checking overhead for DSP algorithms.

Furthermore, the X AGU circular addressing can be

used with any of the MCU class of instructions. The X

AGU also supports Bit-Reversed Addressing to greatly

simplify input or output data reordering for radix-2 FFT

algorithms.

The upper 32 Kbytes of the data space memory map

can optionally be mapped into program space at any

16K program word boundary defined by the 8-bit

Program Space Visibility Page (PSVPAG) register. The

program-to-data-space mapping feature lets any

instruction access program space as if it were data

space.

Note 1: This data sheet summarizes the features

PIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 2. “CPU”

(DS70204) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.3 DSP Engine Overview

The DSP engine features a high-speed 17-bit by 17-bit

multiplier, a 40-bit ALU, two 40-bit saturating

accumulators and a 40-bit bidirectional barrel shifter.

The barrel shifter is capable of shifting a 40-bit value up

to 16 bits right or left, in a single cycle. The DSP

instructions operate seamlessly with all other

instructions and have been designed for optimal

real-time performance. The MAC instruction and other

associated instructions can concurrently fetch two data

operands from memory while multiplying two W

registers and accumulating and optionally saturating

the result in the same cycle. This instruction

functionality requires that the RAM data space be split

for these instructions and linear for all others. Data

space partitioning is achieved in a transparent and

flexible manner by dedicating certain working registers

to each address space.

3.4 Special MCU Features

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 features a 17-bit

by 17-bit single-cycle multiplier that is shared by both

the MCU ALU and DSP engine. The multiplier can

perform signed, unsigned and mixed-sign

multiplication. Using a 17-bit by 17-bit multiplier for

16-bit by 16-bit multiplication not only allows you to

perform mixed-sign multiplication, it also achieves

accurate results for special operations, such as (-1.0) x

(-1.0).

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 supports 16/16

and 32/16 divide operations, both fractional and

integer. All divide instructions are iterative operations.

They must be executed within a REPEAT loop, resulting

in a total execution time of 19 instruction cycles. The

divide operation can be interrupted during any of those

19 cycles without loss of data.

A 40-bit barrel shifter is used to perform up to a 16-bit

left or right shift in a single cycle. The barrel shifter can

be used by both MCU and DSP instructions.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 3-1: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/

X04 CPU CORE BLOCK DIAGRAM

Instruction

Decode and

Control

PCH PCL

Program Counter

16-bit ALU

Instruction Reg

PCU

16 x 16

W Register Array

ROM Latch

EA MUX

Interrupt

Controller

Stack

Control

Logic

Loop

Control

Logic

Data Latch

Address

Latch

Control Signals

to Various Blocks

Literal Data

16 16

To Peripheral Modules

Data Latch

Address

Latch

X RAM Y RAM

Address Generator Units

Y Data Bus

X Data Bus

DMA

Controller

DMA

RAM

DSP Engine

Divide Support

PSV and Table

Data Access

Control Block

Program Memory

Data Latch

Address Latch

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 3-2: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/

X04 PROGRAMMER’S MODEL

PC22 PC0

7 0

D0D15

Program Counter

Data Table Page Address

STATUS Register

Working Registers

DSP Operand

Registers

W10

W11

W12/DSP Offset

W13/DSP Write Back

W14/Frame Pointer

W15/Stack Pointer

DSP Address

Registers

AD39 AD0AD31

DSP

Accumulators

ACCA

ACCB

7 0

Program Space Visibility Page Address

OA OB SA SB

RCOUNT

15 0

REPEAT Loop Counter

DCOUNT

15 0

DO Loop Counter

DOSTART

22 0

DO Loop Start Address

IPL2 IPL1

SPLIM Stack Pointer Limit Register

AD15

SRL

PUSH.S Shadow

DO Shadow

OAB SAB

15 0

Core Configuration Register

Legend

CORCON

DA DC RA N

TBLPAG

PSVPAG

IPL0 OV

W0/WREG

SRH

DO Loop End Address

DOEND

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.5 CPU Resources

Many useful resources related to the CPU are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

3.5.1 KEY RESOURCES

•Section 2. “CPU” (DS70204)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.6 CPU Control Registers

R-0 R-0 R/C-0 R/C-0 R-0 R/C-0 R -0 R/W-0

OA OB SA(1) SB(1) OAB SAB DA DC

bit 15 bit 8

R/W-0(3) R/W-0(3) R/W-0(3) R-0 R/W-0 R/W-0 R/W-0 R/W-0

IPL<2:0>(2) RA N OV Z C

bit 7 bit 0

Legend:

C = Clear only bit R = Readable bit U = Unimplemented bit, read as ‘0’

S = Set only bit W = Writable bit -n = Value at POR

‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 OA: Accumulator A Overflow Status bit

1 = Accumulator A overflowed

0 = Accumulator A has not overflowed

bit 14 OB: Accumulator B Overflow Status bit

1 = Accumulator B overflowed

0 = Accumulator B has not overflowed

bit 13 SA: Accumulator A Saturation ‘Sticky’ Status bit(1)

1 = Accumulator A is saturated or has been saturated at some time

0 = Accumulator A is not saturated

bit 12 SB: Accumulator B Saturation ‘Sticky’ Status bit(1)

1 = Accumulator B is saturated or has been saturated at some time

0 = Accumulator B is not saturated

bit 11 OAB: OA || OB Combined Accumulator Overflow Status bit

1 = Accumulators A or B have overflowed

0 = Neither Accumulators A or B have overflowed

bit 10 SAB: SA || SB Combined Accumulator (Sticky) Status bit(4)

1 = Accumulators A or B are saturated or have been saturated at some time in the past

0 = Neither Accumulators A or B are saturated

bit 9 DA: DO Loop Active bit

1 = DO loop in progress

0 = DO loop not in progress

bit 8 DC: MCU ALU Half Carry/Borrow bit

1 = A carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized data)

of the result occurred

0 = No carry-out from the 4th low-order bit (for byte-sized data) or 8th low-order bit (for word-sized

data) of the result occurred

Note 1: This bit can be read or cleared (not set).

2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority

Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when

IPL<3> = 1.

3: The IPL<2:0> Status bits are read only when the NSTDIS bit (INTCON1<15>) = 1.

4: This bit can be read or cleared (not set). Clearing this bit clears SA and SB.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(2)

111 = CPU Interrupt Priority Level is 7 (15), user interrupts disabled

110 = CPU Interrupt Priority Level is 6 (14)

101 = CPU Interrupt Priority Level is 5 (13)

100 = CPU Interrupt Priority Level is 4 (12)

011 = CPU Interrupt Priority Level is 3 (11)

010 = CPU Interrupt Priority Level is 2 (10)

001 = CPU Interrupt Priority Level is 1 (9)

000 = CPU Interrupt Priority Level is 0 (8)

bit 4 RA: REPEAT Loop Active bit

1 = REPEAT loop in progress

0 = REPEAT loop not in progress

bit 3 N: MCU ALU Negative bit

1 = Result was negative

0 = Result was non-negative (zero or positive)

bit 2 OV: MCU ALU Overflow bit

This bit is used for signed arithmetic (two’s complement). It indicates an overflow of a magnitude that

causes the sign bit to change state.

1 = Overflow occurred for signed arithmetic (in this arithmetic operation)

0 = No overflow occurred

bit 1 Z: MCU ALU Zero bit

1 = An operation that affects the Z bit has set it at some time in the past

0 = The most recent operation that affects the Z bit has cleared it (i.e., a non-zero result)

bit 0 C: MCU ALU Carry/Borrow bit

1 = A carry-out from the Most Significant bit of the result occurred

0 = No carry-out from the Most Significant bit of the result occurred

Note 1: This bit can be read or cleared (not set).

2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority

Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when

IPL<3> = 1.

3: The IPL<2:0> Status bits are read only when the NSTDIS bit (INTCON1<15>) = 1.

4: This bit can be read or cleared (not set). Clearing this bit clears SA and SB.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R-0 R-0 R-0

— — —USEDT

(1) DL<2:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R/W-0 R/W-0 R/W-0

SATA SATB SATDW ACCSAT IPL3(2) PSV RND IF

bit 7 bit 0

Legend: C = Clear only bit

R = Readable bit W = Writable bit -n = Value at POR ‘1’ = Bit is set

‘0’ = Bit is cleared ‘x’ = Bit is unknown U = Unimplemented bit, read as ‘0’

bit 15-13 Unimplemented: Read as ‘0’

bit 12 US: DSP Multiply Unsigned/Signed Control bit

1 = DSP engine multiplies are unsigned

0 = DSP engine multiplies are signed

bit 11 EDT: Early DO Loop Termination Control bit(1)

1 = Terminate executing DO loop at end of current loop iteration

0 = No effect

bit 10-8 DL<2:0>: DO Loop Nesting Level Status bits

111 = 7 DO loops active

•

001 = 1 DO loop active

000 = 0 DO loops active

bit 7 SATA: ACCA Saturation Enable bit

1 = Accumulator A saturation enabled

0 = Accumulator A saturation disabled

bit 6 SATB: ACCB Saturation Enable bit

1 = Accumulator B saturation enabled

0 = Accumulator B saturation disabled

bit 5 SATDW: Data Space Write from DSP Engine Saturation Enable bit

1 = Data space write saturation enabled

0 = Data space write saturation disabled

bit 4 ACCSAT: Accumulator Saturation Mode Select bit

1 = 9.31 saturation (super saturation)

0 = 1.31 saturation (normal saturation)

bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)

1 = CPU interrupt priority level is greater than 7

0 = CPU interrupt priority level is 7 or less

bit 2 PSV: Program Space Visibility in Data Space Enable bit

1 = Program space visible in data space

0 = Program space not visible in data space

Note 1: This bit is always read as ‘0’.

2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU interrupt priority level.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 1 RND: Rounding Mode Select bit

1 = Biased (conventional) rounding enabled

0 = Unbiased (convergent) rounding enabled

bit 0 IF: Integer or Fractional Multiplier Mode Select bit

1 = Integer mode enabled for DSP multiply ops

0 = Fractional mode enabled for DSP multiply ops

Note 1: This bit is always read as ‘0’.

2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU interrupt priority level.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.7 Arithmetic Logic Unit (ALU)

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 ALU is 16 bits

wide and is capable of addition, subtraction, bit shifts

and logic operations. Unless otherwise mentioned,

arithmetic operations are two’s complement in nature.

Depending on the operation, the ALU can affect the

values of the Carry (C), Zero (Z), Negative (N),

Overflow (OV) and Digit Carry (DC) Status bits in the

SR register. The C and DC Status bits operate as

Borrow and Digit Borrow bits, respectively, for

subtraction operations.

The ALU can perform 8-bit or 16-bit operations,

depending on the mode of the instruction that is used.

Data for the ALU operation can come from the W

addressing mode of the instruction. Likewise, output

data from the ALU can be written to the W register array

or a data memory location.

Refer to the “16-bit MCU and DSC Programmer’s

Reference Manual” (DS70157) for information on the

SR bits affected by each instruction.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 CPU incorporates

hardware support for both multiplication and division.

This includes a dedicated hardware multiplier and

support hardware for 16-bit-divisor division.

3.7.1 MULTIPLIER

Using the high-speed 17-bit x 17-bit multiplier of the

DSP engine, the ALU supports unsigned, signed or

mixed-sign operation in several MCU multiplication

modes:

• 16-bit x 16-bit signed

• 16-bit x 16-bit unsigned

• 16-bit signed x 5-bit (literal) unsigned

• 16-bit unsigned x 16-bit unsigned

• 16-bit unsigned x 5-bit (literal) unsigned

• 16-bit unsigned x 16-bit signed

• 8-bit unsigned x 8-bit unsigned

3.7.2 DIVIDER

The divide block supports 32-bit/16-bit and 16-bit/16-bit

signed and unsigned integer divide operations with the

following data sizes:

• 32-bit signed/16-bit signed divide

• 32-bit unsigned/16-bit unsigned divide

• 16-bit signed/16-bit signed divide

• 16-bit unsigned/16-bit unsigned divide

The quotient for all divide instructions ends up in W0

and the remainder in W1. 16-bit signed and unsigned

DIV instructions can specify any W register for both

the 16-bit divisor (Wn) and any W register (aligned)

pair (W(m + 1):Wm) for the 32-bit dividend. The divide

algorithm takes one cycle per bit of divisor, so both

32-bit/16-bit and 16-bit/16-bit instructions take the

same number of cycles to execute.

3.8 DSP Engine

The DSP engine consists of a high-speed 17-bit x

17-bit multiplier, a barrel shifter and a 40-bit adder/

subtracter (with two target accumulators, round and

saturation logic).

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 is a single-cycle

instruction flow architecture; therefore, concurrent

operation of the DSP engine with MCU instruction flow

is not possible. However, some MCU ALU and DSP

engine resources can be used concurrently by the

same instruction (e.g., ED, EDAC).

The DSP engine can also perform inherent

accumulator-to-accumulator operations that require no

additional data. These instructions are ADD, SUB and

NEG.

The DSP engine has options selected through bits in

the CPU Core Control register (CORCON), as listed

below:

• Fractional or integer DSP multiply (IF)

• Signed or unsigned DSP multiply (US)

• Conventional or convergent rounding (RND)

• Automatic saturation on/off for ACCA (SATA)

• Automatic saturation on/off for ACCB (SATB)

• Automatic saturation on/off for writes to data

memory (SATDW)

• Accumulator Saturation mode selection

(ACCSAT)

A block diagram of the DSP engine is shown in

Figure 3-3.

TABLE 3-1: DSP INSTRUCTIONS

SUMMARY

Instruction Algebraic

Operation

ACC Write

Back

CLR A = 0 Yes

ED A = (x – y)2No

EDAC A = A + (x – y)2No

MAC A = A + (x • y) Yes

MAC A = A + x2 No

MOVSAC No change in A Yes

MPY A = x • y No

MPY A = x 2 No

MPY.N A = – x • y No

MSC A = A – x • y Yes

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 3-3: DSP ENGINE BLOCK DIAGRAM

Zero Backfill

Sign-Extend

Barrel

Shifter

40-bit Accumulator A

40-bit Accumulator B Round

Logic

X Data Bus

To/From W Array

Adder

Saturate

Negate

16 16

40 40

Y Data Bus

Carry/Borrow Out

Carry/Borrow In

Multiplier/Scaler

17-bit

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.8.1 MULTIPLIER

The 17-bit x 17-bit multiplier is capable of signed or

unsigned operation and can multiplex its output using a

scaler to support either 1.31 fractional (Q31) or 32-bit

integer results. Unsigned operands are zero-extended

into the 17th bit of the multiplier input value. Signed

operands are sign-extended into the 17th bit of the

multiplier input value. The output of the 17-bit x 17-bit

multiplier/scaler is a 33-bit value that is sign-extended

to 40 bits. Integer data is inherently represented as a

signed two’s complement value, where the Most

Significant bit (MSb) is defined as a sign bit. The range

of an N-bit two’s complement integer is -2N-1 to 2N-1 – 1.

• For a 16-bit integer, the data range is -32768

(0x8000) to 32767 (0x7FFF) including 0

• For a 32-bit integer, the data range is

-2,147,483,648 (0x8000 0000) to 2,147,483,647

(0x7FFF FFFF)

When the multiplier is configured for fractional

multiplication, the data is represented as a two’s

complement fraction, where the MSb is defined as a

sign bit and the radix point is implied to lie just after the

sign bit (QX format). The range of an N-bit two’s

complement fraction with this implied radix point is -1.0

to (1 – 21-N). For a 16-bit fraction, the Q15 data range

is -1.0 (0x8000) to 0.999969482 (0x7FFF) including 0

and has a precision of 3.01518x10-5. In Fractional

mode, the 16 x 16 multiply operation generates a 1.31

product that has a precision of 4.65661 x 10-10.

The same multiplier is used to support the MCU

multiply instructions, which include integer 16-bit

signed, unsigned and mixed sign multiply operations.

The MUL instruction can be directed to use byte or

word-sized operands. Byte operands direct a 16-bit

result, and word operands direct a 32-bit result to the

specified registers in the W array.

3.8.2 DATA ACCUMULATORS AND

ADDER/SUBTRACTER

The data accumulator consists of a 40-bit adder/

subtracter with automatic sign extension logic. It can

select one of two accumulators (A or B) as its

pre-accumulation source and post-accumulation

destination. For the ADD and LAC instructions, the data

to be accumulated or loaded can be optionally scaled

using the barrel shifter prior to accumulation.

3.8.2.1 Adder/Subtracter, Overflow and

Saturation

The adder/subtracter is a 40-bit adder with an optional

zero input into one side, and either true or complement

data into the other input.

• In the case of addition, the Carry/Borrow input is

active-high and the other input is true data (not

complemented)

• In the case of subtraction, the Carry/Borrow input

is active-low and the other input is complemented

The adder/subtracter generates Overflow Status bits,

SA/SB and OA/OB, which are latched and reflected in

the STATUS register:

• Overflow from bit 39: this is a catastrophic

overflow in which the sign of the accumulator is

destroyed

• Overflow into guard bits 32 through 39: this is a

recoverable overflow. This bit is set whenever all

the guard bits are not identical to each other.

The adder has an additional saturation block that

controls accumulator data saturation, if selected. It

uses the result of the adder, the Overflow Status bits

described previously and the SAT<A:B>

(CORCON<7:6>) and ACCSAT (CORCON<4>) mode

control bits to determine when and to what value to

saturate.

Six STATUS register bits support saturation and

overflow:

• OA: ACCA overflowed into guard bits

• OB: ACCB overflowed into guard bits

• SA: ACCA saturated (bit 31 overflow and

saturation)

ACCA overflowed into guard bits and saturated

(bit 39 overflow and saturation)

• SB: ACCB saturated (bit 31 overflow and

saturation)

ACCB overflowed into guard bits and saturated

(bit 39 overflow and saturation)

• OAB: Logical OR of OA and OB

• SAB: Logical OR of SA and SB

The OA and OB bits are modified each time data

passes through the adder/subtracter. When set, they

indicate that the most recent operation has overflowed

into the accumulator guard bits (bits 32 through 39).

The OA and OB bits can also optionally generate an

arithmetic warning trap when set and the

corresponding Overflow Trap Flag Enable bits (OVATE,

OVBTE) in the INTCON1 register are set (refer to

Section 7.0 “Interrupt Controller”). This allows the

user application to take immediate action, for example,

to correct system gain.

The SA and SB bits are modified each time data

passes through the adder/subtracter, but can only be

cleared by the user application. When set, they indicate

that the accumulator has overflowed its maximum

range (bit 31 for 32-bit saturation or bit 39 for 40-bit

saturation) and is saturated (if saturation is enabled).

When saturation is not enabled, SA and SB default to

bit 39 overflow and thus indicate that a catastrophic

overflow has occurred. If the COVTE bit in the

INTCON1 register is set, the SA and SB bits generate

an arithmetic warning trap when saturation is disabled.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

The Overflow and Saturation Status bits can

optionally be viewed in the STATUS Register (SR) as

the logical OR of OA and OB (in bit OAB) and the

logical OR of SA and SB (in bit SAB). Programmers

can check one bit in the STATUS register to

determine if either accumulator has overflowed, or

one bit to determine if either accumulator has

saturated. This is useful for complex number

arithmetic, which typically uses both accumulators.

The device supports three Saturation and Overflow

modes:

• Bit 39 Overflow and Saturation:

When bit 39 overflow and saturation occurs, the

saturation logic loads the maximally positive 9.31

(0x7FFFFFFFFF) or maximally negative 9.31 value

(0x8000000000) into the target accumulator. The

SA or SB bit is set and remains set until cleared by

the user application. This condition is referred to as

super saturation and provides protection against

erroneous data or unexpected algorithm problems

(such as gain calculations).

• Bit 31 Overflow and Saturation:

When bit 31 overflow and saturation occurs, the

saturation logic then loads the maximally positive

1.31 value (0x007FFFFFFF) or maximally

negative 1.31 value (0x0080000000) into the

target accumulator. The SA or SB bit is set and

remains set until cleared by the user application.

When this Saturation mode is in effect, the guard

bits are not used, so the OA, OB or OAB bits are

never set.

• Bit 39 Catastrophic Overflow:

The bit 39 Overflow Status bit from the adder is

used to set the SA or SB bit, which remains set

until cleared by the user application. No saturation

operation is performed, and the accumulator is

allowed to overflow, destroying its sign. If the

COVTE bit in the INTCON1 register is set, a

catastrophic overflow can initiate a trap exception.

3.8.3 ACCUMULATOR WRITE BACK

The MAC class of instructions (with the exception of

MPY, MPY.N, ED and EDAC) can optionally write a

rounded version of the high word (bits 31 through 16)

of the accumulator that is not targeted by the instruction

into data space memory. The write is performed across

the X bus into combined X and Y address space. The

following addressing modes are supported:

• W13, Register Direct:

The rounded contents of the non-target

accumulator are written into W13 as a

1.15 fraction.

• [W13] + = 2, Register Indirect with Post-Increment:

The rounded contents of the non-target

accumulator are written into the address pointed

to by W13 as a 1.15 fraction. W13 is then

incremented by 2 (for a word write).

3.8.3.1 Round Logic

The round logic is a combinational block that performs

a conventional (biased) or convergent (unbiased)

round function during an accumulator write (store). The

Round mode is determined by the state of the RND bit

in the CORCON register. It generates a 16-bit, 1.15

data value that is passed to the data space write

saturation logic. If rounding is not indicated by the

instruction, a truncated 1.15 data value is stored, and

the least significant word is simply discarded.

Conventional rounding zero-extends bit 15 of the

accumulator and adds it to the ACCxH word (bits 16

through 31 of the accumulator).

• If the ACCxL word (bits 0 through 15 of the

accumulator) is between 0x8000 and 0xFFFF

(0x8000 included), ACCxH is incremented.

• If ACCxL is between 0x0000 and 0x7FFF, ACCxH

is left unchanged.

A consequence of this algorithm is that over a

succession of random rounding operations, the value

tends to be biased slightly positive.

Convergent (or unbiased) rounding operates in the

same manner as conventional rounding, except when

ACCxL equals 0x8000. In this case, the Least

Significant bit (bit 16 of the accumulator) of ACCxH is

examined:

• If it is ‘1’, ACCxH is incremented.

• If it is ‘0’, ACCxH is not modified.

Assuming that bit 16 is effectively random in nature,

this scheme removes any rounding bias that may

accumulate.

The SAC and SAC.R instructions store either a

truncated (SAC), or rounded (SAC.R) version of the

contents of the target accumulator to data memory via

the X bus, subject to data saturation (see

Section 3.8.3.2 “Data Space Write Saturation”). For

the MAC class of instructions, the accumulator

write-back operation functions in the same manner,

addressing combined MCU (X and Y) data space

though the X bus. For this class of instructions, the data

is always subject to rounding.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

3.8.3.2 Data Space Write Saturation

In addition to adder/subtracter saturation, writes to data

space can also be saturated, but without affecting the

contents of the source accumulator. The data space

write saturation logic block accepts a 16-bit, 1.15

fractional value from the round logic block as its input,

together with overflow status from the original source

(accumulator) and the 16-bit round adder. These inputs

are combined and used to select the appropriate 1.15

fractional value as output to write to data space

memory.

If the SATDW bit in the CORCON register is set, data

(after rounding or truncation) is tested for overflow and

adjusted accordingly:

• For input data greater than 0x007FFF, data

written to memory is forced to the maximum

positive 1.15 value, 0x7FFF.

• For input data less than 0xFF8000, data written to

memory is forced to the maximum negative 1.15

value, 0x8000.

The Most Significant bit of the source (bit 39) is used to

determine the sign of the operand being tested.

If the SATDW bit in the CORCON register is not set, the

input data is always passed through unmodified under

all conditions.

3.8.4 BARREL SHIFTER

The barrel shifter can perform up to 16-bit arithmetic or

logic right shifts, or up to 16-bit left shifts in a single

cycle. The source can be either of the two DSP

accumulators or the X bus (to support multi-bit shifts of

The shifter requires a signed binary value to determine

both the magnitude (number of bits) and direction of the

shift operation. A positive value shifts the operand right.

A negative value shifts the operand left. A value of ‘0’

does not modify the operand.

The barrel shifter is 40 bits wide, thereby obtaining a

40-bit result for DSP shift operations and a 16-bit result

for MCU shift operations. Data from the X bus is

presented to the barrel shifter between bit positions 16

and 31 for right shifts, and between bit positions 0 and

16 for left shifts.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.0 MEMORY ORGANIZATION

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 architecture

features separate program and data memory spaces

and buses. This architecture also allows the direct

access to program memory from the data space during

code execution.

4.1 Program Address Space

The program address memory space of the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 devices is 4M

instructions. The space is addressable by a 24-bit

value derived either from the 23-bit Program Counter

(PC) during program execution, or from table operation

or data space remapping as described in Section 4.8

“Interfacing Program and Data Memory Spaces”.

User application access to the program memory space

is restricted to the lower half of the address range

(0x000000 to 0x7FFFFF). The exception is the use of

TBLRD/TBLWT operations, which use TBLPAG<7> to

permit access to the Configuration bits and Device ID

sections of the configuration memory space.

The memory map for the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 devices is shown in Figure 4-1.

FIGURE 4-1: PROGRAM MEMORY MAP FOR dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 AND dsPIC33FJ128MCX02/X04 DEVICES

Note: This data sheet summarizes the features

of the

PIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 4. “Program

Memory” (DS70203) of the “dsPIC33F/

PIC24H Family Reference Manual”, which

is available from the Microchip web site

(www.microchip.com).

Reset Address

0x000000

0x0000FE

0x000002

0x000100

Device Configuration

User Program

Flash Memory

(11264 instructions)

0x800000

0xF80000

Registers 0xF80017

0xF80018

DEVID (2)

0xFEFFFE

0xFF0000

0xFF0002

0xF7FFFE

Unimplemented

(Read ‘0’s)

GOTO Instruction

0x000004

Reserved

0x7FFFFE

Reserved

0x000200

0x0001FE

0x000104

Alternate Vector Table

Reserved

Interrupt Vector Table

dsPIC33FJ32MC302/304

Configuration Memory Space User Memory Space

Note: Memory areas are not shown to scale.

Reset Address

Device Configuration

User Program

Flash Memory

(22016 instructions)

Registers

DEVID (2)

Unimplemented

(Read ‘0’s)

GOTO Instruction

Reserved

Alternate Vector Table

Reserved

Interrupt Vector Table

dsPIC33FJ64MCX02/X04

Reset Address

Device Configuration

User Program

Flash Memory

(44032 instructions)

Registers

DEVID (2)

Unimplemented

(Read ‘0’s)

GOTO Instruction

Reserved

Alternate Vector Table

Reserved

Interrupt Vector Table

dsPIC33FJ128MCX02/X04

0x0057FE

0x005800

0x015800

0x0157FE

0x00AC00

0x00ABFE

Reserved Reserved Reserved

0xFFFFFE

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.1.1 PROGRAM MEMORY

ORGANIZATION

The program memory space is organized in

word-addressable blocks. Although it is treated as

24 bits wide, it is more appropriate to think of each

address of the program memory as a lower and upper

word, with the upper byte of the upper word being

unimplemented. The lower word always has an even

address, while the upper word has an odd address

(Figure 4-2).

Program memory addresses are always word-aligned

on the lower word, and addresses are incremented or

decremented by two during code execution. This

arrangement provides compatibility with data memory

space addressing and makes data in the program

memory space accessible.

4.1.2 INTERRUPT AND TRAP VECTORS

All dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices reserve

the addresses between 0x00000 and 0x000200 for

hard-coded program execution vectors. A hardware

Reset vector is provided to redirect code execution

from the default value of the PC on device Reset to the

actual start of code. A GOTO instruction is programmed

by the user application at 0x000000, with the actual

address for the start of code at 0x000002.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices also have

two interrupt vector tables, located from 0x000004 to

0x0000FF and 0x000100 to 0x0001FF. These vector

tables allow each of the device interrupt sources to be

handled by separate Interrupt Service Routines (ISRs).

A more detailed discussion of the interrupt vector

tables is provided in Section 7.1 “Interrupt Vector

Table”.

FIGURE 4-2: PROGRAM MEMORY ORGANIZATION

0816

PC Address

0x000000

0x000002

0x000004

0x000006

00000000

Program Memory

‘Phantom’ Byte

(read as ‘0’)

least significant word

most significant word

Instruction Width

0x000001

0x000003

0x000005

0x000007

msw

Address (lsw Address)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.2 Data Address Space

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 CPU has a

separate 16 bit wide data memory space. The data

space is accessed using separate Address Generation

Units (AGUs) for read and write operations. The data

memory maps is shown in Figure 4-4.

All Effective Addresses (EAs) in the data memory space

are 16 bits wide and point to bytes within the data space.

This arrangement gives a data space address range of

64 Kbytes or 32K words. The lower half of the data

memory space (that is, when EA<15> = 0) is used for

implemented memory addresses, while the upper half

(EA<15> = 1) is reserved for the Program Space

Visibility area (see Section 4.8.3 “Reading Data from

Program Memory Using Program Space Visibility”).

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices imple-

ment up to 16 Kbytes of data memory. Should an EA

point to a location outside of this area, an all-zero word

or byte is returned.

4.2.1 DATA SPACE WIDTH

The data memory space is organized in byte

addressable, 16-bit wide blocks. Data is aligned in data

memory and registers as 16-bit words, but all data

space EAs resolve to bytes. The Least Significant

Bytes (LSBs) of each word have even addresses, while

the Most Significant Bytes (MSBs) have odd

addresses.

4.2.2 DATA MEMORY ORGANIZATION

AND ALIGNMENT

To maintain backward compatibility with PIC® MCU

devices and improve data space memory usage

efficiency, the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 instruction set supports both word and byte

operations. As a consequence of byte accessibility, all

effective address calculations are internally scaled to

step through word-aligned memory. For example, the

core recognizes that Post-Modified Register Indirect

Addressing mode [Ws++] results in a value of Ws + 1

for byte operations and Ws + 2 for word operations.

A data byte read, reads the complete word that

contains the byte, using the LSB of any EA to

determine which byte to select. The selected byte is

placed onto the LSB of the data path. That is, data

memory and registers are organized as two parallel

byte-wide entities with shared (word) address decode

but separate write lines. Data byte writes only write to

the corresponding side of the array or register that

matches the byte address.

All word accesses must be aligned to an even address.

Misaligned word data fetches are not supported, so

care must be taken when mixing byte and word

operations, or translating from 8-bit MCU code. If a

misaligned read or write is attempted, an address error

trap is generated. If the error occurred on a read, the

instruction underway is completed. If the error occurred

on a write, the instruction is executed but the write does

not occur. In either case, a trap is then executed,

allowing the system and/or user application to examine

the machine state prior to execution of the address

Fault.

All byte loads into any W register are loaded into the

Least Significant Byte. The Most Significant Byte is not

modified.

A sign-extend instruction (SE) is provided to allow user

applications to translate 8-bit signed data to 16-bit

signed values. Alternatively, for 16-bit unsigned data,

user applications can clear the MSB of any W register

by executing a zero-extend (ZE) instruction on the

appropriate address.

4.2.3 SFR SPACE

The first 2 Kbytes of the Near Data Space, from 0x0000

to 0x07FF, is primarily occupied by Special Function

Registers (SFRs). These are used by the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 core and peripheral

modules for controlling the operation of the device.

The SFRs are distributed among the modules that they

control, and are generally grouped together by module.

Much of the SFR space contains unused addresses;

these are read as ‘0’.

4.2.4 NEAR DATA SPACE

The 8 Kbyte area between 0x0000 and 0x1FFF is

referred to as the near data space. Locations in this

space are directly addressable via a 13-bit absolute

address field within all memory direct instructions.

Additionally, the whole data space is addressable using

the MOV instructions, which support Memory Direct

Addressing mode with a 16-bit address field, or by

using Indirect Addressing mode using a working

Note: The actual set of peripheral features and

interrupts varies by the device. Refer to

the corresponding device tables and

pinout diagrams for device-specific

information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 4-3: DATA MEMORY MAP FOR dsPIC33FJ32MC302/304 DEVICES WITH 4 KB RAM

0x0000

0x07FE

SFR Space

0xFFFE

X Data RAM (X)

16 bits

LSbMSb

0xFFFF

X Data

Optionally

Mapped

into Program

Memory

Unimplemented (X)

0x0800

2 Kbyte

SFR Space

0x1000

0x0FFE

0x17FE

0x1800

4 Kbyte

SRAM Space Y Data RAM (Y)

Near

Data

6 Kbyte

Space

0x13FE

0x1400

LSb

Address

MSb

Address

DMA RAM

0x0000

0x07FF

0x0801

0x1001

0x0FFF

0x17FF

0x1801

0x13FF

0x1401

0x8001 0x8000

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 4-4: DATA MEMORY MAP FOR dsPIC33FJ128MC202/204 AND dsPIC33FJ64MC202/

204 DEVICES WITH 8 KB RAM

0x0000

0x07FE

0x17FE

0xFFFE

LSb

Address

16 bits

LSbMSb

MSb

Address

0x0001

0x07FF

0x17FF

0xFFFF

Optionally

Mapped

into Program

Memory

0x27FF 0x27FE

0x0801 0x0800

0x1801 0x1800

2 Kbyte

SFR Space

8 Kbyte

SRAM Space

0x8001 0x8000

0x28000x2801

0x1FFE

0x2000

0x1FFF

0x2001

Space

Data

Near

8 Kbyte

SFR

Space

X Data RAM (X)

X Data

Unimplemented (X)

DMA RAM

Y Data RAM (Y)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 4-5: DATA MEMORY MAP FOR dsPIC33FJ128MC802/804 AND dsPIC33FJ64MC802/

804 DEVICES WITH 16 KB RAM

0x0000

0x07FE

0x27FE

0xFFFE

LSb

Address

16 bits

LSbMSb

MSb

Address

0x0001

0x07FF

0x27FF

0xFFFF

Optionally

Mapped

into Program

Memory

0x47FF 0x47FE

0x0801 0x0800

0x2801 0x2800

Near

Data

2 Kbyte

SFR Space

16 Kbyte

SRAM Space

8 Kbyte

Space

0x8001 0x8000

0x48000x4801

0x3FFE

0x4000

0x3FFF

0x4001

0x1FFE

0x1FFF

SFR Space

X Data RAM (X)

X Data

Unimplemented (X)

DMA RAM

Y Data RAM (Y)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.2.5 X AND Y DATA SPACES

The core has two data spaces, X and Y. These data

spaces can be considered either separate (for some

DSP instructions), or as one unified linear address

range (for MCU instructions). The data spaces are

accessed using two Address Generation Units (AGUs)

and separate data paths. This feature allows certain

instructions to concurrently fetch two words from RAM,

thereby enabling efficient execution of DSP algorithms

such as Finite Impulse Response (FIR) filtering and

Fast Fourier Transform (FFT).

The X data space is used by all instructions and

supports all addressing modes. X data space has

separate read and write data buses. The X read data

bus is the read data path for all instructions that view

data space as combined X and Y address space. It is

also the X data prefetch path for the dual operand DSP

instructions (MAC class).

The Y data space is used in concert with the X data

space by the MAC class of instructions (CLR, ED,

EDAC, MAC, MOVSAC, MPY, MPY.N and MSC) to

provide two concurrent data read paths.

Both the X and Y data spaces support Modulo

Addressing mode for all instructions, subject to

addressing mode restrictions. Bit-Reversed Addressing

mode is only supported for writes to X data space.

All data memory writes, including in DSP instructions,

view data space as combined X and Y address space.

The boundary between the X and Y data spaces is

device-dependent and is not user-programmable.

All effective addresses are 16 bits wide and point to

bytes within the data space. Therefore, the data space

address range is 64 Kbytes, or 32K words, though the

implemented memory locations vary by device.

4.2.6 DMA RAM

Every dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 device contains

up to 2 Kbytes of dual ported DMA RAM located at

the end of Y data space, and is a part of Y data

space. Memory locations in the DMA RAM space are

accessible simultaneously by the CPU and the DMA

controller module. The DMA RAM is utilized by the

DMA controller to store data to be transferred to

various peripherals using DMA, as well as data

transferred from various peripherals using DMA. The

DMA RAM can be accessed by the DMA controller

without having to steal cycles from the CPU.

When the CPU and the DMA controller attempt to

concurrently write to the same DMA RAM location, the

hardware ensures that the CPU is given precedence in

accessing the DMA RAM location. Therefore, the DMA

RAM provides a reliable means of transferring DMA

data without ever having to stall the CPU.

4.3 Memory Resources

Many useful resources related to Memory Organization

are provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

4.3.1 KEY RESOURCES

•Section 4. “Program Memory” (DS70203)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: The DMA RAM can be used for general

purpose data storage if the DMA function

is not required in an application.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.4 Special Function Register Maps

TABLE 4-1: CPU CORE REGISTERS MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

WREG0 0000 Working Register 0

0000

WREG1 0002 Working Register 1

0000

WREG2 0004 Working Register 2

0000

WREG3 0006 Working Register 3

0000

WREG4 0008 Working Register 4

0000

WREG5 000A Working Register 5

0000

WREG6 000C Working Register 6

0000

WREG7 000E Working Register 7

0000

WREG8 0010 Working Register 8

0000

WREG9 0012 Working Register 9

0000

WREG10 0014 Working Register 10

0000

WREG11 0016 Working Register 11

0000

WREG12 0018 Working Register 12

0000

WREG13 001A Working Register 13

0000

WREG14 001C Working Register 14

0000

WREG15 001E Working Register 15

0800

SPLIM 0020 Stack Pointer Limit Register

xxxx

ACCAL 0022 ACCAL

xxxx

ACCAH 0024 ACCAH

xxxx

ACCAU 0026 ACCA<39> ACCAU

xxxx

ACCBL 0028 ACCBL

xxxx

ACCBH 002A ACCBH

xxxx

ACCBU 002C ACCB<39> ACCBU

xxxx

PCL 002E Program Counter Low Word Register

xxxx

PCH 0030 — — — — — — — — Program Counter High Byte Register

0000

TBLPAG 0032 — — — — — — — — Table Page Address Pointer Register

0000

PSVPAG 0034 — — — — — — — — Program Memory Visibility Page Address Pointer Register

0000

RCOUNT 0036 Repeat Loop Counter Register

xxxx

DCOUNT

0038 DCOUNT<15:0> xxxx

DOSTARTL

003A DOSTARTL<15:1> 0xxxx

DOSTARTH

003C

— — — — — — — — — —

DOSTARTH<5:0> 00xx

DOENDL

003E DOENDL<15:1> 0xxxx

DOENDH

0040

— — — — — — — — — —

DOENDH<5:0> 00xx

SR 0042 OA OB SA SB OAB SAB DA DC IPL2 IPL1 IPL0 RA N OV Z C

0000

CORCON 0044 — — — US EDT DL<2:0>

SATA SATB SATDW ACCSAT IPL3 PSV RND IF

0020

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

MODCON 0046 XMODEN YMODEN

— —

BWM<3:0> YWM<3:0> XWM<3:0> 0000

XMODSRT 0048 XS<15:1> 0xxxx

XMODEND 004A XE<15:1> 1xxxx

YMODSRT 004C YS<15:1> 0xxxx

YMODEND 004E YE<15:1> 1xxxx

XBREV 0050 BREN XB<14:0> xxxx

DISICNT 0052 —

— Disable Interrupts Counter

xxxx

TABLE 4-1: CPU CORE REGISTERS MAP (CONTINUED)

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-2: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJ128MC202/802, dsPIC33FJ64MC202/802 AND dsPIC33FJ32MC302

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE

———

CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE 0000

CNEN2 0062

—

CN30IE CN29IE

—

CN27IE

— —

CN24IE CN23IE CN22IE CN21IE

————

CN16IE 0000

CNPU1 0068 CN15PUE CN14PUE CN13PUE CN12PUE CN11PUE

———

CN7PUE CN6PUE CN5PUE CN4PUE CN3PUE CN2PUE CN1PUE CN0PUE 0000

CNPU2 006A

—

CN30PUE CN29PUE

—

CN27PUE

— —

CN24PUE CN23PUE CN22PUE CN21PUE

————

CN16PUE 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-3: CHANGE NOTIFICATION REGISTER MAP FOR dsPIC33FJ128MC204/804, dsPIC33FJ64MC204/804 AND dsPIC33FJ32MC304

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

CNEN1 0060 CN15IE CN14IE CN13IE CN12IE CN11IE CN10IE CN9IE CN8IE CN7IE CN6IE CN5IE CN4IE CN3IE CN2IE CN1IE CN0IE 0000

CNEN2 0062

—

CN30IE CN29IE CN28IE CN27IE CN26IE CN25IE CN24IE CN23IE CN22IE CN21IE CN20IE CN19IE CN18IE CN17IE CN16IE 0000

CNPU1 0068 CN15PUE CN14PUE CN13PUE CN12PUE CN11PUE CN10PUE CN9PUE CN8PUE CN7PUE CN6PUE CN5PUE CN4PUE CN3PUE CN2PUE CN1PUE CN0PUE 0000

CNPU2 006A

—

CN30PUE CN29PUE CN28PUE CN27PUE CN26PUE CN25PUE CN24PUE CN23PUE CN22PUE CN21PUE CN20PUE CN19PUE CN18PUE CN17PUE CN16PUE 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-4: INTERRUPT CONTROLLER REGISTER MAP

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

INTCON1 0080 NSTDIS OVAERR OVBERR COVAERR COVBERR OVATE OVBTE COVTE SFTACERR DIV0ERR DMACERR MATHERR ADDRERR STKERR OSCFAIL —

0000

INTCON2 0082 ALTIVT DISI — — — — — — — — — — — INT2EP INT1EP INT0EP

0000

IFS0 0084 — DMA1IF AD1IF U1TXIF U1RXIF SPI1IF SPI1EIF T3IF T2IF OC2IF IC2IF DMA0IF T1IF OC1IF IC1IF INT0IF

0000

IFS1 0086 U2TXIF U2RXIF INT2IF T5IF T4IF OC4IF OC3IF DMA2IF IC8IF IC7IF — INT1IF CNIF CMIF MI2C1IF SI2C1IF

0000

IFS2 0088 —DMA4IFPMPIF— — — — — — — —DMA3IFC1IF

(1)

C1RXIF

(1)

SPI2IF SPI2EIF

0000

IFS3 008A FLTA1IF RTCIF DMA5IF —— QEI1IF PWM1IF — — — — — — — — —

0000

IFS4

008C DAC1LIF

(2)

DAC1RIF

(2)

—— QEI2IF FLTA2IF PWM2IF ——C1TXIF

(1)

DMA7IF DMA6IF CRCIF U2EIF U1EIF —

0000

IEC0 0094 — DMA1IE AD1IE U1TXIE U1RXIE SPI1IE SPI1EIE T3IE T2IE OC2IE IC2IE DMA0IE T1IE OC1IE IC1IE INT0IE

0000

IEC1 0096 U2TXIE U2RXIE INT2IE T5IE T4IE OC4IE OC3IE DMA2IE IC8IE IC7IE — INT1IE CNIE CMIE MI2C1IE SI2C1IE

0000

IEC2 0098 —DMA4IEPMPIE— — — — — — — — DMA3IE C1IE

(1)

C1RXIE

(1)

SPI2IE SPI2EIE

0000

IEC3 009A FLTA1IE RTCIE DMA5IE ——QEI1IEPWM1IE— — — — — — — — —

0000

IEC4

009C DAC1LIE

(2)

DAC1RIE

(2)

—— QEI2IE FLTA2IE PWM2IE ——C1TXIE

(1)

DMA7IE DMA6IE CRCIE U2EIE U1EIE —

0000

IPC0 00A4 — T1IP<2:0> —OC1IP<2:0> — IC1IP<2:0> — INT0IP<2:0>

4444

IPC1 00A6 — T2IP<2:0> —OC2IP<2:0> — IC2IP<2:0> — DMA0IP<2:0>

4444

IPC2 00A8 — U1RXIP<2:0> — SPI1IP<2:0> —SPI1EIP<2:0>— T3IP<2:0>

4444

IPC3 00AA — — — — — DMA1IP<2:0> — AD1IP<2:0> — U1TXIP<2:0>

0444

IPC4 00AC — CNIP<2:0> —CMIP<2:0> — MI2C1IP<2:0> — SI2C1IP<2:0>

4444

IPC5 00AE —IC8IP<2:0>—IC7IP<2:0> — — — — — INT1IP<2:0>

4404

IPC6 00B0 — T4IP<2:0> —OC4IP<2:0> — OC3IP<2:0> — DMA2IP<2:0>

4444

IPC7 00B2 — U2TXIP<2:0> — U2RXIP<2:0> — INT2IP<2:0> — T5IP<2:0>

4444

IPC8 00B4 — C1IP<2:0>

(1)

— C1RXIP<2:0>

(1)

— SPI2IP<2:0> — SPI2EIP<2:0>

4444

IPC9 00B6 — — — — — — — — — — — — — DMA3IP<2:0>

0004

IPC11 00BA — — — — — DMA4IP<2:0> — PMPIP<2:0> — — — —

0440

IPC14 00C0 — — — — — QEI1IP<2:0> — PWM1IP<2:0> — — — —

0440

IPC15 00C2 — FLTA1IP<2:0> — RTCIP<2:0> — DMA5IP<2:0> — — — —

4440

IPC16 00C4 — CRCIP<2:0> — U2EIP<2:0> — U1EIP<2:0> — — — —

4440

IPC17 00C6 — — — — — C1TXIP<2:0>

(1)

— DMA7IP<2:0> — DMA6IP<2:0>

0444

IPC18 00C8 — QEI2IP<2:0> —FLTA2IP<2:0> — PWM2IP<2:0> — — — —

4440

IPC19 00CA —DAC1LIP<2:0>

(2)

— DAC1RIP<2:0>

(2)

— — — — — — — —

4400

INTTREG 00E0 — — — —ILR<3:0> — VECNUM<6:0>

4444

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

Note 1: Interrupts are disabled on devices without the ECAN™ modules.

2: Interrupts are disabled on devices without a DAC module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-5: TIMER REGISTER MAP

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

TMR1 0100 Timer1 Register

0000

PR1 0102 Period Register 1

FFFF

T1CON 0104 TON

—

TSIDL

——————

TGATE TCKPS<1:0>

—

TSYNC TCS

—

0000

TMR2 0106 Timer2 Register

0000

TMR3HLD 0108 Timer3 Holding Register (for 32-bit timer operations only)

xxxx

TMR3 010A Timer3 Register

0000

PR2 010C Period Register 2

FFFF

PR3 010E Period Register 3

FFFF

T2CON 0110 TON

—

TSIDL

——————

TGATE TCKPS<1:0> T32

—

TCS

—

0000

T3CON 0112 TON

—

TSIDL

——————

TGATE TCKPS<1:0>

— —

TCS

—

0000

TMR4 0114 Timer4 Register

0000

TMR5HLD 0116 Timer5 Holding Register (for 32-bit timer operations only)

xxxx

TMR5 0118 Timer5 Register

0000

PR4 011A Period Register 4

FFFF

PR5 011C Period Register 5

FFFF

T4CON 011E TON

—

TSIDL

——————

TGATE TCKPS<1:0> T32

—

TCS

—

0000

T5CON 0120 TON

—

TSIDL

——————

TGATE TCKPS<1:0>

— —

TCS

—

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-6: INPUT CAPTURE REGISTER MAP

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

IC1BUF 0140 Input 1 Capture Register

xxxx

IC1CON 0142

— —

ICSIDL

— — — — —

ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>

0000

IC2BUF 0144 Input 2 Capture Register

xxxx

IC2CON 0146

— —

ICSIDL

— — — — —

ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>

0000

IC7BUF 0158 Input 7 Capture Register

xxxx

IC7CON 015A

— —

ICSIDL

— — — — —

ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>

0000

IC8BUF 015C Input 8 Capture Register

xxxx

IC8CON 015E

— —

ICSIDL

— — — — —

ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-7: OUTPUT COMPARE REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

OC1RS 0180 Output Compare 1 Secondary Register

xxxx

OC1R 0182 Output Compare 1 Register

xxxx

OC1CON 0184

— —

OCSIDL

— — — — — — — —

OCFLT OCTSEL OCM<2:0>

0000

OC2RS 0186 Output Compare 2 Secondary Register

xxxx

OC2R 0188 Output Compare 2 Register

xxxx

OC2CON 018A

— —

OCSIDL

— — — — — — — —

OCFLT OCTSEL OCM<2:0>

0000

OC3RS 018C Output Compare 3 Secondary Register

xxxx

OC3R 018E Output Compare 3 Register

xxxx

OC3CON 0190

— —

OCSIDL

— — — — — — — —

OCFLT OCTSEL OCM<2:0>

0000

OC4RS 0192 Output Compare 4 Secondary Register

xxxx

OC4R 0194 Output Compare 4 Register

xxxx

OC4CON 0196

— —

OCSIDL

— — — — — — — —

OCFLT OCTSEL OCM<2:0>

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-8: 6-OUTPUT PWM1 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset

State

P1TCON 01C0 PTEN —PTSIDL — — — — — PTOPS<3:0> PTCKPS<1:0> PTMOD<1:0>

0000

P1TMR 01C2 PTDIR PWM Timer Count Value Register

0000

P1TPER 01C4 —PWM Time Base Period Register

0000

P1SECMP 01C6 SEVTDIR PWM Special Event Compare Register

0000

PWM1CON1

01C8 — — — — — PMOD3 PMOD2 PMOD1 — PEN3H PEN2H PEN1H — PEN3L PEN2L PEN1L

00FF

PWM1CON2

01CA — — — —SEVOPS<3:0> — — — — — IUE OSYNC UDIS

0000

P1DTCON1 01CC DTBPS<1:0> DTB<5:0> DTAPS<1:0> DTA<5:0>

0000

P1DTCON2 01CE — — — — — — — — — — DTS3A DTS3I DTS2A DTS2I DTS1A DTS1I

0000

P1FLTACON 01D0 —— FAOV3H FAOV3L FAOV2H FAOV2L FAOV1H FAOV1L FLTAM ———— FAEN3 FAEN2 FAEN1

0000

P1OVDCON 01D4 —— POVD3H POVD3L POVD2H POVD2L POVD1H POVD1L —— POUT3H POUT3L POUT2H POUT2L POUT1H POUT1L

FF00

P1DC1 01D6 PWM Duty Cycle 1 Register

0000

P1DC2 01D8 PWM Duty Cycle 2 Register

0000

P1DC3 01DA PWM Duty Cycle 3 Register

0000

Legend: u = uninitialized bit, — = unimplemented, read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-9: 2-OUTPUT PWM2 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset State

P2TCON 05C0 PTEN —PTSIDL— — — — — PTOPS<3:0> PTCKPS<1:0> PTMOD<1:0> 0000

P2TMR 05C2 PTDIR PWM Timer Count Value Register 0000

P2TPER 05C4 — PWM Time Base Period Register 0000

P2SECMP 05C6 SEVTDIR PWM Special Event Compare Register 0000

PWM2CON1 05C8 — — — — — — —PMOD1— — — PEN1H — — —PEN1L00FF

PWM2CON2 05CA — — — — SEVOPS<3:0> — — — — — IUE OSYNC UDIS 0000

P2DTCON1 05CC DTBPS<1:0> DTB<5:0> DTAPS<1:0> DTA<5:0> 0000

P2DTCON2 05CE — — — — — — — — — — — — — —DTS1ADTS1I0000

P2FLTACON 05D0 — — — — — — FAOV1H FAOV1L FLTAM — — — — — — FAEN1 0000

P2OVDCON 05D4 — — — — — — POVD1H POVD1L — — — — — — POUT1H POUT1L FF00

P2DC1 05D6 PWM Duty Cycle #1 Register 0000

Legend: — = unimplemented, read as ‘0’

TABLE 4-10: QEI1 REGISTER MAP

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset State

QEI1CON 01E0 CNTERR —QEISIDL INDX UPDN QEIM<2:0> SWPAB PCDOUT TQGATE TQCKPS<1:0> POSRES TQCS UPDN_SRC 0000

DFLT1CON 01E2 — — — — — IMV<1:0> CEID QEOUT QECK<2:0> — — — — 0000

POS1CNT 01E4 Position Counter<15:0> 0000

MAX1CNT 01E6 Maximum Count<15:0> FFFF

Legend: — = unimplemented, read as ‘0’

TABLE 4-11: QEI2 REGISTER MAP

SFR

Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Reset State

QEI2CON 01F0 CNTERR —QEISIDL INDX UPDN QEIM<2:0> SWPAB PCDOUT TQGATE TQCKPS<1:0> POSRES TQCS UPDN_SRC 0000

DFLT2CON 01F2 — — — — — IMV<1:0> CEID QEOUT QECK<2:0> — — — — 0000

POS2CNT 01F4 Position Counter<15:0> 0000

MAX2CNT 01F6 Maximum Count<15:0> FFFF

Legend: — = unimplemented, read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-12: I2C1 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 All

Resets

I2C1RCV 0200 — ——————— Receive Register

0000

I2C1TRN 0202 — ——————— Transmit Register

00FF

I2C1BRG 0204 — —————— Baud Rate Generator Register

0000

I2C1CON 0206 I2CEN — I2CSIDL SCLREL IPMIEN A10M DISSLW SMEN GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN

1000

I2C1STAT 0208 ACKSTAT TRSTAT ——— BCL GCSTAT ADD10 IWCOL I2COV D_A P S R_W RBF TBF

0000

I2C1ADD 020A — ————— Address Register

0000

I2C1MSK 020C — ————— Address Mask Register

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-13: UART1 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

U1MODE 0220 UARTEN — USIDL IREN RTSMD — UEN1 UEN0 WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL

0000

U1STA 0222 UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN UTXBF TRMT URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA

0110

U1TXREG 0224 — — — — — — — UTX8 UART Transmit Register

xxxx

U1RXREG 0226 — — — — — — — URX8 UART Received Register

0000

U1BRG 0228 Baud Rate Generator Prescaler

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-14: UART2 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

U2MODE 0230 UARTEN — USIDL IREN RTSMD — UEN1 UEN0 WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL

0000

U2STA 0232 UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN UTXBF TRMT URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA

0110

U2TXREG 0234 — — — — — — — UTX8 UART Transmit Register

xxxx

U2RXREG 0236 — — — — — — — URX8 UART Receive Register

0000

U2BRG 0238 Baud Rate Generator Prescaler

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-15: SPI1 REGISTER MAP

SFR

Name

Addr

Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

SPI1STAT

0240 SPIEN — SPISIDL ——————SPIROV———— SPITBF SPIRBF

0000

SPI1CON1

0242 — — — DISSCK DISSDO MODE16 SMP CKE SSEN CKP MSTEN SPRE<2:0> PPRE<1:0>

0000

SPI1CON2

0244 FRMEN SPIFSD FRMPOL ——————————— FRMDLY —

0000

SPI1BUF

0248 SPI1 Transmit and Receive Buffer Register

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-16: SPI2 REGISTER MAP

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

SPI2STAT

0260 SPIEN

—

SPISIDL

——————

SPIROV

— — — —

SPITBF SPIRBF

0000

SPI2CON1

0262

— — — DISSCK DISSDO MODE16 SMP CKE SSEN CKP MSTEN SPRE<2:0> PPRE<1:0>

0000

SPI2CON2

0264 FRMEN SPIFSD FRMPOL

———————————

FRMDLY

—

0000

SPI2BUF

0268 SPI2 Transmit and Receive Buffer

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-17: ADC1 REGISTER MAP FOR dsPIC33FJ64MC202/802, dsPIC33FJ128MC202/802 AND dsPIC33FJ32MC302

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

ADC1BUF0 0300 ADC Data Buffer 0 xxxx

AD1CON1 0320 ADON — ADSIDL ADDMABM — AD12B FORM<1:0> SSRC<2:0> — SIMSAM ASAM SAMP DONE 0000

AD1CON2 0322 VCFG<2:0> —— CSCNA CHPS<1:0> BUFS — SMPI<3:0> BUFM ALTS 0000

AD1CON3 0324 ADRC — — SAMC<4:0> ADCS<7:0> 0000

AD1CHS123 0326 — — — — — CH123NB<1:0> CH123SB — — — — — CH123NA<1:0> CH123SA 0000

AD1CHS0 0328 CH0NB —— CH0SB<4:0> CH0NA —— CH0SA<4:0> 0000

AD1PCFGL 032C — — — — — — — — — — PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000

AD1CSSL 0330 — — — — — — — — — — CSS5 CSS4 CSS3 CSS2 CSS1 CSS0 0000

AD1CON4 0332 — — — — — — — — — — — — — DMABL<2:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-18: ADC1 REGISTER MAP FOR dsPIC33FJ64MC204/804, dsPIC33FJ128MC204/804 AND dsPIC33FJ32MC304

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

ADC1BUF0 0300 ADC Data Buffer 0 xxxx

AD1CON1 0320 ADON — ADSIDL ADDMABM — AD12B FORM<1:0> SSRC<2:0> — SIMSAM ASAM SAMP DONE 0000

AD1CON2 0322 VCFG<2:0> —— CSCNA CHPS<1:0> BUFS — SMPI<3:0> BUFM ALTS 0000

AD1CON3 0324 ADRC — — SAMC<4:0> ADCS<7:0> 0000

AD1CHS123 0326 — — — — — CH123NB<1:0> CH123SB — — — — — CH123NA<1:0> CH123SA 0000

AD1CHS0 0328 CH0NB —— CH0SB<4:0> CH0NA —— CH0SA<4:0> 0000

AD1PCFGL 032C — — — — — — — PCFG8 PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0 0000

AD1CSSL 0330 — — — — — — — CSS8 CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0 0000

AD1CON4 0332 — — — — — — — — — — — — — DMABL<2:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-19: DAC1 REGISTER MAP FOR dsPIC33FJ128MC804 AND dsPIC33FJ64MC804

SFR Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

DAC1CON 03F0 DACEN — DACSIDL AMPON — — —FORM— DACFDIV<6:0> 0000

DAC1STAT 03F2 LOEN —LMVOEN—— LITYPE LFULL LEMPTY ROEN —RMVOEN——RITYPERFULLREMPTY

0000

DAC1DFLT 03F4 DAC1DFLT<15:0> 0000

DAC1RDAT 03F6 DAC1RDAT<15:0> 0000

DAC1LDAT 03F8 DAC1LDAT<15:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-20: DMA REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

DMA0CON 0380 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA0REQ 0382 FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA0STA 0384 STA<15:0> 0000

DMA0STB 0386 STB<15:0> 0000

DMA0PAD 0388 PAD<15:0> 0000

DMA0CNT 038A — — — — — — CNT<9:0> 0000

DMA1CON 038C CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA1REQ 038E FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA1STA 0390 STA<15:0> 0000

DMA1STB 0392 STB<15:0> 0000

DMA1PAD 0394 PAD<15:0> 0000

DMA1CNT 0396 — — — — — — CNT<9:0> 0000

DMA2CON 0398 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA2REQ 039A FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA2STA 039C STA<15:0> 0000

DMA2STB 039E STB<15:0> 0000

DMA2PAD 03A0 PAD<15:0> 0000

DMA2CNT 03A2 — — — — — — CNT<9:0> 0000

DMA3CON 03A4 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA3REQ 03A6 FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA3STA 03A8 STA<15:0> 0000

DMA3STB 03AA STB<15:0> 0000

DMA3PAD 03AC PAD<15:0> 0000

DMA3CNT 03AE — — — — — — CNT<9:0> 0000

DMA4CON 03B0 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA4REQ 03B2 FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA4STA 03B4 STA<15:0> 0000

DMA4STB 03B6 STB<15:0> 0000

DMA4PAD 03B8 PAD<15:0> 0000

DMA4CNT 03BA — — — — — — CNT<9:0> 0000

DMA5CON 03BC CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA5REQ 03BE FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA5STA 03C0 STA<15:0> 0000

DMA5STB 03C2 STB<15:0> 0000

Legend: — = unimplemented, read as ‘0’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

DMA5PAD 03C4 PAD<15:0> 0000

DMA5CNT 03C6 — — — — — — CNT<9:0> 0000

DMA6CON 03C8 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA6REQ 03CA FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA6STA 03CC STA<15:0> 0000

DMA6STB 03CE STB<15:0> 0000

DMA6PAD 03D0 PAD<15:0> 0000

DMA6CNT 03D2 — — — — — — CNT<9:0> 0000

DMA7CON 03D4 CHEN SIZE DIR HALF NULLW — — — — —AMODE<1:0> —— MODE<1:0> 0000

DMA7REQ 03D6 FORCE — — — — — — — — IRQSEL<6:0> 0000

DMA7STA 03D8 STA<15:0> 0000

DMA7STB 03DA STB<15:0> 0000

DMA7PAD 03DC PAD<15:0> 0000

DMA7CNT 03DE — — — — — — CNT<9:0> 0000

DMACS0 03E0 PWCOL7 PWCOL6 PWCOL5 PWCOL4 PWCOL3 PWCOL2 PWCOL1 PWCOL0 XWCOL7 XWCOL6 XWCOL5 XWCOL4 XWCOL3 XWCOL2 XWCOL1 XWCOL0 0000

DMACS1 03E2 — — — — LSTCH<3:0> PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0 0000

DSADR 03E4 DSADR<15:0> 0000

TABLE 4-20: DMA REGISTER MAP (CONTINUED)

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

Legend: — = unimplemented, read as ‘0’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-21: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 OR 1 (FOR dsPIC33FJ128MC802/804 AND dsPIC33FJ64MC802/804)

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

C1CTRL1 0400 —— CSIDL ABAT — REQOP<2:0> OPMODE<2:0> — CANCAP ——WIN0480

C1CTRL2 0402 — — — — — — — — — — — DNCNT<4:0> 0000

C1VEC 0404 — — — FILHIT<4:0> —ICODE<6:0>0000

C1FCTRL 0406 DMABS<2:0> — — — — — — — — FSA<4:0> 0000

C1FIFO 0408 —— FBP<5:0> —— FNRB<5:0> 0000

C1INTF 040A —— TXBO TXBP RXBP TXWAR RXWAR EWARN IVRIF WAKIF ERRIF — FIFOIF RBOVIF RBIF TBIF 0000

C1INTE 040C — — — — — — — — IVRIE WAKIE ERRIE — FIFOIE RBOVIE RBIE TBIE 0000

C1EC 040E TERRCNT<7:0> RERRCNT<7:0> 0000

C1CFG1 0410 — — — — — — — — SJW<1:0> BRP<5:0> 0000

C1CFG2 0412 —WAKFIL— — — SEG2PH<2:0> SEG2PHTS SAM SEG1PH<2:0> PRSEG<2:0> 0000

C1FEN1 0414

FLTEN15 FLTEN14 FLTEN13 FLTEN12 FLTEN11 FLTEN10 FLTEN9 FLTEN8 FLTEN7 FLTEN6 FLTEN5 FLTEN4 FLTEN3 FLTEN2 FLTEN1 FLTEN0

FFFF

C1FMSKSEL1 0418 F7MSK<1:0> F6MSK<1:0> F5MSK<1:0> F4MSK<1:0> F3MSK<1:0> F2MSK<1:0> F1MSK<1:0> F0MSK<1:0> 0000

C1FMSKSEL2 041A F15MSK<1:0> F14MSK<1:0> F13MSK<1:0> F12MSK<1:0> F11MSK<1:0> F10MSK<1:0> F9MSK<1:0> F8MSK<1:0> 0000

Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-22: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 0 (FOR dsPIC33FJ128MC802/804 AND dsPIC33FJ64MC802/804)

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

0400-

041E

See definition when WIN = x

C1RXFUL1 0420 RXFUL15 RXFUL14 RXFUL13 RXFUL12 RXFUL11 RXFUL10 RXFUL9 RXFUL8 RXFUL7 RXFUL6 RXFUL5 RXFUL4 RXFUL3 RXFUL2 RXFUL1 RXFUL0 0000

C1RXFUL2 0422 RXFUL31 RXFUL30 RXFUL29 RXFUL28 RXFUL27 RXFUL26 RXFUL25 RXFUL24 RXFUL23 RXFUL22 RXFUL21 RXFUL20 RXFUL19 RXFUL18 RXFUL17 RXFUL16 0000

C1RXOVF1 0428 RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF9 RXOVF8 RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0 0000

C1RXOVF2 042A RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24 RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16 0000

C1TR01CON 0430

TXEN1 TXABT1 TXLARB1 TXERR1 TXREQ1 RTREN1 TX1PRI<1:0> TXEN0 TXABT0 TXLARB0 TXERR0 TXREQ0 RTREN0 TX0PRI<1:0>

0000

C1TR23CON 0432

TXEN3 TXABT3 TXLARB3 TXERR3 TXREQ3 RTREN3 TX3PRI<1:0> TXEN2 TXABT2 TXLARB2 TXERR2 TXREQ2 RTREN2 TX2PRI<1:0>

0000

C1TR45CON 0434

TXEN5 TXABT5 TXLARB5 TXERR5 TXREQ5 RTREN5 TX5PRI<1:0> TXEN4 TXABT4 TXLARB4 TXERR4 TXREQ4 RTREN4 TX4PRI<1:0>

0000

C1TR67CON 0436

TXEN7 TXABT7 TXLARB7 TXERR7 TXREQ7 RTREN7 TX7PRI<1:0> TXEN6 TXABT6 TXLARB6 TXERR6 TXREQ6 RTREN6 TX6PRI<1:0>

0000

C1RXD 0440 Received Data Word xxxx

C1TXD 0442 Transmit Data Word xxxx

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-23: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1 (FOR dsPIC33FJ128MC802/804 AND dsPIC33FJ64MC802/804)

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

0400-

041E

See definition when WIN = x

C1BUFPNT1 0420 F3BP<3:0> F2BP<3:0> F1BP<3:0> F0BP<3:0> 0000

C1BUFPNT2 0422 F7BP<3:0> F6BP<3:0> F5BP<3:0> F4BP<3:0> 0000

C1BUFPNT3 0424 F11BP<3:0> F10BP<3:0> F9BP<3:0> F8BP<3:0> 0000

C1BUFPNT4 0426 F15BP<3:0> F14BP<3:0> F13BP<3:0> F12BP<3:0> 0000

C1RXM0SID 0430 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx

C1RXM0EID 0432 EID<15:8> EID<7:0> xxxx

C1RXM1SID 0434 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx

C1RXM1EID 0436 EID<15:8> EID<7:0> xxxx

C1RXM2SID 0438 SID<10:3> SID<2:0> —MIDE— EID<17:16> xxxx

C1RXM2EID 043A EID<15:8> EID<7:0> xxxx

C1RXF0SID 0440 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF0EID 0442 EID<15:8> EID<7:0> xxxx

C1RXF1SID 0444 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF1EID 0446 EID<15:8> EID<7:0> xxxx

C1RXF2SID 0448 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF2EID 044A EID<15:8> EID<7:0> xxxx

C1RXF3SID 044C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF3EID 044E EID<15:8> EID<7:0> xxxx

C1RXF4SID 0450 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF4EID 0452 EID<15:8> EID<7:0> xxxx

C1RXF5SID 0454 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF5EID 0456 EID<15:8> EID<7:0> xxxx

C1RXF6SID 0458 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF6EID 045A EID<15:8> EID<7:0> xxxx

C1RXF7SID 045C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF7EID 045E EID<15:8> EID<7:0> xxxx

C1RXF8SID 0460 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF8EID 0462 EID<15:8> EID<7:0> xxxx

C1RXF9SID 0464 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF9EID 0466 EID<15:8> EID<7:0> xxxx

C1RXF10SID 0468 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF10EID 046A EID<15:8> EID<7:0> xxxx

C1RXF11SID 046C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

C1RXF11EID 046E EID<15:8> EID<7:0> xxxx

C1RXF12SID 0470 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF12EID 0472 EID<15:8> EID<7:0> xxxx

C1RXF13SID 0474 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF13EID 0476 EID<15:8> EID<7:0> xxxx

C1RXF14SID 0478 SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF14EID 047A EID<15:8> EID<7:0> xxxx

C1RXF15SID 047C SID<10:3> SID<2:0> —EXIDE— EID<17:16> xxxx

C1RXF15EID 047E EID<15:8> EID<7:0> xxxx

TABLE 4-23: ECAN1 REGISTER MAP WHEN C1CTRL1.WIN = 1 (FOR dsPIC33FJ128MC802/804 AND dsPIC33FJ64MC802/804) (CONTINUED)

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-24: PERIPHERAL PIN SELECT INPUT REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

RPINR0 0680 — — — INT1R<4:0> — — — — — — — — 1F00

RPINR1 0682 — — — — — — — — — — —INT2R<4:0>

001F

RPINR3 0686 — — —T3CKR<4:0>— — —T2CKR<4:0>

1F1F

RPINR4 0688 — — —T5CKR<4:0>— — —T4CKR<4:0>

1F1F

RPINR7 068E — — — IC2R<4:0> — — — IC1R<4:0> 1F1F

RPINR10 0694 — — — IC8R<4:0> — — — IC7R<4:0> 1F1F

RPINR11 0696 — — — — — — — — — — —OCFAR<4:0>

001F

RPINR12 0698 — — — — — — — — — — — FLTA1R<4:0> 001F

RPINR13 069A — — — — — — — — — — — FLTA2R<4:0> 001F

RPINR14 069C — — — QEB1R<4:0> — — —QEA1R<4:0>

1F1F

RPINR15 069E — — — — — — — — — — — INDX1R<4:0> 001F

RPINR16 06A0 — — — QEB2R<4:0> — — —QEA2R<4:0>

1F1F

RPINR17 06A2 — — — — — — — — — — — INDX2R<4:0> 001F

RPINR18 06A4 — — — U1CTSR<4:0> — — —U1RXR<4:0>

1F1F

RPINR19 06A6 — — — U2CTSR<4:0> — — —U2RXR<4:0>

1F1F

RPINR20 06A8 — — —SCK1R<4:0>— — —SDI1R<4:0>

1F1F

RPINR21 06AA — — — — — — — — — — — SS1R<4:0> 001F

RPINR22 06AC — — —SCK2R<4:0>— — —SDI2R<4:0>

1F1F

RPINR23 06AE — — — — — — — — — — — SS2R<4:0> 001F

RPINR26(1) 06B4 — — — — — — — — — — —C1RXR<4:0>

001F

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

Note 1: This register is present in dsPIC33FJ128MC802/804 and dsPIC33FJ64MC802/804 devices only.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-25: PERIPHERAL PIN SELECT OUTPUT REGISTER MAP FOR dsPIC33FJ128MC202/802, dsPIC33FJ64MC202/802 AND

dsPIC33FJ32MC302

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

RPOR0 06C0 — — — RP1R<4:0> ——— RP0R<4:0> 0000

RPOR1 06C2 — — — RP3R<4:0> ——— RP2R<4:0> 0000

RPOR2 06C4 — — — RP5R<4:0> ——— RP4R<4:0> 0000

RPOR3 06C6 — — — RP7R<4:0> ——— RP6R<4:0> 0000

RPOR4 06C8 — — — RP9R<4:0> ——— RP8R<4:0> 0000

RPOR5 06CA — — —RP11R<4:0>——— RP10R<4:0> 0000

RPOR6 06CC — — —RP13R<4:0>——— RP12R<4:0> 0000

RPOR7 06CE — — —RP15R<4:0>——— RP14R<4:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’.

TABLE 4-26: PERIPHERAL PIN SELECT OUTPUT REGISTER MAP FOR dsPIC33FJ128MC204/804, dsPIC33FJ64MC204/804 AND

dsPIC33FJ32MC304

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

RPOR0 06C0 — — — RP1R<4:0> ——— RP0R<4:0> 0000

RPOR1 06C2 — — — RP3R<4:0> ——— RP2R<4:0> 0000

RPOR2 06C4 — — — RP5R<4:0> ——— RP4R<4:0> 0000

RPOR3 06C6 — — — RP7R<4:0> ——— RP6R<4:0> 0000

RPOR4 06C8 — — — RP9R<4:0> ——— RP8R<4:0> 0000

RPOR5 06CA — — —RP11R<4:0>——— RP10R<4:0> 0000

RPOR6 06CC — — —RP13R<4:0>——— RP12R<4:0> 0000

RPOR7 06CE — — —RP15R<4:0>——— RP14R<4:0> 0000

RPOR8 06D0 — — —RP17R<4:0>——— RP16R<4:0> 0000

RPOR9 06D2 — — —RP19R<4:0>——— RP18R<4:0> 0000

RPOR10 06D4 — — —RP21R<4:0>——— RP20R<4:0> 0000

RPOR11 06D6 — — —RP23R<4:0>——— RP22R<4:0> 0000

RPOR12 06D8 — — —RP25R<4:0>——— RP24R<4:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-27: PARALLEL MASTER/SLAVE PORT REGISTER MAP FOR dsPIC33FJ128MC202/802, dsPIC33FJ64MC202/802 AND

dsPIC33FJ32MC302

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

PMCON 0600 PMPEN

—

PSIDL ADRMUX<1:0>

PTBEEN PTWREN PTRDEN

CSF1 CSF0 ALP

—

CS1P BEP WRSP RDSP

0000

PMMODE 0602

BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0> WAITB<1:0> WAITM<3:0> WAITE<1:0>

0000

PMADDR

0604

ADDR15 CS1 ADDR<13:0>

0000

PMDOUT1

Parallel Port Data Out Register 1 (Buffers 0 and 1)

0000

PMDOUT2 0606 Parallel Port Data Out Register 2 (Buffers 2 and 3)

0000

PMDIN1 0608 Parallel Port Data In Register 1 (Buffers 0 and 1)

0000

PMPDIN2 060A Parallel Port Data In Register 2 (Buffers 2 and 3)

0000

PMAEN 060C

—PTEN14— — — — — — — — — — — — PTEN<1:0>

0000

PMSTAT 060E

IBF IBOV —— IB3F IB2F IB1F IB0F OBE OBUF —— OB3E OB2E OB1E OB0E

008F

Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-28: PARALLEL MASTER/SLAVE PORT REGISTER MAP FOR dsPIC33FJ128MC204/804, dsPIC33FJ64MC204/804 AND

dsPIC33FJ32MC304

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

PMCON

0600 PMPEN — PSIDL ADRMUX<1:0> PTBEEN PTWREN PTRDEN CSF1 CSF0 ALP — CS1P BEP WRSP RDSP 0000

PMMODE

0602 BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0> WAITB<1:0> WAITM<3:0> WAITE<1:0> 0000

PMADDR 0604 ADDR15 CS1 ADDR<13:0> 0000

PMDOUT1 Parallel Port Data Out Register 1 (Buffers 0 and 1) 0000

PMDOUT2

0606 Parallel Port Data Out Register 2 (Buffers 2 and 3) 0000

PMDIN1

0608 Parallel Port Data In Register 1 (Buffers 0 and 1) 0000

PMPDIN2

060A Parallel Port Data In Register 2 (Buffers 2 and 3) 0000

PMAEN

060C —PTEN14— — — PTEN<10:0> 0000

PMSTAT

060E IBF IBOV —— IB3F IB2F IB1F IB0F OBE OBUF —— OB3E OB2E OB1E OB0E 008F

Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-29: REAL-TIME CLOCK AND CALENDAR REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

ALRMVAL 0620 Alarm Value Register Window based on APTR<1:0> xxxx

ALCFGRPT 0622 ALRMEN CHIME AMASK<3:0> ALRMPTR<1:0> ARPT<7:0> 0000

RTCVAL 0624 RTCC Value Register Window based on RTCPTR<1:0> xxxx

RCFGCAL 0626 RTCEN — RTCWREN RTCSYNC HALFSEC RTCOE RTCPTR<1:0> CAL<7:0> 0000

PADCFG1 02FC — — — — — — — — — — — — — — RTSECSEL PMPTTL

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-30: CRC REGISTER MAP

File NameAddrBit 15Bit 14Bit 13Bit 12Bit 11Bit 10Bit 9Bit 8Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0 All

Resets

CRCCON

0640 —— CSIDL VWORD<4:0> CRCFUL CRCMPT — CRCGO PLEN<3:0> 0000

CRCXOR

0642 X<15:0> 0000

CRCDAT

0644 CRC Data Input Register 0000

CRCWDAT

0646 CRC Result Register 0000

Legend: — = unimplemented, read as ‘0’.

TABLE 4-31: DUAL COMPARATOR REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

CMCON 0630

CMIDL — C2EVT C1EVT C2EN C1EN C2OUTEN C1OUTEN C2OUT C1OUT C2INV C1INV C2NEG C2POS C1NEG C1POS

0000

CVRCON 0632

— — — — — — — — CVREN CVROE CVRR CVRSS CVR<3:0>

0000

Legend: — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-32: PORTA REGISTER MAP FOR dsPIC33FJ128MC202/802, dsPIC33FJ64MC202/802 AND dsPIC33FJ32MC302

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

TRISA

02C0 — — — — — — — — — — — TRISA4 TRISA3 TRISA2 TRISA1 TRISA0

001F

PORTA

02C2 — — — — —

— — — —

—— RA4 RA3 RA2 RA1 RA0

xxxx

LATA

02C4 — — — — — — — — — — — LATA4 LATA3 LATA2 LATA1 LATA0

xxxx

ODCA

02C6

— — — — — — — — — — — — — — — —

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-33: PORTA REGISTER MAP FOR dsPIC33FJ128MC204/804, dsPIC33FJ64MC204/804 AND dsPIC33FJ32MC304

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

TRISA

02C0 — — — — — TRISA10 TRISA9 TRISA8 TRISA7 —— TRISA4 TRISA3 TRISA2 TRISA1 TRISA0

001F

PORTA

02C2 — — — — — RA10 RA9 RA8 RA7 —— RA4 RA3 RA2 RA1 RA0

xxxx

LATA

02C4 — — — — — LATA10 LATA9 LATA8 LATA7 —— LATA4 LATA3 LATA2 LATA1 LATA0

xxxx

ODCA

02C6

— — — — —

ODCA10 ODCA9 ODCA8 ODCA7

— — — — — — —

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-34: PORTB REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

TRISB 02C8 TRISB15 TRISB14 TRISB13 TRISB12 TRISB11 TRISB10 TRISB9 TRISB8 TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0

FFFF

PORTB 02CA RB15 RB14 RB13 RB12 RB11 RB10 RB9 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0

xxxx

LATB 02CC LATB15 LATB14 LATB13 LATB12 LATB11 LATB10 LATB9 LATB8 LATB7 LATB6 LATB5 LATB4 LAT B3 LATB2 LATB1 LATB0

xxxx

ODCB 02CE

— — — —

ODCB11 ODCB10 ODCB9 ODCB8 ODCB7 ODCB6 ODCB5

— — — — —

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-35: PORTC REGISTER MAP FOR dsPIC33FJ128MC204/804, dsPIC33FJ64MC204/804 AND dsPIC33FJ32MC304

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

TRISC 02D0

— — — — — —

TRISC9 TRISC8 TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0

03FF

PORTC 02D2

— — — — — —

RC9 RC8 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0

xxxx

LATC 02D4

— — — — — —

LATC9 LATC8 LATC7 LATC6 LATC5 LATC4 LATC3 LATC2 LATC1 LATC0

xxxx

ODCC 02D6

— — — — — —

ODCC9 ODCC8 ODCC7 ODCC6 ODCC5 ODCC4 ODCC3

— — —

0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

TABLE 4-36: SYSTEM CONTROL REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

RCON 0740 TRAPR IOPUWR — — — — CM VREGS EXTR SWR SWDTEN WDTO SLEEP IDLE BOR POR xxxx(1)

OSCCON 0742 — COSC<2:0> — NOSC<2:0> CLKLOCK IOLOCK LOCK —CF— LPOSCEN OSWEN 0300(2)

CLKDIV 0744 ROI DOZE<2:0> DOZEN FRCDIV<2:0> PLLPOST<1:0> — PLLPRE<4:0> 3040

PLLFBD 0746 — — — — — — — PLLDIV<8:0> 0030

OSCTUN 0748 — — — — — — — — — — TUN<5:0> 0000

ACLKCON 074A —— SELACLK AOSCMD<1:0> APSTSCLR<2:0> ASRCSEL — — — — — — — 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’. Reset values are shown in hexadecimal.

Note 1: The RCON register Reset values are dependent on the type of Reset.

2: The OSCCON register Reset values are dependent on the FOSC Configuration bits and the type of Reset.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-37: SECURITY REGISTER MAP FOR dsPIC33FJ128MC204/804 AND dsPIC33FJ64MC204/804 ONLY

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

BSRAM 0750 — — — — — — — — — — — — — IW_BSR IR_BSR RL_BSR 0000

SSRAM 0752 — — — — — — — — — — — — — IW_ SSR IR_SSR RL_SSR 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’.

TABLE 4-38: NVM REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

NVMCON 0760 WR WREN WRERR ——————ERASE—— NVMOP<3:0> 0000

NVMKEY 0766 ———————— NVMKEY<7:0> 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’.

TABLE 4-39: PMD REGISTER MAP

File Name Addr Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 All

Resets

PMD1 0770 T5MD T4MD T3MD T2MD T1MD QEI1MD PWM1MD —I2C1MD U2MD U1MD SPI2MD SPI1MD —C1MD AD1MD 0000

PMD2 0772 IC8MD IC7MD — — — —IC2MDIC1MD— — — — OC4MD OC3MD OC2MD OC1MD 0000

PMD3 0774 — — — — — CMPMD RTCCMD PMPMD CRCMD DAC1MD QEI2MD PWM2MD — — — — 0000

Legend: x = unknown value on Reset, — = unimplemented, read as ‘0’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.4.1 SOFTWARE STACK

In addition to its use as a working register, the W15

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 devices is also used as a software Stack Pointer.

The Stack Pointer always points to the first available

free word and grows from lower to higher addresses. It

pre-decrements for stack pops and post-increments for

stack pushes, as shown in Figure 4-6. For a PC push

during any CALL instruction, the MSb of the PC is

zero-extended before the push, ensuring that the MSb

is always clear.

The Stack Pointer Limit register (SPLIM) associated

with the Stack Pointer sets an upper address boundary

for the stack. The SPLIM is uninitialized at Reset. As is

the case for the Stack Pointer, the SPLIM<0> is forced

to ‘0’ because all stack operations must be word

aligned.

Whenever an EA is generated using the W15 as a

source or destination pointer, the resulting address is

compared with the value in the SPLIM register. If the

contents of the Stack Pointer (W15) and the SPLIM reg-

ister are equal and a push operation is performed, a

stack error trap does not occur. The stack error trap

occurs on a subsequent push operation. For example,

to cause a stack error trap when the stack grows

beyond address 0x2000 in RAM, initialize the SPLIM

with the value 0x1FFE.

Similarly, a Stack Pointer underflow (stack error) trap is

generated when the Stack Pointer address is found to

be less than 0x0800. This prevents the stack from

interfering with the Special Function Register (SFR)

space.

A write to the SPLIM register should not be immediately

followed by an indirect read operation using W15.

FIGURE 4-6: CALL STACK FRAME

4.4.2 DATA RAM PROTECTION FEATURE

The dsPIC33F product family supports Data RAM

protection features that enable segments of RAM to be

protected when used in conjunction with Boot and

Secure Code Segment Security. The BSRAM (Secure

RAM segment for BS) is accessible only from the Boot

Segment Flash code when enabled. The SSRAM

(Secure RAM segment for RAM) is accessible only

from the Secure Segment Flash code when enabled.

See Table 4-1 for an overview of the BSRAM and

SSRAM SFRs.

4.5 Instruction Addressing Modes

The addressing modes shown in Table 4-40 form the

basis of the addressing modes optimized to support the

specific features of individual instructions. The

addressing modes provided in the MAC class of

instructions differ from those in the other instruction

types.

4.5.1 FILE REGISTER INSTRUCTIONS

Most file register instructions use a 13-bit address field

(f) to directly address data present in the first 8192

bytes of data memory (near data space). Most file

which is denoted as WREG in these instructions. The

destination is typically either the same file register or

WREG (with the exception of the MUL instruction),

which writes the result to a register or register pair. The

MOV instruction allows additional flexibility and can

access the entire data space.

4.5.2 MCU INSTRUCTIONS

The three-operand MCU instructions are of the form:

Operand 3 = Operand 1 <function> Operand 2

where:

Operand 1 is always a working register (that is, the

addressing mode can only be register direct), which is

referred to as Wb.

Operand 2 can be a W register, fetched from data

memory, or a 5-bit literal. The result location can be

either a W register or a data memory location. The

following addressing modes are supported by MCU

instructions:

• Register Direct

• Register Indirect

• Register Indirect Post-Modified

• Register Indirect Pre-Modified

• 5-bit or 10-bit Literal

Note: A PC push during exception processing

concatenates the SRL register to the MSb

of the PC prior to the push.

PC<15:0>

000000000

015

W15 (before CALL)

W15 (after CALL)

Stack Grows Towards

Higher Address

0x0000

PC<22:16>

POP : [--W15]

PUSH : [W15++]

Note: Not all instructions support all the

addressing modes listed above.

Individual instructions can support

different subsets of these addressing

modes.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 4-40: FUNDAMENTAL ADDRESSING MODES SUPPORTED

4.5.3 MOVE AND ACCUMULATOR

INSTRUCTIONS

Move instructions and the DSP accumulator class of

instructions provide a greater degree of addressing

flexibility than any other instructions. In addition to the

addressing modes supported by most MCU

instructions, move and accumulator instructions also

support Register Indirect with Register Offset

Addressing mode, also referred to as Register Indexed

mode.

In summary, the following addressing modes are

supported by move and accumulator instructions:

• Register Direct

• Register Indirect

• Register Indirect Post-Modified

• Register Indirect Pre-Modified

• Register Indirect with Register Offset (Indexed)

• Register Indirect with Literal Offset

• 8-bit Literal

• 16-bit Literal

4.5.4 MAC INSTRUCTIONS

The dual source operand DSP instructions (CLR, ED,

EDAC, MAC, MPY, MPY.N, MOVSAC and MSC), also referred

to as MAC instructions, use a simplified set of addressing

modes to allow the user application to effectively

manipulate the data pointers through register indirect

tables.

The two-source operand prefetch registers must be

members of the set {W8, W9, W10, W11}. For data

reads, W8 and W9 are always directed to the X RAGU,

and W10 and W11 are always directed to the Y AGU.

The effective addresses generated (before and after

modification) must, therefore, be valid addresses within

X data space for W8 and W9 and Y data space for W10

and W11.

In summary, the following addressing modes are

supported by the MAC class of instructions:

• Register Indirect

• Register Indirect Post-Modified by 2

• Register Indirect Post-Modified by 4

• Register Indirect Post-Modified by 6

• Register Indirect with Register Offset (Indexed)

4.5.5 OTHER INSTRUCTIONS

Apart from the addressing modes outlined previously,

some instructions use literal constants of various sizes.

For example, BRA (branch) instructions use 16-bit signed

literals to specify the branch destination directly,

whereas, the DISI instruction uses a 14-bit unsigned

literal field. In some instructions, such as ADD Acc, the

source of an operand or result is implied by the opcode

itself. Certain operations, such as NOP, do not have any

operands.

Addressing Mode Description

File Register Direct The address of the file register is specified explicitly.

or decremented) by a constant value.

to form the EA.

(Register Indexed)

The sum of Wn and Wb forms the EA.

Note: For the MOV instructions, the addressing

mode specified in the instruction can differ

for the source and destination EA.

However, the 4-bit Wb (Register Offset)

field is shared by both source and

destination (but typically only used by

one).

Note: Not all instructions support all the

addressing modes listed above. Individual

instructions may support different subsets

of these addressing modes.

Note: Register Indirect with Register Offset

Addressing mode is available only for W9

(in X space) and W11 (in Y space).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.6 Modulo Addressing

Modulo Addressing mode is a method of providing an

automated means to support circular data buffers using

hardware. The objective is to remove the need for

software to perform data address boundary checks

when executing tightly looped code, as is typical in

many DSP algorithms.

Modulo Addressing can operate in either data or program

space (because the data pointer mechanism is

essentially the same for both). One circular buffer can be

supported in each of the X (which also provides the

pointers into program space) and Y data spaces. Modulo

Addressing can operate on any W register pointer.

However, it is not advisable to use W14 or W15 for

Modulo Addressing as these two registers are used as

the Stack Frame Pointer and Stack Pointer, respectively.

In general, any particular circular buffer can be

configured to operate in only one direction as there are

certain restrictions on the buffer start address (for incre-

menting buffers), or end address (for decrementing

buffers), based upon the direction of the buffer.

The only exception to the usage restrictions is for

buffers that have a power-of-two length. As these

buffers satisfy the start and end address criteria, they

can operate in a bidirectional mode (that is, address

boundary checks are performed on both the lower and

upper address boundaries).

4.6.1 START AND END ADDRESS

The Modulo Addressing scheme requires that a

starting and ending address be specified and loaded

into the 16-bit Modulo Buffer Address registers:

XMODSRT, XMODEND, YMODSRT and YMODEND

(see Table 4-1).

The length of a circular buffer is not directly specified. It

is determined by the difference between the

corresponding start and end addresses. The maximum

possible length of the circular buffer is 32K words

(64 Kbytes).

4.6.2 W ADDRESS REGISTER

SELECTION

The Modulo and Bit-Reversed Addressing Control

as a W register field to specify the W Address registers.

The XWM and YWM fields select the registers that

operate with Modulo Addressing:

•If XWM = 15, X RAGU and X WAGU Modulo

Addressing is disabled

•If YWM = 15, Y AGU Modulo Addressing is

disabled

The X Address Space Pointer W register (XWM), to

which Modulo Addressing is to be applied, is stored in

MODCON<3:0> (see Table 4-1). Modulo Addressing is

enabled for X data space when XWM is set to any value

other than ‘15’ and the XMODEN bit is set at

MODCON<15>.

The Y Address Space Pointer W register (YWM) to

which Modulo Addressing is to be applied is stored in

MODCON<7:4>. Modulo Addressing is enabled for Y

data space when YWM is set to any value other than

‘15’ and the YMODEN bit is set at MODCON<14>.

FIGURE 4-7: MODULO ADDRESSING OPERATION EXAMPLE

Note: Y space Modulo Addressing EA

calculations assume word-sized data

(LSb of every EA is always clear).

0x1100

0x1163

Start Addr = 0x1100

End Addr = 0x1163

Length = 0x0032 words

Byte

Address

MOV #0x1100, W0

MOV W0, XMODSRT ;set modulo start address

MOV #0x1163, W0

MOV W0, MODEND ;set modulo end address

MOV #0x8001, W0

MOV W0, MODCON ;enable W1, X AGU for modulo

MOV #0x0000, W0 ;W0 holds buffer fill value

MOV #0x1110, W1 ;point W1 to buffer

DO AGAIN, #0x31 ;fill the 50 buffer locations

MOV W0, [W1++] ;fill the next location

AGAIN: INC W0, W0 ;increment the fill value

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.6.3 MODULO ADDRESSING

APPLICABILITY

Modulo Addressing can be applied to the Effective

Address (EA) calculation associated with any W

equal to:

• The upper boundary addresses for incrementing

buffers

• The lower boundary addresses for decrementing

buffers

It is important to realize that the address boundaries

check for addresses less than or greater than the upper

(for incrementing buffers) and lower (for decrementing

buffers) boundary addresses (not just equal to).

Address changes can, therefore, jump beyond

boundaries and still be adjusted correctly.

4.7 Bit-Reversed Addressing

Bit-Reversed Addressing mode is intended to simplify

data reordering for radix-2 FFT algorithms. It is

supported by the X AGU for data writes only.

The modifier, which can be a constant value or register

contents, is regarded as having its bit order reversed.

The address source and destination are kept in normal

order. Therefore, the only operand requiring reversal is

the modifier.

4.7.1 BIT-REVERSED ADDRESSING

IMPLEMENTATION

Bit-Reversed Addressing mode is enabled in any of

these situations:

• The BWM bits (W register selection) in the

MODCON register are any value other than ‘15’

(the stack cannot be accessed using

Bit-Reversed Addressing)

• The BREN bit is set in the XBREV register

• The addressing mode used is Register Indirect

with Pre-Increment or Post-Increment

If the length of a bit-reversed buffer is M = 2N bytes,

the last ‘N’ bits of the data buffer start address must

be zeros.

The XB<14:0> bits is the Bit-Reversed Address

modifier, or pivot point, which is typically a constant. In

the case of an FFT computation, its value is equal to

half of the FFT data buffer size.

When enabled, Bit-Reversed Addressing is executed

only for Register Indirect with Pre-Increment or

Post-Increment Addressing and word-sized data

writes. It does not function for any other addressing

mode or for byte-sized data, and normal addresses are

generated instead. When Bit-Reversed Addressing is

active, the W Address Pointer is always added to the

address modifier (XB), and the offset associated with

the Register Indirect Addressing mode is ignored. In

addition, as word-sized data is a requirement, the LSb

of the EA is ignored (and always clear).

If Bit-Reversed Addressing has already been enabled

by setting the BREN bit (XBREV<15>), a write to the

XBREV register should not be immediately followed by

an indirect read operation using the W register that has

been designated as the bit-reversed pointer.

Note: The modulo corrected effective address is

written back to the register only when

Pre-Modify or Post-Modify Addressing

mode is used to compute the effective

address. When an address offset (such as

[W7 + W2]) is used, Modulo Address

correction is performed, but the contents

of the register remain unchanged.

Note: All bit-reversed EA calculations assume

word-sized data (LSb of every EA is

always clear). The XB value is scaled

accordingly to generate compatible (byte)

addresses.

Note: The Modulo Addressing and Bit-Reversed

Addressing should not be enabled

together. If an application attempts to do

so, Bit-Reversed Addressing assumes

priority when active for the X WAGU and X

WAGU, Modulo Addressing is disabled.

However, Modulo Addressing continues to

function in the X RAGU.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 4-8: BIT-REVERSED ADDRESS EXAMPLE

TABLE 4-41: BIT-REVERSED ADDRESS SEQUENCE (16-ENTRY)

Normal Address Bit-Reversed Address

A3 A2 A1 A0 Decimal A3 A2 A1 A0 Decimal

0000 00000 0

0001 11000 8

0010 20100 4

0011 31100 12

0100 40010 2

0101 51010 10

0110 60110 6

0111 71110 14

1000 80001 1

1001 91001 9

1010 10 0101 5

1011 11 1101 13

1100 12 0011 3

1101 13 1011 11

1110 14 0111 7

1111 15 1111 15

b3 b2 b1 0

b2 b3 b4 0

Bit Locations Swapped Left-to-Right

Around Center of Binary Value

Bit-Reversed Address

XB = 0x0008 for a 16-Word Bit-Reversed Buffer

b7 b6 b5 b1

b7 b6 b5 b4

b11 b10 b9 b8

b15 b14 b13 b12

Sequential Address

Pivot Point

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.8 Interfacing Program and Data

Memory Spaces

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 architecture uses

a 24-bit-wide program space and a 16-bit-wide data

space. The architecture is a modified Harvard scheme,

meaning that data can also be present in the program

space. To use this data successfully, it must be

accessed in a way that preserves the alignment of

information in both spaces.

Aside from normal execution, the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 architecture provides

two methods by which program space can be

accessed during operation:

• Using table instructions to access individual bytes

or words anywhere in the program space

• Remapping a portion of the program space into

the data space (Program Space Visibility)

Table instructions allow an application to read or write

to small areas of the program memory. This capability

makes the method ideal for accessing data tables that

need to be updated periodically. It also allows access

to all bytes of the program word. The remapping

method allows an application to access a large block of

data on a read-only basis, which is ideal for look-ups

from a large table of static data. The application can

only access the least significant word of the program

word.

4.8.1 ADDRESSING PROGRAM SPACE

As the address ranges for the data and program

spaces are 16 and 24 bits, respectively, a method is

needed to create a 23-bit or 24-bit program address

from 16-bit data registers. The solution depends on the

interface method to be used.

For table operations, the 8-bit Table Page register

(TBLPAG) is used to define a 32K word region within

the program space. This is concatenated with a 16-bit

EA to arrive at a full 24-bit program space address. In

this format, the Most Significant bit of TBLPAG is used

to determine if the operation occurs in the user memory

(TBLPAG<7> = 0) or the configuration memory

(TBLPAG<7> = 1).

For remapping operations, the 8-bit Program Space

Visibility register (PSVPAG) is used to define a

16K word page in the program space. When the Most

Significant bit of the EA is ‘1’, the PSVPAG is

concatenated with the lower 15 bits of the EA to form a

23-bit program space address. Unlike table operations,

this limits remapping operations strictly to the user

memory area.

Table 4-42 and Figure 4-9 show how the program EA is

created for table operations and remapping accesses

from the data EA. Here, P<23:0> refers to a program

space word, and D<15:0> refers to a data space word.

TABLE 4-42: PROGRAM SPACE ADDRESS CONSTRUCTION

Access Type Access

Space

Program Space Address

<23> <22:16> <15> <14:1> <0>

Instruction Access

(Code Execution)

User 0PC<22:1> 0

0xx xxxx xxxx xxxx xxxx xxx0

TBLRD/TBLWT

(Byte/Word Read/Write)

User TBLPAG<7:0> Data EA<15:0>

0xxx xxxx xxxx xxxx xxxx xxxx

Configuration TBLPAG<7:0> Data EA<15:0>

1xxx xxxx xxxx xxxx xxxx xxxx

Program Space Visibility

(Block Remap/Read)

User 0PSVPAG<7:0> Data EA<14:0>(1)

0 xxxx xxxx xxx xxxx xxxx xxxx

Note 1: Data EA<15> is always ‘1’ in this case, but is not used in calculating the program space address. Bit 15 of

the address is PSVPAG<0>.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 4-9: DATA ACCESS FROM PROGRAM SPACE ADDRESS GENERATION

0Program Counter

23 bits

PSVPAG

8 bits

15 bits

Program Counter(1)

Select

TBLPAG

8 bits

16 bits

Byte Select

1/0

User/Configuration

Table Operations(2)

Program Space Visibility(1)

Space Select

24 bits

23 bits

(Remapping)

1/0

Note 1: The Least Significant bit (LSb) of program space addresses is always fixed as ‘0’ to maintain

word alignment of data in the program and data spaces.

2: Table operations are not required to be word aligned. Table read operations are permitted

in the configuration memory space.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.8.2 DATA ACCESS FROM PROGRAM

MEMORY USING TABLE

INSTRUCTIONS

The TBLRDL and TBLWTL instructions offer a direct

method of reading or writing the lower word of any

address within the program space without going

through data space. The TBLRDH and TBLWTH

instructions are the only method to read or write the

upper 8 bits of a program space word as data.

The PC is incremented by two for each successive

24-bit program word. This allows program memory

addresses to directly map to data space addresses.

Program memory can thus be regarded as two

16-bit-wide word address spaces, residing side by side,

each with the same address range. The TBLRDL and

TBLWTL access the space that contains the least

significant data word. The TBLRDH and TBLWTH access

the space that contains the upper data byte.

Two table instructions are provided to move byte or

word-sized (16-bit) data to and from program space.

Both function as either byte or word operations.

•TBLRDL (Table Read Low):

- In Word mode, this instruction maps the

lower word of the program space

location (P<15:0>) to a data address

(D<15:0>).

- In Byte mode, either the upper or lower byte

of the lower program word is mapped to the

lower byte of a data address. The upper byte

is selected when Byte Select is ‘1’; the lower

byte is selected when it is ‘0’.

•TBLRDH (Table Read High):

- In Word mode, this instruction maps the entire

upper word of a program address (P<23:16>)

to a data address. The phantom byte

(D<15:8>), is always ‘0’.

- In Byte mode, this instruction maps the upper

or lower byte of the program word to D<7:0> of

the data address, in the TBLRDL instruction.

The data is always ‘0’ when the upper phantom

byte is selected (Byte Select = 1).

In a similar fashion, two table instructions, TBLWTH

and TBLWTL, are used to write individual bytes or

words to a program space address. The details of

their operation are explained in Section 5.0 “Flash

Program Memory”.

For all table operations, the area of program memory

space to be accessed is determined by the Table Page

gram memory space of the device, including user applica-

tion and configuration spaces. When TBLPAG<7> = 0,

the table page is located in the user memory space. When

TBLPAG<7> = 1, the page is located in configuration

space.

FIGURE 4-10: ACCESSING PROGRAM MEMORY WITH TABLE INSTRUCTIONS

081623

00000000

‘Phantom’ Byte

TBLRDH.B (Wn<0> = 0)

TBLRDL.W

TBLRDL.B (Wn<0> = 1)

TBLRDL.B (Wn<0> = 0)

23 15 0

TBLPAG

0x000000

0x800000

0x020000

0x030000

Program Space

The address for the table operation is determined by the data EA

within the page defined by the TBLPAG register.

Only read operations are shown; write operations are also valid in

the user memory area.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

4.8.3 READING DATA FROM PROGRAM

MEMORY USING PROGRAM SPACE

VISIBILITY

The upper 32 Kbytes of data space may optionally be

mapped into any 16K word page of the program space.

This option provides transparent access to stored

constant data from the data space without the need to

use special instructions (such as TBLRDH).

Program space access through the data space occurs

if the Most Significant bit of the data space EA is ‘1’ and

program space visibility is enabled by setting the PSV

bit in the Core Control register (CORCON<2>). The

location of the program memory space to be mapped

into the data space is determined by the Program

Space Visibility Page register (PSVPAG). This 8-bit

16K words in program space. In effect, PSVPAG

functions as the upper 8 bits of the program memory

address, with the 15 bits of the EA functioning as the

lower bits. By incrementing the PC by 2 for each

program memory word, the lower 15 bits of data space

addresses directly map to the lower 15 bits in the

corresponding program space addresses.

Data reads to this area add a cycle to the instruction

being executed, since two program memory fetches

are required.

Although each data space address 0x8000 and higher

maps directly into a corresponding program memory

address (see Figure 4-11), only the lower 16 bits of the

24-bit program word are used to contain the data. The

upper 8 bits of any program space location used as

data should be programmed with ‘1111 1111’ or

‘0000 0000’ to force a NOP. This prevents possible

issues should the area of code ever be accidentally

executed.

For operations that use PSV and are executed outside

a REPEAT loop, the MOV and MOV.D instructions

require one instruction cycle in addition to the specified

execution time. All other instructions require two

instruction cycles in addition to the specified execution

time.

For operations that use PSV, and are executed inside

a REPEAT loop, these instances require two instruction

cycles in addition to the specified execution time of the

instruction:

• Execution in the first iteration

• Execution in the last iteration

• Execution prior to exiting the loop due to an

interrupt

• Execution upon re-entering the loop after an

interrupt is serviced

Any other iteration of the REPEAT loop allows the

instruction using PSV to access data, to execute in a

single cycle.

FIGURE 4-11: PROGRAM SPACE VISIBILITY OPERATION

Note: PSV access is temporarily disabled during

table reads/writes.

23 15 0

PSVPAG

Data Space

Program Space

0x0000

0x8000

0xFFFF

02 0x000000

0x800000

0x010000

0x018000

When CORCON<2> = 1 and EA<15> = 1:

The data in the page

designated by

PSVPAG is mapped

into the upper half of

the data memory

space...

Data EA<14:0>

...while the lower 15 bits

of the EA specify an

exact address within

the PSV area. This

corresponds exactly to

the same lower 15 bits

of the actual program

space address.

PSV Area

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

5.0 FLASH PROGRAM MEMORY

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices contain

internal Flash program memory for storing and

executing application code. The memory is readable,

writable and erasable during normal operation over the

entire VDD range.

Flash memory can be programmed in two ways:

• In-Circuit Serial Programming™ (ICSP™)

programming capability

• Run-Time Self-Programming (RTSP)

ICSP allows a dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 device to be serially programmed while in the end

application circuit. This is done with two lines for

programming clock and programming data (one of the

alternate programming pin pairs: PGECx/PGEDx), and

three other lines for power (VDD), ground (VSS) and

Master Clear (MCLR). This allows customers to

manufacture boards with unprogrammed devices and

then program the digital signal controller just before

shipping the product. This also allows the most recent

firmware or a custom firmware to be programmed.

RTSP is accomplished using TBLRD (table read) and

TBLWT (table write) instructions. With RTSP, the user

application can write program memory data either in

blocks or rows of 64 instructions (192 bytes) at a time

or a single program memory word, and erase program

memory in blocks or pages of 512 instructions (1536

bytes) at a time.

5.1 Table Instructions and Flash

Programming

Regardless of the method used, all programming of

Flash memory is done with the table read and table

write instructions. These allow direct read and write

access to the program memory space from the data

memory while the device is in normal operating mode.

The 24-bit target address in the program memory is

formed using bits <7:0> of the TBLPAG register and the

Effective Address (EA) from a W register specified in

the table instruction, as shown in Figure 5-1.

The TBLRDL and the TBLWTL instructions are used to

read or write to bits <15:0> of program memory. The

TBLRDL and TBLWTL instructions can access program

memory in both Word and Byte modes.

The TBLRDH and TBLWTH instructions are used to read

or write to bits <23:16> of program memory. The

TBLRDH and TBLWTH can also access program

memory in Word or Byte mode.

FIGURE 5-1: ADDRESSING FOR TABLE REGISTERS

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 5. “Flash

Programming” (DS70191) of the

“dsPIC33F/PIC24H Family Reference

Manual”, which is available from the

Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Program Counter

24 bits

Program Counter

TBLPAG Reg

8 bits

Working Reg EA

16 bits

Byte

24-bit EA

1/0

Select

Using

Table Instruction

Using

User/Configuration

Space Select

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

5.2 RTSP Operation

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 Flash program

memory array is organized into rows of 64 instructions

or 192 bytes. RTSP allows the user application to erase

a page of memory, which consists of eight rows (512

instructions) at a time, and to program one row or one

word at a time. Table 31-12 shows typical erase and

programming times. The 8-row erase pages and single

row write rows are edge-aligned from the beginning of

program memory, on boundaries of 1536 bytes and

192 bytes, respectively.

The program memory implements holding buffers that

can contain 64 instructions of programming data. Prior

to the actual programming operation, the write data

must be loaded into the buffers sequentially. The

instruction words loaded must always be from a group

of 64 boundary.

The basic sequence for RTSP programming is to set up

a Table Pointer, then do a series of TBLWT instructions

to load the buffers. Programming is performed by

setting the control bits in the NVMCON register. A total

of 64 TBLWTL and TBLWTH instructions are required

to load the instructions.

All of the table write operations are single-word writes

(two instruction cycles) because only the buffers are

written. A programming cycle is required for

programming each row.

5.3 Programming Operations

A complete programming sequence is necessary for

programming or erasing the internal Flash in RTSP

mode. The processor stalls (waits) until the

programming operation is finished.

The programming time depends on the FRC accuracy

(see Table 31-19) and the value of the FRC Oscillator

Tuning register (see Register 9-4). Use the following

formula to calculate the minimum and maximum values

for the Row Write Time, Page Erase Time, and Word

Write Cycle Time parameters (see Table 31-12).

EQUATION 5-1: PROGRAMMING TIME

For example, if the device is operating at +125°C, the

FRC accuracy will be ±5%. If the TUN<5:0> bits (see

write time is equal to Equation 5-2.

EQUATION 5-2: MINIMUM ROW WRITE

TIME

The maximum row write time is equal to Equation 5-3.

EQUATION 5-3: MAXIMUM ROW WRITE

TIME

Setting the WR bit (NVMCON<15>) starts the

operation, and the WR bit is automatically cleared

when the operation is finished.

5.4 Control Registers

Two SFRs are used to read and write the program

Flash memory:

• NVMCON: The NVMCON register (Register 5-1)

controls which blocks are to be erased, which

memory type is to be programmed and the start of

the programming cycle.

• NVMKEY: NVMKEY (Register 5-2) is a write-only

programming or erase sequence, the user

application must consecutively write 0x55 and

0xAA to the NVMKEY register. Refer to

Section 5.3 “Programming Operations” for

further details.

5.5 Flash Programming Resources

Many useful resources related to Flash programming

are provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

5.5.1 KEY RESOURCES

•Section 5. “Flash Programming” (DS70191)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

7.37 MHz FRC Accuracy()%FRC Tuning()%××

----------------------------------------------------------------------------------------------------------------------------

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

TRW

11064 Cycles

7.37 MHz 10.05+()1 0.00375–()××

------------------------------------------------------------------------------------------------ 1.435ms==

TRW

11064 Cycles

7.37 MHz 10.05–()1 0.00375–()××

------------------------------------------------------------------------------------------------1.586ms==

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

5.6 Flash Memory Control Registers

R/SO-0(1) R/W-0(1) R/W-0(1) U-0 U-0 U-0 U-0 U-0

WR WREN WRERR — — — — —

bit 15 bit 8

U-0 R/W-0(1) U-0 U-0 R/W-0(1) R/W-0(1) R/W-0(1) R/W-0(1)

— ERASE ——NVMOP<3:0>

(2)

bit 7 bit 0

Legend: SO = Satiable only bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 WR: Write Control bit

1 = Initiates a Flash memory program or erase operation. The operation is self-timed and the bit is

cleared by hardware once operation is complete

0 = Program or erase operation is complete and inactive

bit 14 WREN: Write Enable bit

1 = Enable Flash program/erase operations

0 = Inhibit Flash program/erase operations

bit 13 WRERR: Write Sequence Error Flag bit

1 = An improper program or erase sequence attempt or termination has occurred (bit is set

automatically on any set attempt of the WR bit)

0 = The program or erase operation completed normally

bit 12-7 Unimplemented: Read as ‘0’

bit 6 ERASE: Erase/Program Enable bit

1 = Perform the erase operation specified by the NVMOP<3:0> bits on the next WR command

0 = Perform the program operation specified by the NVMOP<3:0> bits on the next WR command

bit 5-4 Unimplemented: Read as ‘0’

bit 3-0 NVMOP<3:0>: NVM Operation Select bits(2)

If ERASE = 1:

1111 = Memory bulk erase operation

1110 = Reserved

1101 = Erase General Segment

1100 = Erase Secure Segment

1011 = Reserved

0011 = No operation

0010 = Memory page erase operation

0001 = No operation

0000 = Erase a single Configuration register byte

If ERASE = 0:

1111 = No operation

1110 = Reserved

1101 = No operation

1100 = No operation

1011 = Reserved

0011 = Memory word program operation

0010 = No operation

0001 = Memory row program operation

0000 = Program a single Configuration register byte

Note 1: These bits can only be reset on POR.

2: All other combinations of NVMOP<3:0> are unimplemented.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

W-0 W-0 W-0 W-0 W-0 W-0 W-0 W-0

NVMKEY<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Unimplemented: Read as ‘0’

bit 7-0 NVMKEY<7:0>: Key Register (write-only) bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

5.6.1 PROGRAMMING ALGORITHM FOR

FLASH PROGRAM MEMORY

Programmers can program one row of program Flash

memory at a time. To do this, it is necessary to erase

the 8-row erase page that contains the desired row.

The general process is:

1. Read eight rows of program memory

(512 instructions) and store in data RAM.

2. Update the program data in RAM with the

desired new data.

3. Erase the block (see Example 5-1):

a) Set the NVMOP bits (NVMCON<3:0>) to

‘0010’ to configure for block erase. Set the

ERASE (NVMCON<6>) and WREN

(NVMCON<14>) bits.

b) Write the starting address of the page to be

erased into the TBLPAG and W registers.

c) Write 0x55 to NVMKEY.

d) Write 0xAA to NVMKEY.

e) Set the WR bit (NVMCON<15>). The erase

cycle begins and the CPU stalls for the

duration of the erase cycle. When the erase is

done, the WR bit is cleared automatically.

4. Write the first 64 instructions from data RAM into

the program memory buffers (see Example 5-2).

5. Write the program block to Flash memory:

a) Set the NVMOP bits to ‘0001’ to configure

for row programming. Clear the ERASE bit

and set the WREN bit.

b) Write 0x55 to NVMKEY.

c) Write 0xAA to NVMKEY.

d) Set the WR bit. The programming cycle

begins and the CPU stalls for the duration of

the write cycle. When the write to Flash

memory is done, the WR bit is cleared

automatically.

6. Repeat steps 4 and 5, using the next available

64 instructions from the block in data RAM by

incrementing the value in TBLPAG, until all

512 instructions are written back to Flash memory.

For protection against accidental operations, the write

initiate sequence for NVMKEY must be used to allow

any erase or program operation to proceed. After the

programming command has been executed, the user

application must wait for the programming time until

programming is complete. The two instructions

following the start of the programming sequence

should be NOPs, as shown in Example 5-3.

EXAMPLE 5-1: ERASING A PROGRAM MEMORY PAGE

; Set up NVMCON for block erase operation

MOV #0x4042, W0 ;

MOV W0, NVMCON ; Initialize NVMCON

; Init pointer to row to be ERASED

MOV #tblpage(PROG_ADDR), W0 ;

MOV W0, TBLPAG ; Initialize PM Page Boundary SFR

MOV #tbloffset(PROG_ADDR), W0 ; Initialize in-page EA[15:0] pointer

TBLWTL W0, [W0] ; Set base address of erase block

DISI #5 ; Block all interrupts with priority < 7

; for next 5 instructions

MOV #0x55, W0

MOV W0, NVMKEY ; Write the 55 key

MOV #0xAA, W1 ;

MOV W1, NVMKEY ; Write the AA key

BSET NVMCON, #WR ; Start the erase sequence

NOP ; Insert two NOPs after the erase

NOP ; command is asserted

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

EXAMPLE 5-2: LOADING THE WRITE BUFFERS

EXAMPLE 5-3: INITIATING A PROGRAMMING SEQUENCE

; Set up NVMCON for row programming operations

MOV #0x4001, W0 ;

MOV W0, NVMCON ; Initialize NVMCON

; Set up a pointer to the first program memory location to be written

; program memory selected, and writes enabled

MOV #0x0000, W0 ;

MOV W0, TBLPAG ; Initialize PM Page Boundary SFR

MOV #0x6000, W0 ; An example program memory address

; Perform the TBLWT instructions to write the latches

; 0th_program_word

MOV #LOW_WORD_0, W2 ;

MOV #HIGH_BYTE_0, W3 ;

TBLWTL W2, [W0] ; Write PM low word into program latch

TBLWTH W3, [W0++] ; Write PM high byte into program latch

; 1st_program_word

MOV #LOW_WORD_1, W2 ;

MOV #HIGH_BYTE_1, W3 ;

TBLWTL W2, [W0] ; Write PM low word into program latch

TBLWTH W3, [W0++] ; Write PM high byte into program latch

; 2nd_program_word

MOV #LOW_WORD_2, W2 ;

MOV #HIGH_BYTE_2, W3 ;

TBLWTL W2, [W0] ; Write PM low word into program latch

TBLWTH W3, [W0++] ; Write PM high byte into program latch

•

; 63rd_program_word

MOV #LOW_WORD_31, W2 ;

MOV #HIGH_BYTE_31, W3 ;

TBLWTL W2, [W0] ; Write PM low word into program latch

TBLWTH W3, [W0++] ; Write PM high byte into program latch

DISI #5 ; Block all interrupts with priority < 7

; for next 5 instructions

MOV #0x55, W0

MOV W0, NVMKEY ; Write the 55 key

MOV #0xAA, W1 ;

MOV W1, NVMKEY ; Write the AA key

BSET NVMCON, #WR ; Start the erase sequence

NOP ; Insert two NOPs after the

NOP ; erase command is asserted

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.0 RESETS

The Reset module combines all reset sources and

controls the device Master Reset Signal, SYSRST. The

following is a list of device Reset sources:

• POR: Power-on Reset

• BOR: Brown-out Reset

•MCLR

: Master Clear Pin Reset

•SWR: RESET Instruction

• WDTO: Watchdog Timer Reset

• CM: Configuration Mismatch Reset

• TRAPR: Trap Conflict Reset

• IOPUWR: Illegal Condition Device Reset

- Illegal Opcode Reset

- Uninitialized W Register Reset

- Security Reset

A simplified block diagram of the Reset module is

shown in Figure 6-1.

Any active source of Reset will make the SYSRST

signal active. On system Reset, some of the registers

associated with the CPU and peripherals are forced to

a known Reset state and some are unaffected.

All types of device Reset set a corresponding status bit

in the RCON register to indicate the type of Reset (see

A POR clears all the bits, except for the POR bit

(RCON<0>), that are set. The user application can set

or clear any bit at any time during the code execution.

The RCON bits only serve as status bits. Setting a

particular Reset status bit in software does not cause a

device Reset to occur.

The RCON register also has other bits associated with

the Watchdog Timer and device power-saving states.

The function of these bits is discussed in other sections

of this manual.

FIGURE 6-1: RESET SYSTEM BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 8. “Reset”

(DS70192) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: Refer to the specific peripheral section or

Section 3.0 “CPU” in this data sheet for

Note: The status bits in the RCON register

should be cleared after they are read so

that the next RCON register value after a

device Reset is meaningful.

MCLR

VDD

Internal

Regulator

BOR

Sleep or Idle

RESET Instruction

WDT

Module

Glitch Filter

Trap Conflict

Illegal Opcode

Uninitialized W Register

SYSRST

VDD Rise

Detect

POR

Configuration Mismatch

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.1 Resets Resources

Many useful resources related to Resets are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

6.1.1 KEY RESOURCES

•Section 8. “Reset” (DS70192)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.2 Reset Control Registers

R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

TRAPR IOPUWR — — — —CMVREGS

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-1

EXTR SWR SWDTEN(2) WDTO SLEEP IDLE BOR POR

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 TRAPR: Trap Reset Flag bit

1 = A Trap Conflict Reset has occurred

0 = A Trap Conflict Reset has not occurred

bit 14 IOPUWR: Illegal Opcode or Uninitialized W Access Reset Flag bit

1 = An illegal opcode detection, an illegal address mode or uninitialized W register used as an

Address Pointer caused a Reset

0 = An illegal opcode or uninitialized W Reset has not occurred

bit 13-10 Unimplemented: Read as ‘0’

bit 9 CM: Configuration Mismatch Flag bit

1 = A configuration mismatch Reset has occurred

0 = A configuration mismatch Reset has NOT occurred

bit 8 VREGS: Voltage Regulator Standby During Sleep bit

1 = Voltage regulator is active during Sleep

0 = Voltage regulator goes into Standby mode during Sleep

bit 7 EXTR: External Reset (MCLR) Pin bit

1 = A Master Clear (pin) Reset has occurred

0 = A Master Clear (pin) Reset has not occurred

bit 6 SWR: Software Reset (Instruction) Flag bit

1 = A RESET instruction has been executed

0 = A RESET instruction has not been executed

bit 5 SWDTEN: Software Enable/Disable of WDT bit(2)

1 = WDT is enabled

0 = WDT is disabled

bit 4 WDTO: Watchdog Timer Time-out Flag bit

1 = WDT time-out has occurred

0 = WDT time-out has not occurred

bit 3 SLEEP: Wake-up from Sleep Flag bit

1 = Device has been in Sleep mode

0 = Device has not been in Sleep mode

bit 2 IDLE: Wake-up from Idle Flag bit

1 = Device was in Idle mode

0 = Device was not in Idle mode

Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not

cause a device Reset.

2: If the FWDTEN Configuration bit is ‘1’ (unprogrammed), the WDT is always enabled, regardless of the

SWDTEN bit setting.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 1 BOR: Brown-out Reset Flag bit

1 = A Brown-out Reset has occurred

0 = A Brown-out Reset has not occurred

bit 0 POR: Power-on Reset Flag bit

1 = A Power-on Reset has occurred

0 = A Power-on Reset has not occurred

Note 1: All of the Reset status bits can be set or cleared in software. Setting one of these bits in software does not

cause a device Reset.

2: If the FWDTEN Configuration bit is ‘1’ (unprogrammed), the WDT is always enabled, regardless of the

SWDTEN bit setting.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.3 System Reset

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 family of devices

have two types of Reset:

• Cold Reset

• Warm Reset

A cold Reset is the result of a Power-on Reset (POR)

or a Brown-out Reset (BOR). On a cold Reset, the

FNOSC Configuration bits in the FOSC device

Configuration register selects the device clock source.

A warm Reset is the result of all other reset sources,

including the RESET instruction. On warm Reset, the

device will continue to operate from the current clock

source as indicated by the Current Oscillator Selection

bits (COSC<2:0>) in the Oscillator Control register

(OSCCON<14:12>).

The device is kept in a Reset state until the system

power supplies have stabilized at appropriate levels

and the oscillator clock is ready. The description of

the sequence in which this occurs is shown in

Figure 6-2.

TABLE 6-1: OSCILLATOR DELAY

Oscillator Mode Oscillator

Startup Delay

Oscillator

Startup Timer PLL Lock Time Total Delay

FRC, FRCDIV16, FRCDIVN TOSCD ——TOSCD

FRCPLL TOSCD —TLOCK TOSCD + TLOCK

XT TOSCD TOST —TOSCD + TOST

HS TOSCD TOST —TOSCD + TOST

EC ————

XTPLL TOSCD TOST TLOCK TOSCD + TOST +

TLOCK

HSPLL TOSCD TOST TLOCK TOSCD + TOST +

TLOCK

ECPLL — — TLOCK TLOCK

SOSC TOSCD TOST —TOSCD + TOST

LPRC TOSCD ——TOSCD

Note 1: TOSCD = Oscillator Start-up Delay (1.1 μs max for FRC, 70 μs max for LPRC). Crystal Oscillator start-up

times vary with crystal characteristics, load capacitance, etc.

2: TOST = Oscillator Start-up Timer Delay (1024 oscillator clock period). For example, TOST = 102.4 μs for a

10 MHz crystal and TOST = 32 ms for a 32 kHz crystal.

3: TLOCK = PLL lock time (1.5 ms nominal), if PLL is enabled.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 6-2: SYSTEM RESET TIMING

Reset Run

Device Status

VDD

VPOR

Vbor

VBOR

POR

BOR

SYSRST

TPWRT

TPOR

TBOR

Oscillator Clock

TOSCD TOST TLOCK

Time

FSCM TFSCM

Note 1: POR: A POR circuit holds the device in Reset when the power supply is turned on. The POR circuit is active

until VDD crosses the VPOR threshold and the delay TPOR has elapsed.

2: BOR: The on-chip voltage regulator has a BOR circuit that keeps the device in Reset until VDD crosses the

VBOR threshold and the delay TBOR has elapsed. The delay TBOR ensures the voltage regulator output

becomes stable.

3: PWRT Timer: The programmable power-up timer continues to hold the processor in Reset for a specific

period of time (TPWRT) after a BOR. The delay TPWRT ensures that the system power supplies have stabilized

at the appropriate level for full-speed operation. After the delay TPWRT has elapsed, the SYSRST becomes

inactive, which in turn enables the selected oscillator to start generating clock cycles.

4: Oscillator Delay: The total delay for the clock to be ready for various clock source selections are given in

Table 6-1. Refer to Section 9.0 “Oscillator Configuration” for more information.

5: When the oscillator clock is ready, the processor begins execution from location 0x000000. The user

application programs a GOTO instruction at the reset address, which redirects program execution to the

appropriate start-up routine.

6: The Fail-Safe Clock Monitor (FSCM), if enabled, begins to monitor the system clock when the system clock

is ready and the delay TFSCM has elapsed.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.4 Power-on Reset (POR)

A Power-on Reset (POR) circuit ensures the device is

reset from power-on. The POR circuit is active until

VDD crosses the VPOR threshold and the delay TPOR

has elapsed. The delay TPOR ensures the internal

device bias circuits become stable.

The device supply voltage characteristics must meet

the specified starting voltage and rise rate

requirements to generate the POR. Refer to

Section 31.0 “Electrical Characteristics” for details.

The POR status bit (POR) in the Reset Control register

(RCON<0>) is set to indicate the Power-on Reset.

6.4.1 Brown-out Reset (BOR) and

Power-up Timer (PWRT)

The on-chip regulator has a Brown-out Reset (BOR)

circuit that resets the device when the VDD is too low

(VDD < VBOR) for proper device operation. The BOR

circuit keeps the device in Reset until VDD crosses

VBOR threshold and the delay TBOR has elapsed. The

delay TBOR ensures the voltage regulator output

becomes stable.

The BOR status bit (BOR) in the Reset Control register

(RCON<1>) is set to indicate the Brown-out Reset.

The device will not run at full speed after a BOR as the

VDD should rise to acceptable levels for full-speed

operation. The PWRT provides power-up time delay

(TPWRT) to ensure that the system power supplies have

stabilized at the appropriate levels for full-speed

operation before the SYSRST is released.

The power-up timer delay (TPWRT) is programmed by

the Power-on Reset Timer Value Select bits

(FPWRT<2:0>) in the POR Configuration register

(FPOR<2:0>), which provides eight settings (from 0 ms

to 128 ms). Refer to Section 28.0 “Special Features”

for further details.

Figure 6-3 shows the typical brown-out scenarios. The

reset delay (TBOR + TPWRT) is initiated each time VDD

rises above the VBOR trip point

TABLE 6-2: OSCILLATOR PARAMETERS

Symbol Parameter Value

VPOR POR threshold 1.8V nominal

TPOR POR extension time 30 μs maximum

VBOR BOR threshold 2.5V nominal

TBOR BOR extension time 100 μs maximum

TPWRT Programmable power-up time delay 0-128 ms nominal

TFSCM Fail-Safe Clock Monitor Delay 900 μs maximum

Note: When the device exits the Reset

condition (begins normal operation), the

device operating parameters (voltage,

frequency, temperature, etc.) must be

within their operating ranges, otherwise,

the device may not function correctly.

The user application must ensure that

the delay between the time power is

first applied, and the time SYSRST

becomes inactive, is long enough to get

all operating parameters within

specification.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 6-3: BROWN-OUT SITUATIONS

6.5 External Reset (EXTR)

The external Reset is generated by driving the MCLR

pin low. The MCLR pin is a Schmitt trigger input with an

additional glitch filter. Reset pulses that are longer than

the minimum pulse width will generate a Reset. Refer

to Section 31.0 “Electrical Characteristics” for

minimum pulse width specifications. The External

Reset (MCLR) Pin bit (EXTR) in the Reset Control

6.5.0.1 EXTERNAL SUPERVISORY CIRCUIT

Many systems have external supervisory circuits that

generate reset signals to Reset multiple devices in the

system. This external Reset signal can be directly

connected to the MCLR pin to Reset the device when

the rest of system is Reset.

6.5.0.2 INTERNAL SUPERVISORY CIRCUIT

When using the internal power supervisory circuit to

Reset the device, the external reset pin (MCLR) should

be tied directly or resistively to VDD. In this case, the

MCLR pin will not be used to generate a Reset. The

external reset pin (MCLR) does not have an internal

pull-up and must not be left unconnected.

6.6 Software RESET Instruction (SWR)

Whenever the RESET instruction is executed, the

device will assert SYSRST, placing the device in a

special Reset state. This Reset state will not

re-initialize the clock. The clock source in effect prior to

the RESET instruction will remain. SYSRST is released

at the next instruction cycle, and the reset vector fetch

will commence.

The Software Reset (Instruction) Flag bit (SWR) in the

Reset Control register (RCON<6>) is set to indicate

the software Reset.

6.7 Watchdog Time-out Reset (WDTO)

Whenever a Watchdog time-out occurs, the device will

asynchronously assert SYSRST. The clock source will

remain unchanged. A WDT time-out during Sleep or

Idle mode will wake-up the processor, but will not reset

the processor.

The Watchdog Timer Time-out Flag bit (WDTO) in the

Reset Control register (RCON<4>) is set to indicate

the Watchdog Reset. Refer to Section 28.4

“Watchdog Timer (WDT)” for more information on

Watchdog Reset.

6.8 Trap Conflict Reset

If a lower-priority hard trap occurs while a

higher-priority trap is being processed, a hard trap

conflict Reset occurs. The hard traps include

exceptions of priority level 13 through level 15,

inclusive. The address error (level 13) and oscillator

error (level 14) traps fall into this category.

The Trap Reset Flag bit (TRAPR) in the Reset Control

Reset. Refer to Section 7.0 “Interrupt Controller” for

more information on trap conflict Resets.

VDD

SYSRST

VBOR

VDD

SYSRST

VBOR

VDD

SYSRST

VBOR

TBOR + TPWRT

VDD dips before PWRT expires

TBOR + TPWRT

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

6.9 Configuration Mismatch Reset

To maintain the integrity of the peripheral pin select

control registers, they are constantly monitored with

shadow registers in hardware. If an unexpected

change in any of the registers occur (such as cell

disturbances caused by ESD or other external events),

a configuration mismatch Reset occurs.

The Configuration Mismatch Flag bit (CM) in the Reset

Control register (RCON<9>) is set to indicate the

configuration mismatch Reset. Refer to Section 11.0

“I/O Ports” for more information on the configuration

mismatch Reset.

6.10 Illegal Condition Device Reset

An illegal condition device Reset occurs due to the

following sources:

• Illegal Opcode Reset

• Uninitialized W Register Reset

• Security Reset

The Illegal Opcode or Uninitialized W Access Reset

Flag bit (IOPUWR) in the Reset Control register

(RCON<14>) is set to indicate the illegal condition

device Reset.

6.10.0.1 ILLEGAL OPCODE RESET

A device Reset is generated if the device attempts to

execute an illegal opcode value that is fetched from

program memory.

The illegal opcode Reset function can prevent the

device from executing program memory sections that

are used to store constant data. To take advantage of

the illegal opcode Reset, use only the lower 16 bits of

each program memory section to store the data values.

The upper 8 bits should be programmed with 3Fh,

which is an illegal opcode value.

6.10.0.2 UNINITIALIZED W REGISTER

RESET

Any attempts to use the uninitialized W register as an

address pointer will Reset the device. The W register

array (with the exception of W15) is cleared during all

resets and is considered uninitialized until written to.

6.10.0.3 SECURITY RESET

If a Program Flow Change (PFC) or Vector Flow

Change (VFC) targets a restricted location in a

protected segment (Boot and Secure Segment), that

operation will cause a security Reset.

The PFC occurs when the Program Counter is

reloaded as a result of a Call, Jump, Computed Jump,

Return, Return from Subroutine, or other form of

branch instruction.

The VFC occurs when the Program Counter is

reloaded with an Interrupt or Trap vector.

Refer to Section 28.8 “Code Protection and

CodeGuard Security” for more information on

Security Reset.

6.11 Using the RCON Status Bits

The user application can read the Reset Control

the cause of the reset.

Table 6-3 provides a summary of the Reset flag bit

operation.

TABLE 6-3: RESET FLAG BIT OPERATION(1)

Note: The configuration mismatch feature and

associated reset flag is not available on all

devices.

Note: The status bits in the RCON register

should be cleared after they are read so

that the next RCON register value after a

device Reset will be meaningful.

Flag Bit Set by: Cleared by:

TRAPR (RCON<15>) Trap conflict event POR, BOR

IOPWR (RCON<14>) Illegal opcode or uninitialized W register

access or Security Reset

POR, BOR

CM (RCON<9>) Configuration Mismatch POR, BOR

EXTR (RCON<7>) MCLR Reset POR

SWR (RCON<6>) RESET instruction POR, BOR

WDTO (RCON<4>) WDT time-out PWRSAV instruction, CLRWDT instruction,

POR, BOR

SLEEP (RCON<3>) PWRSAV #SLEEP instruction POR, BOR

IDLE (RCON<2>) PWRSAV #IDLE instruction POR, BOR

BOR (RCON<1>) POR, BOR —

POR (RCON<0>) POR —

Note 1: All Reset flag bits can be set or cleared by user software.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

7.0 INTERRUPT CONTROLLER

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 interrupt

controller reduces the numerous peripheral interrupt

request signals to a single interrupt request signal to

the dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 CPU.

The interrupt controller has the following features:

• Up to eight processor exceptions and software

traps

• Eight user-selectable priority levels

• Interrupt Vector Table (IVT) with up to 118 vectors

• A unique vector for each interrupt or exception

source

• Fixed priority within a specified user priority level

• Alternate Interrupt Vector Table (AIVT) for debug

support

• Fixed interrupt entry and return latencies

7.1 Interrupt Vector Table

The Interrupt Vector Table (IVT) shown in Figure 7-1,

resides in program memory, starting at location

000004h. The IVT contains 126 vectors consisting of

eight nonmaskable trap vectors plus up to 118 sources

of interrupt. In general, each interrupt source has its

own vector. Each interrupt vector contains a 24-bit wide

address. The value programmed into each interrupt

vector location is the starting address of the associated

Interrupt Service Routine (ISR).

Interrupt vectors are prioritized in terms of their natural

priority. This priority is linked to their position in the

vector table. Lower addresses generally have a higher

natural priority. For example, the interrupt associated

with vector 0 takes priority over interrupts at any other

vector address.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices imple-

ment up to 53 unique interrupts and five nonmaskable

traps. These are summarized in Table 7-1.

7.1.1 ALTERNATE INTERRUPT VECTOR

TA B L E

The Alternate Interrupt Vector Table (AIVT) is located

after the IVT, as shown in Figure 7-1. Access to the

AIVT is provided by the ALTIVT control bit

(INTCON2<15>). If the ALTIVT bit is set, all interrupt

and exception processes use the alternate vectors

instead of the default vectors. The alternate vectors are

organized in the same manner as the default vectors.

The AIVT supports debugging by providing a means to

switch between an application and a support

environment without requiring the interrupt vectors to

be reprogrammed. This feature also enables switching

between applications for evaluation of different

software algorithms at run time. If the AIVT is not

needed, the AIVT should be programmed with the

same addresses used in the IVT.

7.2 Reset Sequence

A device Reset is not a true exception because the

interrupt controller is not involved in the Reset process.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 device clears its

registers in response to a Reset, which forces the PC

to zero. The digital signal controller then begins

program execution at location 0x000000. A GOTO

instruction at the Reset address can redirect program

execution to the appropriate start-up routine.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 32. “Interrupts

(Part III)” (DS70214) of the “dsPIC33F/

PIC24H Family Reference Manual”,

which is available from the Microchip web

site (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: Any unimplemented or unused vector

locations in the IVT and AIVT should be

programmed with the address of a default

interrupt handler routine that contains a

RESET instruction.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 7-1: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/

X04 INTERRUPT VECTOR TABLE

Reset – GOTO Instruction 0x000000

Reset – GOTO Address 0x000002

Reserved 0x000004

Oscillator Fail Trap Vector

Address Error Trap Vector

Stack Error Trap Vector

Math Error Trap Vector

DMA Error Trap Vector

Reserved

Interrupt Vector 0 0x000014

Interrupt Vector 1

Interrupt Vector 52 0x00007C

Interrupt Vector 53 0x00007E

Interrupt Vector 54 0x000080

Interrupt Vector 116 0x0000FC

Interrupt Vector 117 0x0000FE

Reserved 0x000100

Reserved 0x000102

Reserved

Oscillator Fail Trap Vector

Address Error Trap Vector

Stack Error Trap Vector

Math Error Trap Vector

DMA Error Trap Vector

Reserved

Interrupt Vector 0 0x000114

Interrupt Vector 1

Interrupt Vector 52 0x00017C

Interrupt Vector 53 0x00017E

Interrupt Vector 54 0x000180

Interrupt Vector 116

Interrupt Vector 117 0x0001FE

Start of Code 0x000200

Decreasing Natural Order Priority

Interrupt Vector Table (IVT)(1)

Alternate Interrupt Vector Table (AIVT)(1)

Note 1: See Table 7-1 for the list of implemented interrupt vectors.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 7-1: INTERRUPT VECTORS

Vector

Number IVT Address AIVT Address Interrupt Source

0 0x000004 0x000104 Reserved

1 0x000006 0x000106 Oscillator Failure

2 0x000008 0x000108 Address Error

3 0x00000A 0x00010A Stack Error

4 0x00000C 0x00010C Math Error

5 0x00000E 0x00010E DMA Error

6-7 0x000010-0x000012 0x000110-0x000112 Reserved

8 0x000014 0x000114 INT0 – External Interrupt 0

9 0x000016 0x000116 IC1 – Input Capture 1

10 0x000018 0x000118 OC1 – Output Compare 1

11 0x00001A 0x00011A T1 – Timer1

12 0x00001C 0x00011C DMA0 – DMA Channel 0

13 0x00001E 0x00011E IC2 – Input Capture 2

14 0x000020 0x000120 OC2 – Output Compare 2

15 0x000022 0x000122 T2 – Timer2

16 0x000024 0x000124 T3 – Timer3

17 0x000026 0x000126 SPI1E – SPI1 Error

18 0x000028 0x000128 SPI1 – SPI1 Transfer Done

19 0x00002A 0x00012A U1RX – UART1 Receiver

20 0x00002C 0x00012C U1TX – UART1 Transmitter

21 0x00002E 0x00012E ADC1 – ADC 1

22 0x000030 0x000130 DMA1 – DMA Channel 1

23 0x000032 0x000132 Reserved

24 0x000034 0x000134 SI2C1 – I2C1 Slave Events

25 0x000036 0x000136 MI2C1 – I2C1 Master Events

26 0x000038 0x000138 CM – Comparator Interrupt

27 0x00003A 0x00013A Change Notification Interrupt

28 0x00003C 0x00013C INT1 – External Interrupt 1

29 0x00003E 0x00013E Reserved

30 0x000040 0x000140 IC7 – Input Capture 7

31 0x000042 0x000142 IC8 – Input Capture 8

32 0x000044 0x000144 DMA2 – DMA Channel 2

33 0x000046 0x000146 OC3 – Output Compare 3

34 0x000048 0x000148 OC4 – Output Compare 4

35 0x00004A 0x00014A T4 – Timer4

36 0x00004C 0x00014C T5 – Timer5

37 0x00004E 0x00014E INT2 – External Interrupt 2

38 0x000050 0x000150 U2RX – UART2 Receiver

39 0x000052 0x000152 U2TX – UART2 Transmitter

40 0x000054 0x000154 SPI2E – SPI2 Error

41 0x000056 0x000156 SPI2 – SPI2 Transfer Done

42 0x000058 0x000158 C1RX – ECAN1 RX Data Ready

43 0x00005A 0x00015A C1 – ECAN1 Event

44 0x00005C 0x00015C DMA3 – DMA Channel 3

45-52 0x00005E-0x00006C 0x00015E-0x00016C Reserved

53 0x00006E 0x00016E PMP – Parallel Master Port

54 0x000070 0x000170 DMA – DMA Channel 4

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

55-64 0x000072-0x000084 0x000172-0x000184 Reserved

65 0x000086 0x000186 PWM1 – PWM1 Period Match

66 0x000088 0x000188 QEI1 – Position Counter Compare

67-68 0x00008A-0x00008C 0x00018A-0x00018C Reserved

69 0x00008E 0x00018E DMA5 – DMA Channel 5

70 0x000090 0x000190 RTCC – Real Time Clock

71 0x000092 0x000192 FLTA1 – PWM1 Fault A

72 0x000094 0x000194 Reserved

73 0x000096 0x000196 U1E – UART1 Error

74 0x000098 0x000198 U2E – UART2 Error

75 0x00009A 0x00019A CRC – CRC Generator Interrupt

76 0x00009C 0x00019C DMA6 – DMA Channel 6

77 0x00009E 0x00019E DMA7 – DMA Channel 7

78 0x0000A0 0x0001A0 C1TX – ECAN1 TX Data Request

79-80 0x0000A2-0x0000A4 0x0001A2-0x0001A4 Reserved

81 0x0000A6 0x0001A6 PWM2 – PWM2 Period Match

82 0x0000A8 0x0001A8 FLTA2 – PWM2 Fault A

83 0x0000AA 0x0001AA QEI2 – Position Counter Compare

84-85 0x0000AC-0x0000AE 0x0001AC-0x0001AE Reserved

86 0x0000B0 0x0001B0 DAC1R – DAC1 Right Data Request

87 0x0000B2 0x0001B2 DAC1L – DAC1 Left Data Request

88-126 0x0000B4-0x0000FE 0x0001B4-0x0001FE Reserved

TABLE 7-1: INTERRUPT VECTORS (CONTINUED)

Vector

Number IVT Address AIVT Address Interrupt Source

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

7.3 Interrupt Control and Status

Registers

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices imple-

ment a total of 30 registers for the interrupt controller:

• INTCON1

• INTCON2

•IFSx

•IECx

•IPCx

•INTTREG

7.3.1 INTCON1 AND INTCON2

Global interrupt control functions are controlled from

INTCON1 and INTCON2. INTCON1 contains the

Interrupt Nesting Disable bit (NSTDIS) as well as the

control and status flags for the processor trap sources.

The INTCON2 register controls the external interrupt

request signal behavior and the use of the Alternate

Interrupt Vector Table (AIVT).

7.3.2 IFSx

The IFS registers maintain all of the interrupt request

flags. Each source of interrupt has a status bit, which is

set by the respective peripherals or external signal and

is cleared via software.

7.3.3 IECx

The IEC registers maintain all of the interrupt enable

bits. These control bits are used to individually enable

interrupts from the peripherals or external signals.

7.3.4 IPCx

The IPC registers are used to set the interrupt priority

level for each source of interrupt. Each user interrupt

source can be assigned to one of eight priority levels.

7.3.5 INTTREG

The INTTREG register contains the associated

interrupt vector number and the new CPU interrupt

priority level, which are latched into vector number bits

(VECNUM<6:0>) and Interrupt level bits (ILR<3:0>) in

the INTTREG register. The new interrupt priority level

is the priority of the pending interrupt.

The interrupt sources are assigned to the IFSx, IECx

and IPCx registers in the same sequence that they are

listed in Table 7-1. For example, the INT0 (External

Interrupt 0) is shown as having vector number 8 and a

natural order priority of 0. Thus, the INT0IF bit is found

in IFS0<0>, the INT0IE bit in IEC0<0>, and the INT0IP

bits in the first position of IPC0 (IPC0<2:0>).

7.3.6 STATUS/CONTROL REGISTERS

Although they are not specifically part of the interrupt

control hardware, two of the CPU control registers

contain bits that control interrupt functionality.

• The CPU Status register, SR, contains the

IPL<2:0> bits (SR<7:5>). These bits indicate the

current CPU interrupt priority level. The user

software can change the current CPU priority

level by writing to the IPL bits.

• The CORCON register contains the IPL3 bit,

which together with IPL<2:0>, also indicates the

current CPU priority level. The IPL3 is a read-only

bit so that trap events cannot be masked by the

user software.

All Interrupt registers are described in Register 7-1

through Register 7-32.

7.4 Interrupts Resources

Many useful resources related to Interrupts are

provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

7.4.1 KEY RESOURCES

•Section 32. “Interrupts (Part III)” (DS70214)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

7.5 Interrupt Registers

R-0 R-0 R/C-0 R/C-0 R-0 R/C-0 R -0 R/W-0

OA OB SA SB OAB SAB DA DC

bit 15 bit 8

R/W-0(3) R/W-0(3) R/W-0(3) R-0 R/W-0 R/W-0 R/W-0 R/W-0

IPL2(2) IPL1(2) IPL0(2) RA N OV Z C

bit 7 bit 0

Legend:

C = Clear only bit R = Readable bit U = Unimplemented bit, read as ‘0’

S = Set only bit W = Writable bit -n = Value at POR

‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 7-5 IPL<2:0>: CPU Interrupt Priority Level Status bits(2)

111 = CPU Interrupt Priority Level is 7 (15), user interrupts disabled

110 = CPU Interrupt Priority Level is 6 (14)

101 = CPU Interrupt Priority Level is 5 (13)

100 = CPU Interrupt Priority Level is 4 (12)

011 = CPU Interrupt Priority Level is 3 (11)

010 = CPU Interrupt Priority Level is 2 (10)

001 = CPU Interrupt Priority Level is 1 (9)

000 = CPU Interrupt Priority Level is 0 (8)

Note 1: For complete register details, see Register 3-1.

2: The IPL<2:0> bits are concatenated with the IPL<3> bit (CORCON<3>) to form the CPU Interrupt Priority

Level. The value in parentheses indicates the IPL if IPL<3> = 1. User interrupts are disabled when

IPL<3> = 1.

3: The IPL<2:0> status bits are read-only when the NSTDIS bit (INTCON1<15>) = 1.

U-0 U-0 U-0 R/W-0 R/W-0 R-0 R-0 R-0

— — —USEDT DL<2:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-1 R/W-0 R/C-0 R/W-0 R/W-0 R/W-0

SATA SATB SATDW ACCSAT IPL3(2) PSV RND IF

bit 7 bit 0

Legend: C = Clear only bit

R = Readable bit W = Writable bit -n = Value at POR ‘1’ = Bit is set

0’ = Bit is cleared ‘x = Bit is unknown U = Unimplemented bit, read as ‘0’

bit 3 IPL3: CPU Interrupt Priority Level Status bit 3(2)

1 = CPU interrupt priority level is greater than 7

0 = CPU interrupt priority level is 7 or less

Note 1: For complete register details, see Register 3-2.

2: The IPL3 bit is concatenated with the IPL<2:0> bits (SR<7:5>) to form the CPU Interrupt Priority Level.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

NSTDIS OVAERR OVBERR COVAERR COVBERR OVATE OVBTE COVTE

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0

SFTACERR DIV0ERR DMACERR MATHERR ADDRERR STKERR OSCFAIL —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 NSTDIS: Interrupt Nesting Disable bit

1 = Interrupt nesting is disabled

0 = Interrupt nesting is enabled

bit 14 OVAERR: Accumulator A Overflow Trap Flag bit

1 = Trap was caused by overflow of Accumulator A

0 = Trap was not caused by overflow of Accumulator A

bit 13 OVBERR: Accumulator B Overflow Trap Flag bit

1 = Trap was caused by overflow of Accumulator B

0 = Trap was not caused by overflow of Accumulator B

bit 12 COVAERR: Accumulator A Catastrophic Overflow Trap Flag bit

1 = Trap was caused by catastrophic overflow of Accumulator A

0 = Trap was not caused by catastrophic overflow of Accumulator A

bit 11 COVBERR: Accumulator B Catastrophic Overflow Trap Flag bit

1 = Trap was caused by catastrophic overflow of Accumulator B

0 = Trap was not caused by catastrophic overflow of Accumulator B

bit 10 OVATE: Accumulator A Overflow Trap Enable bit

1 = Trap overflow of Accumulator A

0 = Trap disabled

bit 9 OVBTE: Accumulator B Overflow Trap Enable bit

1 = Trap overflow of Accumulator B

0 = Trap disabled

bit 8 COVTE: Catastrophic Overflow Trap Enable bit

1 = Trap on catastrophic overflow of Accumulator A or B enabled

0 = Trap disabled

bit 7 SFTACERR: Shift Accumulator Error Status bit

1 = Math error trap was caused by an invalid accumulator shift

0 = Math error trap was not caused by an invalid accumulator shift

bit 6 DIV0ERR: Arithmetic Error Status bit

1 = Math error trap was caused by a divide by zero

0 = Math error trap was not caused by a divide by zero

bit 5 DMACERR: DMA Controller Error Status bit

1 = DMA controller error trap has occurred

0 = DMA controller error trap has not occurred

bit 4 MATHERR: Arithmetic Error Status bit

1 = Math error trap has occurred

0 = Math error trap has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 3 ADDRERR: Address Error Trap Status bit

1 = Address error trap has occurred

0 = Address error trap has not occurred

bit 2 STKERR: Stack Error Trap Status bit

1 = Stack error trap has occurred

0 = Stack error trap has not occurred

bit 1 OSCFAIL: Oscillator Failure Trap Status bit

1 = Oscillator failure trap has occurred

0 = Oscillator failure trap has not occurred

bit 0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R-0 U-0 U-0 U-0 U-0 U-0 U-0

ALTIVT DISI — — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — INT2EP INT1EP INT0EP

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ALTIVT: Enable Alternate Interrupt Vector Table bit

1 = Use alternate vector table

0 = Use standard (default) vector table

bit 14 DISI: DISI Instruction Status bit

1 = DISI instruction is active

0 = DISI instruction is not active

bit 13-3 Unimplemented: Read as ‘0’

bit 2 INT2EP: External Interrupt 2 Edge Detect Polarity Select bit

1 = Interrupt on negative edge

0 = Interrupt on positive edge

bit 1 INT1EP: External Interrupt 1 Edge Detect Polarity Select bit

1 = Interrupt on negative edge

0 = Interrupt on positive edge

bit 0 INT0EP: External Interrupt 0 Edge Detect Polarity Select bit

1 = Interrupt on negative edge

0 = Interrupt on positive edge

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— DMA1IF AD1IF U1TXIF U1RXIF SPI1IF SPI1EIF T3IF

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

T2IF OC2IF IC2IF DMA0IF T1IF OC1IF IC1IF INT0IF

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 DMA1IF: DMA Channel 1 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 13 AD1IF: ADC1 Conversion Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 12 U1TXIF: UART1 Transmitter Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 11 U1RXIF: UART1 Receiver Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 10 SPI1IF: SPI1 Event Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 9 SPI1EIF: SPI1 Error Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 8 T3IF: Timer3 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 7 T2IF: Timer2 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 6 OC2IF: Output Compare Channel 2 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 5 IC2IF: Input Capture Channel 2 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 4 DMA0IF: DMA Channel 0 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 3 T1IF: Timer1 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 OC1IF: Output Compare Channel 1 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 1 IC1IF: Input Capture Channel 1 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 0 INT0IF: External Interrupt 0 Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

U2TXIF U2RXIF INT2IF T5IF T4IF OC4IF OC3IF DMA2IF

bit 15 bit 8

R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

IC8IF IC7IF — INT1IF CNIF CMIF MI2C1IF SI2C1IF

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 U2TXIF: UART2 Transmitter Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 14 U2RXIF: UART2 Receiver Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 13 INT2IF: External Interrupt 2 Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 12 T5IF: Timer5 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 11 T4IF: Timer4 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 10 OC4IF: Output Compare Channel 4 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 9 OC3IF: Output Compare Channel 3 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 8 DMA2IF: DMA Channel 2 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 7 IC8IF: Input Capture Channel 8 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 6 IC7IF: Input Capture Channel 7 Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 5 Unimplemented: Read as ‘0’

bit 4 INT1IF: External Interrupt 1 Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 3 CNIF: Input Change Notification Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 CMIF: Comparator Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 1 MI2C1IF: I2C1 Master Events Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 0 SI2C1IF: I2C1 Slave Events Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0

—DMA4IFPMPIF— — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —DMA3IFC1IF

(1) C1RXIF(1) SPI2IF SPI2EIF

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 DMA4IF: DMA Channel 4 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 13 PMPIF: Parallel Master Port Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 12-5 Unimplemented: Read as ‘0’

bit 4 DMA3IF: DMA Channel 3 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 3 C1IF: ECAN1 Event Interrupt Flag Status bit(1)

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 2 C1RXIF: ECAN1 Receive Data Ready Interrupt Flag Status bit(1)

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 1 SPI2IF: SPI2 Event Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 0 SPI2EIF: SPI2 Error Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

Note 1: Interrupts are disabled on devices without an ECAN™ module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 U-0

FLTA1IF RTCIF DMA5IF —— QEI1IF PWM1IF —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 FLTA1IF: PWM1 Fault A Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 14 RTCIF: Real-Time Clock and Calendar Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 13 DMA5IF: DMA Channel 5 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 12-11 Unimplemented: Read as ‘0’

bit 10 QEI1IF: QEI1 Event Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 9 PWM1IF: PWM1 Event Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 8-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 U-0

DAC1LIF(2) DAC1RIF(2) —— QEI2IF FLTA2IF PWM2IF —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0

—C1TXIF

(1) DMA7IF DMA6IF CRCIF U2EIF U1EIF —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 DAC1LIF: DAC Left Channel Interrupt Flag Status bit(2)

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 14 DAC1RIF: DAC Right Channel Interrupt Flag Status bit(2)

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 13-12 Unimplemented: Read as ‘0’

bit 11 QEI2IF: QEI2 Event Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 10 FLTA2IF: PWM2 Fault A Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 9 PWM2IF: PWM2 Error Interrupt Enable bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 8-7 Unimplemented: Read as ‘0’

bit 6 C1TXIF: ECAN1 Transmit Data Request Interrupt Flag Status bit(1)

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 5 DMA7IF: DMA Channel 7 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 4 DMA6IF: DMA Channel 6 Data Transfer Complete Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 3 CRCIF: CRC Generator Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 2 U2EIF: UART2 Error Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 1 U1EIF: UART1 Error Interrupt Flag Status bit

1 = Interrupt request has occurred

0 = Interrupt request has not occurred

bit 0 Unimplemented: Read as ‘0’

Note 1: Interrupts are disabled on devices without an ECAN™ module.

2: Interrupts are disabled on devices without an Audio DAC module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— DMA1IE AD1IE U1TXIE U1RXIE SPI1IE SPI1EIE T3IE

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

T2IE OC2IE IC2IE DMA0IE T1IE OC1IE IC1IE INT0IE

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 DMA1IE: DMA Channel 1 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 13 AD1IE: ADC1 Conversion Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 12 U1TXIE: UART1 Transmitter Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 11 U1RXIE: UART1 Receiver Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 10 SPI1IE: SPI1 Event Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 9 SPI1EIE: SPI1 Error Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 8 T3IE: Timer3 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 7 T2IE: Timer2 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 6 OC2IE: Output Compare Channel 2 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 5 IC2IE: Input Capture Channel 2 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 4 DMA0IE: DMA Channel 0 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 3 T1IE: Timer1 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 OC1IE: Output Compare Channel 1 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 1 IC1IE: Input Capture Channel 1 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 0 INT0IE: External Interrupt 0 Flag Status bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

U2TXIE U2RXIE INT2IE T5IE T4IE OC4IE OC3IE DMA2IE

bit 15 bit 8

R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

IC8IE IC7IE — INT1IE CNIE CMIE MI2C1IE SI2C1IE

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 U2TXIE: UART2 Transmitter Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 14 U2RXIE: UART2 Receiver Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 13 INT2IE: External Interrupt 2 Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 12 T5IE: Timer5 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 11 T4IE: Timer4 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 10 OC4IE: Output Compare Channel 4 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 9 OC3IE: Output Compare Channel 3 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 8 DMA2IE: DMA Channel 2 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 7 IC8IE: Input Capture Channel 8 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 6 IC7IE: Input Capture Channel 7 Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 5 Unimplemented: Read as ‘0’

bit 4 INT1IE: External Interrupt 1 Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 3 CNIE: Input Change Notification Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 CMIE: Comparator Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 1 MI2C1IE: I2C1 Master Events Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 0 SI2C1IE: I2C1 Slave Events Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0

—DMA4IEPMPIE— — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —DMA3IEC1IE

(1) C1RXIE(1) SPI2IE SPI2EIE

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 DMA4IE: DMA Channel 4 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 13 PMPIE: Parallel Master Port Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 12-5 Unimplemented: Read as ‘0’

bit 4 DMA3IE: DMA Channel 3 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 3 C1IE: ECAN1 Event Interrupt Enable bit(1)

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 2 C1RXIE: ECAN1 Receive Data Ready Interrupt Enable bit(1)

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 1 SPI2IE: SPI2 Event Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 0 SPI2EIE: SPI2 Error Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

Note 1: Interrupts are disabled on devices without an ECAN™ module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 U-0

FLTA1IE RTCIE DMA5IE ——QEI1IEPWM1IE—

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 FLTA1IE: PWM1 Fault A Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 14 RTCIE: Real-Time Clock and Calendar Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 13 DMA5IE: DMA Channel 5 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 12-11 Unimplemented: Read as ‘0’

bit 10 QEI1IE: QEI1 Event Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 9 PWM1IE: PWM1 Event Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 8-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 U-0

DAC1LIE(2) DAC1RIE(2) —— QEI2IE FLTA2IE PWM2IE —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0

—C1TXIE

(1) DMA7IE DMA6IE CRCIE U2EIE U1EIE —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 DAC1LIE: DAC Left Channel Interrupt Enable bit(2)

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 14 DAC1RIE: DAC Right Channel Interrupt Enable bit(2)

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 13-12 Unimplemented: Read as ‘0’

bit 11 QEI2IE: QEI2 Event Interrupt Flag Status bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 10 FLTA2IE: PWM2 Fault A Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 9 PWM2IE: PWM2 Error Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 8-7 Unimplemented: Read as ‘0’

bit 6 C1TXIE: ECAN1 Transmit Data Request Interrupt Enable bit(1)

1 = Interrupt request occurred

0 = Interrupt request not occurred

bit 5 DMA7IE: DMA Channel 7 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 4 DMA6IE: DMA Channel 6 Data Transfer Complete Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 3 CRCIE: CRC Generator Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 2 U2EIE: UART2 Error Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 1 U1EIE: UART1 Error Interrupt Enable bit

1 = Interrupt request enabled

0 = Interrupt request not enabled

bit 0 Unimplemented: Read as ‘0’

Note 1: Interrupts are disabled on devices without an ECAN™ module.

2: Interrupts are disabled on devices without an Audio DAC module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— T1IP<2:0> —OC1IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

—IC1IP<2:0>— INT0IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 T1IP<2:0>: Timer1 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 OC1IP<2:0>: Output Compare Channel 1 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 IC1IP<2:0>: Input Capture Channel 1 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 INT0IP<2:0>: External Interrupt 0 Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— T2IP<2:0> —OC2IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

—IC2IP<2:0>—DMA0IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 T2IP<2:0>: Timer2 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 OC2IP<2:0>: Output Compare Channel 2 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 IC2IP<2:0>: Input Capture Channel 2 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 DMA0IP<2:0>: DMA Channel 0 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— U1RXIP<2:0> — SPI1IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— SPI1EIP<2:0> — T3IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 U1RXIP<2:0>: UART1 Receiver Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 SPI1IP<2:0>: SPI1 Event Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 SPI1EIP<2:0>: SPI1 Error Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 T3IP<2:0>: Timer3 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — —DMA1IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

—AD1IP<2:0>— U1TXIP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 DMA1IP<2:0>: DMA Channel 1 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 AD1IP<2:0>: ADC1 Conversion Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 U1TXIP<2:0>: UART1 Transmitter Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— CNIP<2:0> — CMIP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— MI2C1IP<2:0> — SI2C1IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 CNIP<2:0>: Change Notification Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 CMIP<2:0>: Comparator Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 MI2C1IP<2:0>: I2C1 Master Events Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 SI2C1IP<2:0>: I2C1 Slave Events Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

—IC8IP<2:0>— IC7IP<2:0>

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — — INT1IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 IC8IP<2:0>: Input Capture Channel 8 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 IC7IP<2:0>: Input Capture Channel 7 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7-3 Unimplemented: Read as ‘0’

bit 2-0 INT1IP<2:0>: External Interrupt 1 Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— T4IP<2:0> —OC4IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— OC3IP<2:0> —DMA2IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 T4IP<2:0>: Timer4 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 OC4IP<2:0>: Output Compare Channel 4 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 OC3IP<2:0>: Output Compare Channel 3 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 DMA2IP<2:0>: DMA Channel 2 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— U2TXIP<2:0> — U2RXIP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— INT2IP<2:0> — T5IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 U2TXIP<2:0>: UART2 Transmitter Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 U2RXIP<2:0>: UART2 Receiver Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 INT2IP<2:0>: External Interrupt 2 Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 T5IP<2:0>: Timer5 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— C1IP<2:0>(1) — C1RXIP<2:0>(1)

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— SPI2IP<2:0> — SPI2EIP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 C1IP<2:0>: ECAN1 Event Interrupt Priority bits(1)

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 C1RXIP<2:0>: ECAN1 Receive Data Ready Interrupt Priority bits(1)

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 SPI2IP<2:0>: SPI2 Event Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 SPI2EIP<2:0>: SPI2 Error Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

Note 1: Interrupts are disabled on devices without an ECAN™ module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — —DMA3IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-3 Unimplemented: Read as ‘0’

bit 2-0 DMA3IP<2:0>: DMA Channel 3 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — —DMA4IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0

—PMPIP<2:0>— — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 DMA4IP<2:0>: DMA Channel 4 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 PMPIP<2:0>: Parallel Master Port Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — — QEI1IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0

— PWM1IP<2:0> — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 QEI1IP<2:0>: QEI1 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 PWM1IP<2:0>: PWM1 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

—FLTA1IP<2:0>— RTCIP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0

— DMA5IP<2:0> — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 FLTA1IP<2:0>: PWM Fault A Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 RTCIP<2:0>: Real-Time Clock and Calendar Interrupt Flag Status bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 DMA5IP<2:0>: DMA Channel 5 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— CRCIP<2:0> — U2EIP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0

—U1EIP<2:0>— — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 CRCIP<2:0>: CRC Generator Error Interrupt Flag Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 U2EIP<2:0>: UART2 Error Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 U1EIP<2:0>: UART1 Error Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-1 R/W-0 R/W-0

— — — — — C1TXIP<2:0>(1)

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-1 R/W-0 R/W-0

— DMA7IP<2:0> —DMA6IP<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 C1TXIP<2:0>: ECAN1 Transmit Data Request Interrupt Priority bits(1)

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 DMA7IP<2:0>: DMA Channel 7 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3 Unimplemented: Read as ‘0’

bit 2-0 DMA6IP<2:0>: DMA Channel 6 Data Transfer Complete Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

Note 1: Interrupts are disabled on devices without an ECAN™ module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0

— QEI2IP<2:0> — FLTA2IP<2:0>

bit 15 bit 8

U-0 R/W-1 R/W-0 R/W-0 U-0 U-0 U-0 U-0

— PWM2IP<2:0> — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 QEI2IP<2:0>: QEI2 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 FLTA2IP<2:0>: PWM2 Fault A Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7 Unimplemented: Read as ‘0’

bit 6-4 PWM2IP<2:0>: PWM2 Interrupt Priority bits

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-1 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0

— DAC1LIP<2:0>(1) — DAC1RIP<2:0>(1)

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 DAC1LIP<2:0>: DAC Left Channel Interrupt Flag Status bit(1)

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 11 Unimplemented: Read as ‘0’

bit 10-8 DAC1RIP<2:0>: DAC Right Channel Interrupt Flag Status bit(1)

111 = Interrupt is priority 7 (highest priority interrupt)

•

001 = Interrupt is priority 1

000 = Interrupt source is disabled

bit 7-0 Unimplemented: Read as ‘0’

Note 1: Interrupts are disabled on devices without an Audio DAC module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 R-0 R-0 R-0 R-0

— — — —ILR<3:0>

bit 15 bit 8

U-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

— VECNUM<6:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 Unimplemented: Read as ‘0’

bit 11-8 ILR<3:0>: New CPU Interrupt Priority Level bits

1111 = CPU Interrupt Priority Level is 15

•

0001 = CPU Interrupt Priority Level is 1

0000 = CPU Interrupt Priority Level is 0

bit 7 Unimplemented: Read as ‘0’

bit 6-0 VECNUM<6:0>: Vector Number of Pending Interrupt bits

0111111 = Interrupt Vector pending is number 135

•

0000001 = Interrupt Vector pending is number 9

0000000 = Interrupt Vector pending is number 8

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

7.6 Interrupt Setup Procedures

7.6.1 INITIALIZATION

To configure an interrupt source at initialization:

1. Set the NSTDIS bit (INTCON1<15>) if nested

interrupts are not desired.

2. Select the user-assigned priority level for the

interrupt source by writing the control bits in the

appropriate IPCx register. The priority level

depends on the specific application and type of

interrupt source. If multiple priority levels are not

desired, the IPCx register control bits for all

enabled interrupt sources can be programmed

to the same non-zero value.

3. Clear the interrupt flag status bit associated with

the peripheral in the associated IFSx register.

4. Enable the interrupt source by setting the

interrupt enable control bit associated with the

source in the appropriate IECx register.

7.6.2 INTERRUPT SERVICE ROUTINE

The method used to declare an ISR and initialize the

IVT with the correct vector address depends on the

programming language (C or assembler) and the

language development tool suite used to develop the

application.

In general, the user application must clear the interrupt

flag in the appropriate IFSx register for the source of

interrupt that the ISR handles. Otherwise, the program

re-enters the ISR immediately after exiting the routine.

If the ISR is coded in assembly language, it must be

terminated using a RETFIE instruction to unstack the

saved PC value, SRL value and old CPU priority level.

7.6.3 TRAP SERVICE ROUTINE

A Trap Service Routine (TSR) is coded like an ISR,

except that the appropriate trap status flag in the

INTCON1 register must be cleared to avoid re-entry

into the TSR.

7.6.4 INTERRUPT DISABLE

All user interrupts can be disabled using this

procedure:

1. Push the current SR value onto the software

stack using the PUSH instruction.

2. Force the CPU to priority level 7 by inclusive

ORing the value OEh with SRL.

To enable user interrupts, the POP instruction can be

used to restore the previous SR value.

The DISI instruction provides a convenient way to

disable interrupts of priority levels 1-6 for a fixed period

of time. Level 7 interrupt sources are not disabled by

the DISI instruction.

Note: At a device Reset, the IPCx registers are

initialized such that all user interrupt

sources are assigned to priority level 4. Note: Only user interrupts with a priority level of

7 or lower can be disabled. Trap sources

(level 8-level 15) cannot be disabled.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

8.0 DIRECT MEMORY ACCESS

(DMA)

Direct Memory Access (DMA) is a very efficient

mechanism of copying data between peripheral SFRs

(e.g., UART Receive register, Input Capture 1 buffer),

and buffers or variables stored in RAM, with minimal

CPU intervention. The DMA controller can

automatically copy entire blocks of data without

requiring the user software to read or write the

peripheral Special Function Registers (SFRs) every

time a peripheral interrupt occurs. The DMA controller

uses a dedicated bus for data transfers and therefore,

does not steal cycles from the code execution flow of

the CPU. To exploit the DMA capability, the

corresponding user buffers or variables must be

located in DMA RAM.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 peripherals that

can utilize DMA are listed in Table 8-1.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 38. “Direct

Memory Access (DMA) (Part III)”

(DS70215) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

TABLE 8-1: DMA CHANNEL TO PERIPHERAL ASSOCIATIONS

Peripheral to DMA Association DMAxREQ Register

IRQSEL<6:0> Bits

DMAxPAD Register

Values to Read From

Peripheral

DMAxPAD Register

Values to Write to

Peripheral

INT0 – External Interrupt 0 0000000 ——

IC1 – Input Capture 1 0000001 0x0140 (IC1BUF) —

OC1 – Output Compare 1 Data 0000010 — 0x0182 (OC1R)

OC1 – Output Compare 1 Secondary Data 0000010 — 0x0180 (OC1RS)

IC2 – Input Capture 2 0000101 0x0144 (IC2BUF) —

OC2 – Output Compare 2 Data 0000110 — 0x0188 (OC2R)

OC2 – Output Compare 2 Secondary Data 0000110 — 0x0186 (OC2RS)

TMR2 – Timer2 0000111 ——

TMR3 – Timer3 0001000 ——

SPI1 – Transfer Done 0001010 0x0248 (SPI1BUF) 0x0248 (SPI1BUF)

UART1RX – UART1 Receiver 0001011 0x0226 (U1RXREG) —

UART1TX – UART1 Transmitter 0001100 — 0x0224 (U1TXREG)

ADC1 – ADC1 Convert Done 0001101 0x0300 (ADC1BUF0) —

UART2RX – UART2 Receiver 0011110 0x0236 (U2RXREG) —

UART2TX – UART2 Transmitter 0011111 — 0x0234 (U2TXREG)

SPI2 – Transfer Done 0100001 0x0268 (SPI2BUF) 0x0268 (SPI2BUF)

ECAN1 – RX Data Ready 0100010 0x0440 (C1RXD) —

PMP - Master Data Transfer 0101101 0x0608 (PMDIN1) 0x0608 (PMDIN1)

ECAN1 – TX Data Request 1000110 — 0x0442 (C1TXD)

DAC1 - Right Data Output 1001110 — 0x3F6 (DAC1RDAT)

DAC2 - Left Data Output 1001111 — 0x03F8 (DAC1LDAT)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

The DMA controller features eight identical data

transfer channels.

Each channel has its own set of control and status

registers. Each DMA channel can be configured to

copy data either from buffers stored in dual port DMA

RAM to peripheral SFRs, or from peripheral SFRs to

buffers in DMA RAM.

The DMA controller supports the following features:

• Eight DMA channels

• Register Indirect with Post-increment Addressing

mode

• Register Indirect without Post-increment

Addressing mode

• Peripheral Indirect Addressing mode (peripheral

generates destination address)

• CPU interrupt after half or full block transfer

complete

• Byte or word transfers

• Fixed priority channel arbitration

• Manual (software) or Automatic (peripheral DMA

requests) transfer initiation

• One-Shot or Auto-Repeat block transfer modes

• Ping-Pong mode (automatic switch between two

DPSRAM start addresses after each block

transfer complete)

• DMA request for each channel can be selected

from any supported interrupt source

• Debug support features

For each DMA channel, a DMA interrupt request is

generated when a block transfer is complete.

Alternatively, an interrupt can be generated when half of

the block has been filled.

FIGURE 8-1: TOP LEVEL SYSTEM ARCHITECTURE USING A DEDICATED TRANSACTION BUS

CPU

SRAM DMA RAM

CPU Peripheral DS Bus

Peripheral 3

DMA

Peripheral

Non-DMA

SRAM X-Bus

PORT 2PORT 1

Peripheral 1

DMA

Ready

Peripheral 2

DMA

Ready

DMA DS Bus

CPU DMA

CPU DMA CPU DMA

Peripheral Indirect Address

DMA

Control

DMA Controller

DMA

Channels

Note: CPU and DMA address buses are not shown for clarity.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

8.1 DMA Resources

Many useful resources related to DMA are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

8.1.1 KEY RESOURCES

•Section 38. “Direct Memory Access (Part III)”

(DS70215)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

8.2 DMAC Registers

Each DMAC Channel x (x = 0, 1, 2, 3, 4, 5, 6 or 7)

contains the following registers:

• A 16-bit DMA Channel Control register

(DMAxCON)

• A 16-bit DMA Channel IRQ Select register

(DMAxREQ)

• A 16-bit DMA RAM Primary Start Address register

(DMAxSTA)

• A 16-bit DMA RAM Secondary Start Address

• A 16-bit DMA Peripheral Address register

(DMAxPAD)

• A 10-bit DMA Transfer Count register (DMAxCNT)

An additional pair of status registers, DMACS0 and

DMACS1, are common to all DMAC channels.

DMACS0 contains the DMA RAM and SFR write

collision flags, XWCOLx and PWCOLx, respectively.

DMACS1 indicates DMA channel and Ping-Pong mode

status.

The DMAxCON, DMAxREQ, DMAxPAD and

DMAxCNT are all conventional read/write registers.

Reads of DMAxSTA or DMAxSTB reads the contents

of the DMA RAM Address register. Writes to

DMAxSTA or DMAxSTB write to the registers. This

allows the user to determine the DMA buffer pointer

value (address) at any time.

The interrupt flags (DMAxIF) are located in an IFSx

interrupt enable control bits (DMAxIE) are located in

an IECx register in the interrupt controller, and the

corresponding interrupt priority control bits (DMAxIP)

are located in an IPCx register in the interrupt

controller.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0

CHEN SIZE DIR HALF NULLW — — —

bit 15 bit 8

U-0 U-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0

——AMODE<1:0>—— MODE<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 CHEN: Channel Enable bit

1 = Channel enabled

0 = Channel disabled

bit 14 SIZE: Data Transfer Size bit

1 = Byte

0 = Word

bit 13 DIR: Transfer Direction bit (source/destination bus select)

1 = Read from DMA RAM address, write to peripheral address

0 = Read from peripheral address, write to DMA RAM address

bit 12 HALF: Early Block Transfer Complete Interrupt Select bit

1 = Initiate block transfer complete interrupt when half of the data has been moved

0 = Initiate block transfer complete interrupt when all of the data has been moved

bit 11 NULLW: Null Data Peripheral Write Mode Select bit

1 = Null data write to peripheral in addition to DMA RAM write (DIR bit must also be clear)

0 = Normal operation

bit 10-6 Unimplemented: Read as ‘0’

bit 5-4 AMODE<1:0>: DMA Channel Operating Mode Select bits

11 = Reserved (acts as Peripheral Indirect Addressing mode)

10 = Peripheral Indirect Addressing mode

01 = Register Indirect without Post-Increment mode

00 = Register Indirect with Post-Increment mode

bit 3-2 Unimplemented: Read as ‘0’

bit 1-0 MODE<1:0>: DMA Channel Operating Mode Select bits

11 = One-Shot, Ping-Pong modes enabled (one block transfer from/to each DMA RAM buffer)

10 = Continuous, Ping-Pong modes enabled

01 = One-Shot, Ping-Pong modes disabled

00 = Continuous, Ping-Pong modes disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

FORCE(1) — — — — — — —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— IRQSEL<6:0>(2)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 FORCE: Force DMA Transfer bit(1)

1 = Force a single DMA transfer (Manual mode)

0 = Automatic DMA transfer initiation by DMA request

bit 14-7 Unimplemented: Read as ‘0’

bit 6-0 IRQSEL<6:0>: DMA Peripheral IRQ Number Select bits(2)

0000000-1111111 = DMAIRQ0-DMAIRQ127 selected to be Channel DMAREQ

Note 1: This bit cannot be cleared by the user. It is cleared by hardware when the forced DMA transfer is

complete.

2: Refer to Table 7-1 for a complete listing of IRQ numbers for all interrupt sources.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

STA<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

STA<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 STA<15:0>: Primary DMA RAM Start Address bits (source or destination)

Note 1: A read of this address register returns the current contents of the DMA RAM Address register, not the

contents written to STA<15:0>. If the channel is enabled (i.e., active), writes to this register may result in

unpredictable behavior of the DMA channel and should be avoided.

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

STB<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

STB<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 STB<15:0>: Secondary DMA RAM Start Address bits (source or destination)

Note 1: A read of this address register returns the current contents of the DMA RAM Address register, not the

contents written to STB<15:0>. If the channel is enabled (i.e., active), writes to this register may result in

unpredictable behavior of the DMA channel and should be avoided.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PAD<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PAD<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 PAD<15:0>: Peripheral Address Register bits

Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the

DMA channel and should be avoided.

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

— — — — — — CNT<9:8>(2)

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CNT<7:0>(2)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-10 Unimplemented: Read as ‘0’

bit 9-0 CNT<9:0>: DMA Transfer Count Register bits(2)

Note 1: If the channel is enabled (i.e., active), writes to this register may result in unpredictable behavior of the

DMA channel and should be avoided.

2: Number of DMA transfers = CNT<9:0> + 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

PWCOL7 PWCOL6 PWCOL5 PWCOL4 PWCOL3 PWCOL2 PWCOL1 PWCOL0

bit 15 bit 8

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

XWCOL7 XWCOL6 XWCOL5 XWCOL4 XWCOL3 XWCOL2 XWCOL1 XWCOL0

bit 7 bit 0

Legend: C = Clear only bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 PWCOL7: Channel 7 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 14 PWCOL6: Channel 6 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 13 PWCOL5: Channel 5 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 12 PWCOL4: Channel 4 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 11 PWCOL3: Channel 3 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 10 PWCOL2: Channel 2 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 9 PWCOL1: Channel 1 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 8 PWCOL0: Channel 0 Peripheral Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 7 XWCOL7: Channel 7 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 6 XWCOL6: Channel 6 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 5 XWCOL5: Channel 5 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 4 XWCOL4: Channel 4 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 3 XWCOL3: Channel 3 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 2 XWCOL2: Channel 2 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 1 XWCOL1: Channel 1 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

bit 0 XWCOL0: Channel 0 DMA RAM Write Collision Flag bit

1 = Write collision detected

0 = No write collision detected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 R-1 R-1 R-1 R-1

— — — — LSTCH<3:0>

bit 15 bit 8

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

PPST7 PPST6 PPST5 PPST4 PPST3 PPST2 PPST1 PPST0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 Unimplemented: Read as ‘0’

bit 11-8 LSTCH<3:0>: Last DMA Channel Active bits

1111 = No DMA transfer has occurred since system Reset

1110-1000 = Reserved

0111 = Last data transfer was by DMA Channel 7

0110 = Last data transfer was by DMA Channel 6

0101 = Last data transfer was by DMA Channel 5

0100 = Last data transfer was by DMA Channel 4

0011 = Last data transfer was by DMA Channel 3

0010 = Last data transfer was by DMA Channel 2

0001 = Last data transfer was by DMA Channel 1

0000 = Last data transfer was by DMA Channel 0

bit 7 PPST7: Channel 7 Ping-Pong Mode Status Flag bit

1 = DMA7STB register selected

0 = DMA7STA register selected

bit 6 PPST6: Channel 6 Ping-Pong Mode Status Flag bit

1 = DMA6STB register selected

0 = DMA6STA register selected

bit 5 PPST5: Channel 5 Ping-Pong Mode Status Flag bit

1 = DMA5STB register selected

0 = DMA5STA register selected

bit 4 PPST4: Channel 4 Ping-Pong Mode Status Flag bit

1 = DMA4STB register selected

0 = DMA4STA register selected

bit 3 PPST3: Channel 3 Ping-Pong Mode Status Flag bit

1 = DMA3STB register selected

0 = DMA3STA register selected

bit 2 PPST2: Channel 2 Ping-Pong Mode Status Flag bit

1 = DMA2STB register selected

0 = DMA2STA register selected

bit 1 PPST1: Channel 1 Ping-Pong Mode Status Flag bit

1 = DMA1STB register selected

0 = DMA1STA register selected

bit 0 PPST0: Channel 0 Ping-Pong Mode Status Flag bit

1 = DMA0STB register selected

0 = DMA0STA register selected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

DSADR<15:8>

bit 15 bit 8

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

DSADR<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 DSADR<15:0>: Most Recent DMA RAM Address Accessed by DMA Controller bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

9.0 OSCILLATOR CONFIGURATION

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 oscillator system

provides:

• External and internal oscillator options as clock

sources

• An on-chip Phase-Locked Loop (PLL) to scale the

internal operating frequency to the required

system clock frequency

• An internal FRC oscillator that can also be used

with the PLL, thereby allowing full-speed

operation without any external clock generation

hardware

• Clock switching between various clock sources

• Programmable clock postscaler for system power

savings

• A Fail-Safe Clock Monitor (FSCM) that detects

clock failure and takes fail-safe measures

• An Oscillator Control register (OSCCON)

• Non-volatile Configuration bits for main oscillator

selection

• An auxiliary crystal oscillator for audio DAC

A simplified diagram of the oscillator system is shown

in Figure 9-1.

FIGURE 9-1: OSCILLATOR SYSTEM DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 39. “Oscillator

(Part III)” (DS70216) of the “dsPIC33F/

PIC24H Family Reference Manual”,

which is available from the Microchip web

site (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note 1: See Figure 9-2 for PLL details.

2: If the Oscillator is used with XT or HS modes, an external parallel resistor with the value of 1 MΩ must be connected.

3: The term FP refers to the clock source for all the peripherals, while FCY refers to the clock source for the CPU. Throughout this

document FCY and FP are used interchangeably, except in the case of Doze mode. FP and FCY will be different when Doze mode

is used in any ratio other than 1:1, which is the default.

Secondary Oscillator

LPOSCEN

SOSCO

SOSCI

Timer1

XTPLL, HSPLL,

XT, HS, EC

FRCDIV<2:0>

PWRT,

FSCM

FRCDIVN

SOSC

FRCDIV16

ECPLL, FRCPLL

NOSC<2:0> FNOSC<2:0>

Reset

FRC

Oscillator

LPRC

Oscillator

DOZE<2:0>

S1/S3

FRC

LPRC

÷16

Clock Switch

Clock Fail

÷2

TUN<5:0>

PLL

FCY(3)

FOSC

FRCDIV

DOZE

÷N ACLK

POSCCLK

Auxiliary Oscillator

SELACK APSTSCLR<2:0>

DAC

FOSC(1)

AOSCCLK

AOSCMD<1:0>

ASRCSEL

FOSC(1)

POSCCLK

OSC2

OSC1 Primary Oscillator

R(2)

POSCMD<1:0> FP(3)

WDT,

3.5 MHz ≤ AUX_OSC_FIN ≤ 10 MHz

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

9.1 CPU Clocking System

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices provide

seven system clock options:

• Fast RC (FRC) Oscillator

• FRC Oscillator with Phase Locked Loop (PLL)

• Primary (XT, HS or EC) Oscillator

• Primary Oscillator with PLL

• Secondary (LP) Oscillator

• Low-Power RC (LPRC) Oscillator

• FRC Oscillator with postscaler

9.1.1 SYSTEM CLOCK SOURCES

The Fast RC (FRC) internal oscillator runs at a nominal

frequency of 7.37 MHz. User software can tune the

FRC frequency. User software can optionally specify a

factor (ranging from 1:2 to 1:256) by which the FRC

clock frequency is divided. This factor is selected using

the FRCDIV<2:0> bits (CLKDIV<10:8>).

The primary oscillator can use one of the following as

its clock source:

• Crystal (XT): Crystals and ceramic resonators in

the range of 3 MHz to 10 MHz. The crystal is

connected to the OSC1 and OSC2 pins.

• High-Speed Crystal (HS): Crystals in the range of

10 MHz to 40 MHz. The crystal is connected to

the OSC1 and OSC2 pins.

• External Clock (EC): External clock signal is

directly applied to the OSC1 pin.

The secondary (LP) oscillator is designed for low power

and uses a 32.768 kHz crystal or ceramic resonator.

The LP oscillator uses the SOSCI and SOSCO pins.

The Low-Power RC (LPRC) internal oscIllator runs at a

nominal frequency of 32.768 kHz. It is also used as a

reference clock by the Watchdog Timer (WDT) and

Fail-Safe Clock Monitor (FSCM).

The clock signals generated by the FRC and primary

oscillators can be optionally applied to an on-chip PLL

to provide a wide range of output frequencies for device

operation. PLL configuration is described in

Section 9.1.4 “PLL Configuration”.

The FRC frequency depends on the FRC accuracy

(see Table 31-19) and the value of the FRC Oscillator

Tuning register (see Register 9-4).

9.1.2 SYSTEM CLOCK SELECTION

The oscillator source used at a device Power-on

Reset event is selected by using the Configuration bit

settings. The oscillator Configuration bit settings are

located in the Configuration registers in the program

memory. (Refer to Section 28.1 “Configuration

Bits” for further details.) The Initial Oscillator

Selection Configuration bits, FNOSC<2:0>

(FOSCSEL<2:0>), and the Primary Oscillator Mode

Select Configuration bits, POSCMD<1:0>

(FOSC<1:0>), select the oscillator source that is used

at a Power-on Reset. The FRC primary oscillator is

the default (unprogrammed) selection.

The Configuration bits allow users to choose among 12

different clock modes, shown in Table 9-1.

The output of the oscillator (or the output of the PLL

if a PLL mode has been selected) FOSC is divided by

2 to generate the device instruction clock (FCY) and

the peripheral clock time base (FP). FCY defines the

operating speed of the device, and speeds up to

40 MHz are supported by the dsPIC33FJ32MC302/

304, dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 architecture.

Instruction execution speed or device operating

frequency, FCY, is given by:

EQUATION 9-1: DEVICE OPERATING

FREQUENCY

9.1.3 AUXILIARY OSCILLATOR

The Auxiliary Oscillator (AOSC) can be used for

peripheral that needs to operate at a frequency

unrelated to the system clock such as DAC.

The Auxiliary Oscillator can use one of the following as

its clock source:

• Crystal (XT): Crystal and ceramic resonators in

the range of 3 MHz to 10 MHz. The crystal is

connected to the SOCI and SOSCO pins.

• High-Speed Crystal (HS): Crystals in the range of

10 to 40 Hz. The crystal is connected to the

SOSCI and SOSCO pins.

• External Clock (EC): External clock signal up to

64 MHz. The external clock signal is directly

applied to SOSCI pin.

FCY FOSC

-------------=

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

9.1.4 PLL CONFIGURATION

The primary oscillator and internal FRC oscillator can

optionally use an on-chip PLL to obtain higher speeds

of operation. The PLL provides significant flexibility in

selecting the device operating speed. A block diagram

of the PLL is shown in Figure 9-2.

The output of the primary oscillator or FRC, denoted as

FIN, is divided down by a prescale factor (N1) of 2, 3, ...

or 33 before being provided to the PLL’s Voltage

Controlled Oscillator (VCO). The input to the VCO must

be selected in the range of 0.8 MHz to 8 MHz. The

prescale factor, N1, is selected using the

PLLPRE<4:0> bits (CLKDIV<4:0>).

The PLL Feedback Divisor, selected using the

PLLDIV<8:0> bits (PLLFBD<8:0>), provides a factor M,

by which the input to the VCO is multiplied. This factor

must be selected such that the resulting VCO output

frequency is in the range of 100 MHz to 200 MHz.

The VCO output is further divided by a postscale factor

N2. This factor is selected using the PLLPOST<1:0>

bits (CLKDIV<7:6>). N2 can be either 2, 4 or 8, and

must be selected such that the PLL output frequency

(FOSC) is in the range of 12.5 MHz to 80 MHz, which

generates device operating speeds of 6.25-40 MIPS.

For a primary oscillator or FRC oscillator, output FIN,

the PLL output FOSC is given by:

EQUATION 9-2: FOSC CALCULATION

For example, suppose a 10 MHz crystal is being used

with the selected oscillator mode of XT with PLL.

• If PLLPRE<4:0> = 0, then N1 = 2. This yields a

VCO input of 10/2 = 5 MHz, which is within the

acceptable range of 0.8 MHz - 8 MHz.

• If PLLDIV<8:0> = 0x1E, then

M = 32. This yields a VCO output of 5 x 32 =

160 MHz, which is within the 100 MHz - 200 MHz

ranged needed.

• If PLLPOST<1:0> = 0, then N2 = 2. This provides

a Fosc of 160/2 = 80 MHz. The resultant device

operating speed is 80/2 = 40 MIPS.

EQUATION 9-3: XT WITH PLL MODE

EXAMPLE

FIGURE 9-2: dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/

X04 PLL BLOCK DIAGRAM

FOSC FIN M

N1N2•

---------------------

⎝⎠

⎛⎞

•=

FCY FOSC

------------- 1

---10000000 32•

22•

------------------------------------

⎝⎠

⎛⎞

40MIPS===

0.8-8.0 MHz

(1)

100-200 MHz

(1)

Divide by

2, 4, 8

Divide by

2-513

Divide by

2-33

Source (Crystal, External Clock PLLPRE XVCO

PLLDIV

PLLPOST

or Internal RC)

12.5-80 MHz

(1)

FOSC

Note 1: This frequency range must be satisfied at all times.

FVCO

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 9-1: CONFIGURATION BIT VALUES FOR CLOCK SELECTION

9.2 Oscillator Resources

Many useful resources related to Oscillator Configura-

tion are provided on the main product page of the

Microchip web site for the devices listed in this data

sheet. This product page, which can be accessed using

this link, contains the latest updates and additional

information.

9.2.1 KEY RESOURCES

•Section 39. “Oscillator (Part III)” (DS70216)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Oscillator Mode Oscillator Source POSCMD<1:0> FNOSC<2:0> See

Note

Fast RC Oscillator with Divide-by-N

(FRCDIVN)

Internal xx 111 1, 2

Fast RC Oscillator with Divide-by-16

(FRCDIV16)

Internal xx 110 1

Low-Power RC Oscillator (LPRC) Internal xx 101 1

Secondary (Timer1) Oscillator (SOSC) Secondary xx 100 1

Primary Oscillator (HS) with PLL

(HSPLL)

Primary 10 011 —

Primary Oscillator (XT) with PLL

(XTPLL)

Primary 01 011 —

Primary Oscillator (EC) with PLL

(ECPLL)

Primary 00 011 1

Primary Oscillator (HS) Primary 10 010 —

Primary Oscillator (XT) Primary 01 010 —

Primary Oscillator (EC) Primary 00 010 1

Fast RC Oscillator with PLL (FRCPLL) Internal xx 001 1

Fast RC Oscillator (FRC) Internal xx 000 1

Note 1: OSC2 pin function is determined by the OSCIOFNC Configuration bit.

2: This is the default oscillator mode for an unprogrammed (erased) device.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

9.3 Oscillator Control Registers

U-0 R-0 R-0 R-0 U-0 R/W-y R/W-y R/W-y

— COSC<2:0> — NOSC<2:0>(2)

bit 15 bit 8

R/W-0 R/W-0 R-0 U-0 R/C-0 U-0 R/W-0 R/W-0

CLKLOCK IOLOCK LOCK —CF — LPOSCEN OSWEN

bit 7 bit 0

Legend: C = Clear only bit y = Value set from Configuration bits on POR

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 COSC<2:0>: Current Oscillator Selection bits (read-only)

111 = Fast RC (FRC) oscillator with Divide-by-n

110 = Fast RC (FRC) oscillator with Divide-by-16

101 = Low-Power RC (LPRC) oscillator

100 = Secondary Oscillator (SOSC)

011 = Primary oscillator (XT, HS, EC) with PLL

010 = Primary oscillator (XT, HS, EC)

001 = Fast RC (FRC) oscillator with divide-by-N and PLL (FRCDIVN + PLL)

000 = Fast RC (FRC) oscillator

bit 11 Unimplemented: Read as ‘0’

bit 10-8 NOSC<2:0>: New Oscillator Selection bits(2)

111 = Fast RC (FRC) oscillator with Divide-by-n

110 = Fast RC (FRC) oscillator with Divide-by-16

101 = Low-Power RC (LPRC) oscillator

100 = Secondary Oscillator (SOSC)

011 = Primary oscillator (XT, HS, EC) with PLL

010 = Primary oscillator (XT, HS, EC)

001 = Fast RC (FRC) oscillator with divide-by-N and PLL (FRCDIVN + PLL)

000 = Fast RC (FRC) oscillator

bit 7 CLKLOCK: Clock Lock Enable bit

If clock switching is enabled and FSCM is disabled, (FCKSM<1:0> (FOSC<7:6>) = 0b01)

1 = Clock switching is disabled, system clock source is locked

0 = Clock switching is enabled, system clock source can be modified by clock switching

bit 6 IOLOCK: Peripheral Pin Select Lock bit

1 = Peripherial pin select is locked, write to peripheral pin select registers not allowed

0 = Peripherial pin select is not locked, write to peripheral pin select registers allowed

bit 5 LOCK: PLL Lock Status bit (read-only)

1 = Indicates that PLL is in lock, or PLL start-up timer is satisfied

0 = Indicates that PLL is out of lock, start-up timer is in progress or PLL is disabled

bit 4 Unimplemented: Read as ‘0’

Note 1: Writes to this register require an unlock sequence. Refer to Section 39. “Oscillator (Part III)” (DS70216)

in the “dsPIC33F/PIC24H Family Reference Manual” (available from the Microchip web site) for details.

2: Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.

This applies to clock switches in either direction. In these instances, the application must switch to FRC

mode as a transition clock source between the two PLL modes.

3: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 3 CF: Clock Fail Detect bit (read/clear by application)

1 = FSCM has detected clock failure

0 = FSCM has not detected clock failure

bit 2 Unimplemented: Read as ‘0’

bit 1 LPOSCEN: Secondary (LP) Oscillator Enable bit

1 = Enable secondary oscillator

0 = Disable secondary oscillator

bit 0 OSWEN: Oscillator Switch Enable bit

1 = Request oscillator switch to selection specified by NOSC<2:0> bits

0 = Oscillator switch is complete

Note 1: Writes to this register require an unlock sequence. Refer to Section 39. “Oscillator (Part III)” (DS70216)

in the “dsPIC33F/PIC24H Family Reference Manual” (available from the Microchip web site) for details.

2: Direct clock switches between any primary oscillator mode with PLL and FRCPLL mode are not permitted.

This applies to clock switches in either direction. In these instances, the application must switch to FRC

mode as a transition clock source between the two PLL modes.

3: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0

ROI DOZE<2:0> DOZEN(1) FRCDIV<2:0>

bit 15 bit 8

R/W-0 R/W-1 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PLLPOST<1:0> — PLLPRE<4:0>

bit 7 bit 0

Legend: y = Value set from Configuration bits on POR

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ROI: Recover on Interrupt bit

1 = Interrupts clear the DOZEN bit and the processor clock/peripheral clock ratio is set to 1:1

0 = Interrupts have no effect on the DOZEN bit

bit 14-12 DOZE<2:0>: Processor Clock Reduction Select bits

111 = FCY/128

110 = FCY/64

101 = FCY/32

100 = FCY/16

011 = FCY/8 (default)

010 = FCY/4

001 = FCY/2

000 = FCY/1

bit 11 DOZEN: DOZE Mode Enable bit(1)

1 = DOZE<2:0> field specifies the ratio between the peripheral clocks and the processor clocks

0 = Processor clock/peripheral clock ratio forced to 1:1

bit 10-8 FRCDIV<2:0>: Internal Fast RC Oscillator Postscaler bits

111 = FRC divide by 256

110 = FRC divide by 64

101 = FRC divide by 32

100 = FRC divide by 16

011 = FRC divide by 8

010 = FRC divide by 4

001 = FRC divide by 2

000 = FRC divide by 1 (default)

bit 7-6 PLLPOST<1:0>: PLL VCO Output Divider Select bits (also denoted as ‘N2’, PLL postscaler)

11 = Output/8

10 = Reserved

01 = Output/4 (default)

00 = Output/2

bit 5 Unimplemented: Read as ‘0’

bit 4-0 PLLPRE<4:0>: PLL Phase Detector Input Divider bits (also denoted as ‘N1’, PLL prescaler)

11111 = Input/33

•

00001 = Input/3

00000 = Input/2 (default)

Note 1: This bit is cleared when the ROI bit is set and an interrupt occurs.

2: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0(1)

— — — — — — —PLLDIV<8>

bit 15 bit 8

R/W-0 R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0

PLLDIV<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-9 Unimplemented: Read as ‘0’

bit 8-0 PLLDIV<8:0>: PLL Feedback Divisor bits (also denoted as ‘M’, PLL multiplier)

111111111 = 513

•

000110000 = 50 (default)

•

000000010 = 4

000000001 = 3

000000000 = 2

Note 1: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

—— TUN<5:0>(1)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-6 Unimplemented: Read as ‘0’

bit 5-0 TUN<5:0>: FRC Oscillator Tuning bits(1)

111111 = Center frequency -0.375% (7.345 MHz)

•

100001 = Center frequency -11.625% (6.52 MHz)

100000 = Center frequency -12% (6.49 MHz)

011111 = Center frequency +11.625% (8.23 MHz)

011110 = Center frequency +11.25% (8.20 MHz)

•

000001 = Center frequency +0.375% (7.40 MHz)

000000 = Center frequency (7.37 MHz nominal)

Note 1: OSCTUN functionality has been provided to help customers compensate for temperature effects on the

FRC frequency over a wide range of temperatures. The tuning step size is an approximation and is neither

characterized nor tested.

2: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

—— SELACLK AOSCMD<1:0> APSTSCLR<2:0>

bit 15 bit 8

R/W-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

ASRCSEL — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 SELACLK: Select Auxiliary Clock Source for Auxiliary Clock Divider

1 = Auxiliary Oscillators provides the source clock for Auxiliary Clock Divider

0 = PLL output (FOSC) provides the source clock for the Auxiliary Clock Divider

bit 12-11 AOSCMD<1:0>: Auxiliary Oscillator Mode

11 = EC External Clock Mode Select

10 = XT Oscillator Mode Select

01 = HS Oscillator Mode Select

00 = Auxiliary Oscillator Disabled (default)

bit 10-8 APSTSCLR<2:0>: Auxiliary Clock Output Divider

111 = Divided by 1

110 = Divided by 2

101 = Divided by 4

100 = Divided by 8

011 = Divided by 16

010 = Divided by 32

001 = Divided by 64

000 = Divided by 256 (default)

bit 7 ASRCSEL: Select Reference Clock Source for Auxiliary Clock

1 = Primary Oscillator is the Clock Source

0 = Auxiliary Oscillator is the Clock Source

bit 6-0 Unimplemented: Read as ‘0’

Note 1: This register is reset only on a Power-on Reset (POR).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

9.4 Clock Switching Operation

Applications are free to switch among any of the four

clock sources (Primary, LP, FRC and LPRC) under

software control at any time. To limit the possible side

effects of this flexibility, dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 devices have a safeguard lock built into the switch

process.

9.4.1 ENABLING CLOCK SWITCHING

To enable clock switching, the FCKSM1 Configuration

bit in the Configuration register must be programmed

to ‘0’. (Refer to Section 28.1 “Configuration Bits” for

further details.) If the FCKSM1 Configuration bit is

unprogrammed (‘1’), the clock switching function and

Fail-Safe Clock Monitor function are disabled. This is

the default setting.

The NOSC control bits (OSCCON<10:8>) do not

control the clock selection when clock switching is

disabled. However, the COSC bits (OSCCON<14:12>)

reflect the clock source selected by the FNOSC

Configuration bits.

The OSWEN control bit (OSCCON<0>) has no effect

when clock switching is disabled. It is held at ‘0’ at all

times.

9.4.2 OSCILLATOR SWITCHING SEQUENCE

Performing a clock switch requires this basic

sequence:

1. If desired, read the COSC bits

(OSCCON<14:12>) to determine the current

oscillator source.

2. Perform the unlock sequence to allow a write to

the OSCCON register high byte.

3. Write the appropriate value to the NOSC control

bits (OSCCON<10:8>) for the new oscillator

source.

4. Perform the unlock sequence to allow a write to

the OSCCON register low byte.

5. Set the OSWEN bit (OSCCON<0>) to initiate the

oscillator switch.

Once the basic sequence is completed, the system

clock hardware responds automatically as follows:

1. The clock switching hardware compares the

COSC status bits with the new value of the

NOSC control bits. If they are the same, the

clock switch is a redundant operation. In this

case, the OSWEN bit is cleared automatically

and the clock switch is aborted.

2. If a valid clock switch has been initiated, the

LOCK (OSCCON<5>) and the CF

(OSCCON<3>) status bits are cleared.

3. The new oscillator is turned on by the hardware

if it is not currently running. If a crystal oscillator

must be turned on, the hardware waits until the

Oscillator Start-up Timer (OST) expires. If the

new source is using the PLL, the hardware waits

until a PLL lock is detected (LOCK = 1).

4. The hardware waits for 10 clock cycles from the

new clock source and then performs the clock

switch.

5. The hardware clears the OSWEN bit to indicate a

successful clock transition. In addition, the NOSC

bit values are transferred to the COSC status bits.

6. The old clock source is turned off at this time,

with the exception of LPRC (if WDT or FSCM

are enabled) or LP (if LPOSCEN remains set).

9.5 Fail-Safe Clock Monitor (FSCM)

The Fail-Safe Clock Monitor (FSCM) allows the device

to continue to operate even in the event of an oscillator

failure. The FSCM function is enabled by programming.

If the FSCM function is enabled, the LPRC internal

oscillator runs at all times (except during Sleep mode)

and is not subject to control by the Watchdog Timer.

In the event of an oscillator failure, the FSCM

generates a clock failure trap event and switches the

system clock over to the FRC oscillator. Then the

application program can either attempt to restart the

oscillator or execute a controlled shutdown. The trap

can be treated as a warm Reset by simply loading the

Reset address into the oscillator fail trap vector.

If the PLL multiplier is used to scale the system clock,

the internal FRC is also multiplied by the same factor

on clock failure. Essentially, the device switches to

FRC with PLL on a clock failure.

Note: Primary Oscillator mode has three different

submodes (XT, HS and EC), which are

determined by the POSCMD<1:0>

Configuration bits. While an application

can switch to and from Primary Oscillator

mode in software, it cannot switch among

the different primary submodes without

reprogramming the device.

Note 1: The processor continues to execute code

throughout the clock switching sequence.

Timing-sensitive code should not be

executed during this time.

2: Direct clock switches between any

primary oscillator mode with PLL and

FRCPLL mode are not permitted. This

applies to clock switches in either

direction. In these instances, the

application must switch to FRC mode as a

transition clock source between the two

PLL modes.

3: Refer to Section 39. “Oscillator

(Part III)” (DS70216) in the “dsPIC33F/

PIC24H Family Reference Manual” for

details.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

10.0 POWER-SAVING FEATURES

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices provide

the ability to manage power consumption by

selectively managing clocking to the CPU and the

peripherals. In general, a lower clock frequency and

a reduction in the number of circuits being clocked

constitutes lower consumed power.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices can

manage power consumption in four ways:

• Clock frequency

• Instruction-based Sleep and Idle modes

• Software-controlled Doze mode

• Selective peripheral control in software

Combinations of these methods can be used to

selectively tailor an application’s power consumption

while still maintaining critical application features, such

as timing-sensitive communications.

10.1 Clock Frequency and Clock

Switching

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices allow a

wide range of clock frequencies to be selected under

application control. If the system clock configuration is

not locked, users can choose low-power or

high-precision oscillators by simply changing the

NOSC bits (OSCCON<10:8>). The process of

changing a system clock during operation, as well as

limitations to the process, are discussed in detail in

Section 9.0 “Oscillator Configuration”.

10.2 Instruction-Based Power-Saving

Modes

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices have two

special power-saving modes that are entered through

the execution of a special PWRSAV instruction. Sleep

mode stops clock operation and halts all code

execution. Idle mode halts the CPU and code

execution, but allows peripheral modules to continue

operation. The assembler syntax of the PWRSAV

instruction is shown in Example 10-1.

Sleep and Idle modes can be exited as a result of an

enabled interrupt, WDT time-out or a device Reset. When

the device exits these modes, it is said to wake up.

10.2.1 SLEEP MODE

The following occur in Sleep mode:

• The system clock source is shut down. If an

on-chip oscillator is used, it is turned off.

• The device current consumption is reduced to a

minimum, provided that no I/O pin is sourcing

current.

• The Fail-Safe Clock Monitor does not operate,

since the system clock source is disabled.

• The LPRC clock continues to run in Sleep mode if

the WDT is enabled.

• The WDT, if enabled, is automatically cleared

prior to entering Sleep mode.

• Some device features or peripherals can continue

to operate. This includes items such as the input

change notification on the I/O ports, or peripherals

that use an external clock input.

• Any peripheral that requires the system clock

source for its operation is disabled.

The device wakes up from Sleep mode on any of the

these events:

• Any interrupt source that is individually enabled

• Any form of device Reset

• A WDT time-out

On wake-up from Sleep mode, the processor restarts

with the same clock source that was active when Sleep

mode was entered.

EXAMPLE 10-1: PWRSAV INSTRUCTION SYNTAX

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 9. Watchdog

Timer and Power-Saving Modes”

(DS70196) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: SLEEP_MODE and IDLE_MODE are

constants defined in the assembler

include file for the selected device.

PWRSAV #SLEEP_MODE ; Put the device into Sleep mode

PWRSAV #IDLE_MODE ; Put the device into Idle mode

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

10.2.2 IDLE MODE

The following occur in Idle mode:

• The CPU stops executing instructions.

• The WDT is automatically cleared.

• The system clock source remains active. By

default, all peripheral modules continue to operate

normally from the system clock source, but can

also be selectively disabled (see Section 10.4

“Peripheral Module Disable”).

• If the WDT or FSCM is enabled, the LPRC also

remains active.

The device wakes from Idle mode on any of these

events:

• Any interrupt that is individually enabled

• Any device Reset

• A WDT time-out

On wake-up from Idle mode, the clock is reapplied to

the CPU and instruction execution will begin (2 to 4

cycles later), starting with the instruction following the

PWRSAV instruction, or the first instruction in the ISR.

10.2.3 INTERRUPTS COINCIDENT WITH

POWER SAVE INSTRUCTIONS

Any interrupt that coincides with the execution of a

PWRSAV instruction is held off until entry into Sleep or

Idle mode has completed. The device then wakes up

from Sleep or Idle mode.

10.3 Doze Mode

The preferred strategies for reducing power

consumption are changing clock speed and invoking

one of the power-saving modes. In some

circumstances, this cannot be practical. For example, it

may be necessary for an application to maintain

uninterrupted synchronous communication, even while

it is doing nothing else. Reducing system clock speed

can introduce communication errors, while using a

power-saving mode can stop communications

completely.

Doze mode is a simple and effective alternative method

to reduce power consumption while the device is still

executing code. In this mode, the system clock

continues to operate from the same source and at the

same speed. Peripheral modules continue to be

clocked at the same speed, while the CPU clock speed

is reduced. Synchronization between the two clock

domains is maintained, allowing the peripherals to

access the SFRs while the CPU executes code at a

slower rate.

Doze mode is enabled by setting the DOZEN bit

(CLKDIV<11>). The ratio between peripheral and core

clock speed is determined by the DOZE<2:0> bits

(CLKDIV<14:12>). There are eight possible

configurations, from 1:1 to 1:128, with 1:1 being the

default setting.

Programs can use Doze mode to selectively reduce

power consumption in event-driven applications. This

allows clock-sensitive functions, such as synchronous

communications, to continue without interruption while

the CPU idles, waiting for something to invoke an

interrupt routine. An automatic return to full-speed CPU

operation on interrupts can be enabled by setting the

ROI bit (CLKDIV<15>). By default, interrupt events

have no effect on Doze mode operation.

For example, suppose the device is operating at

20 MIPS and the ECAN module has been configured

for 500 kbps based on this device operating speed. If

the device is placed in Doze mode with a clock

frequency ratio of 1:4, the ECAN module continues to

communicate at the required bit rate of 500 kbps, but

the CPU now starts executing instructions at a

frequency of 5 MIPS.

10.4 Peripheral Module Disable

The Peripheral Module Disable (PMD) registers

provide a method to disable a peripheral module by

stopping all clock sources supplied to that module.

When a peripheral is disabled using the appropriate

PMD control bit, the peripheral is in a minimum power

consumption state. The control and status registers

associated with the peripheral are also disabled, so

writes to those registers do not have effect and read

values are invalid.

A peripheral module is enabled only if both the

associated bit in the PMD register is cleared and the

peripheral is supported by the specific dsPIC® DSC

variant. If the peripheral is present in the device, it is

enabled in the PMD register by default.

Note: If a PMD bit is set, the corresponding

module is disabled after a delay of one

instruction cycle. Similarly, if a PMD bit is

cleared, the corresponding module is

enabled after a delay of one instruction

cycle (assuming the module control

registers are already configured to enable

module operation).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

10.5 Power-Saving Resources

Many useful resources related to power-saving modes

are provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

10.5.1 KEY RESOURCES

•Section 9. “Watchdog Timer and

Power-Saving Modes” (DS70196)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

10.6 Power-Saving Registers

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0

T5MD T4MD T3MD T2MD T1MD QEI1MD PWM1MD —

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0

I2C1MD U2MD U1MD SPI2MD SPI1MD —C1MDAD1MD

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 T5MD: Timer5 Module Disable bit

1 = Timer5 module is disabled

0 = Timer5 module is enabled

bit 14 T4MD: Timer4 Module Disable bit

1 = Timer4 module is disabled

0 = Timer4 module is enabled

bit 13 T3MD: Timer3 Module Disable bit

1 = Timer3 module is disabled

0 = Timer3 module is enabled

bit 12 T2MD: Timer2 Module Disable bit

1 = Timer2 module is disabled

0 = Timer2 module is enabled

bit 11 T1MD: Timer1 Module Disable bit

1 = Timer1 module is disabled

0 = Timer1 module is enabled

bit 10 QEI1MD: QEI1 Module Disable bit

1 = QEI1 module is disabled

0 = QEI1 module is enabled

bit 9 PWM1MD: PWM1 Module Disable bit

1 = PWM1 module is disabled

0 = PWM1 module is enabled

bit 8 Unimplemented: Read as ‘0’

bit 7 I2C1MD: I2C1 Module Disable bit

1 = I2C1 module is disabled

0 = I2C1 module is enabled

bit 6 U2MD: UART2 Module Disable bit

1 = UART2 module is disabled

0 = UART2 module is enabled

bit 5 U1MD: UART1 Module Disable bit

1 = UART1 module is disabled

0 = UART1 module is enabled

bit 4 SPI2MD: SPI2 Module Disable bit

1 = SPI2 module is disabled

0 = SPI2 module is enabled

bit 3 SPI1MD: SPI1 Module Disable bit

1 = SPI1 module is disabled

0 = SPI1 module is enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 Unimplemented: Read as ‘0’

bit 1 C1MD: ECAN1 Module Disable bit

1 = ECAN1 module is disabled

0 = ECAN1 module is enabled

bit 0 AD1MD: ADC1 Module Disable bit

1 = ADC1 module is disabled

0 = ADC1 module is enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

IC8MD IC7MD ————IC2MDIC1MD

bit 15 bit 8

U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0

———— OC4MD OC3MD OC2MD OC1MD

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 IC8MD: Input Capture 8 Module Disable bit

1 = Input Capture 8 module is disabled

0 = Input Capture 8 module is enabled

bit 14 IC7MD: Input Capture 7 Module Disable bit

1 = Input Capture 7 module is disabled

0 = Input Capture 7 module is enabled

bit 13-10 Unimplemented: Read as ‘0’

bit 9 IC2MD: Input Capture 2 Module Disable bit

1 = Input Capture 2 module is disabled

0 = Input Capture 2 module is enabled

bit 8 IC1MD: Input Capture 1 Module Disable bit

1 = Input Capture 1 module is disabled

0 = Input Capture 1 module is enabled

bit 7-4 Unimplemented: Read as ‘0’

bit 3 OC4MD: Output Compare 4 Module Disable bit

1 = Output Compare 4 module is disabled

0 = Output Compare 4 module is enabled

bit 2 OC3MD: Output Compare 3 Module Disable bit

1 = Output Compare 3 module is disabled

0 = Output Compare 3 module is enabled

bit 1 OC2MD: Output Compare 2 Module Disable bit

1 = Output Compare 2 module is disabled

0 = Output Compare 2 module is enabled

bit 0 OC1MD: Output Compare 1 Module Disable bit

1 = Output Compare 1 module is disabled

0 = Output Compare 1 module is enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

————— CMPMD RTCCMD PMPMD

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0

CRCMD DAC1MD QEI2MD PWM2MD ————

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10 CMPMD: Comparator Module Disable bit

1 = Comparator module is disabled

0 = Comparator module is enabled

bit 9 RTCCMD: RTCC Module Disable bit

1 = RTCC module is disabled

0 = RTCC module is enabled

bit 8 PMPMD: PMP Module Disable bit

1 = PMP module is disabled

0 = PMP module is enabled

bit 7 CRCMD: CRC Module Disable bit

1 = CRC module is disabled

0 = CRC module is enabled

bit 6 DAC1MD: DAC1 Module Disable bit

1 = DAC1 module is disabled

0 = DAC1 module is enabled

bit 5 QEI2MD: QEI2 Module Disable bit

1 = QEI2 module is disabled

0 = QEI2 module is enabled

bit 4 PWM2MD: PWM2 Module Disable bit

1 = PWM2 module is disabled

0 = PWM2 module is enabled

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.0 I/O PORTS

All of the device pins (except VDD, VSS, MCLR and

OSC1/CLKI) are shared among the peripherals and the

parallel I/O ports. All I/O input ports feature Schmitt

Trigger inputs for improved noise immunity.

11.1 Parallel I/O (PIO) Ports

Generally, a parallel I/O port that shares a pin with a

peripheral is subservient to the peripheral. The

peripheral’s output buffer data and control signals are

provided to a pair of multiplexers. The multiplexers

select whether the peripheral or the associated port

has ownership of the output data and control signals of

the I/O pin. The logic also prevents loop through, in

which a port’s digital output can drive the input of a

peripheral that shares the same pin. Figure 11-1 shows

how ports are shared with other peripherals and the

associated I/O pin to which they are connected.

When a peripheral is enabled and the peripheral is

actively driving an associated pin, the use of the pin as

a general purpose output pin is disabled. The I/O pin

can be read, but the output driver for the parallel port bit

is disabled. If a peripheral is enabled, but the peripheral

is not actively driving a pin, that pin can be driven by a

port.

All port pins have three registers directly associated

with their operation as digital I/O. The data direction

or an output. If the data direction bit is a ‘1’, then the pin

is an input. All port pins are defined as inputs after a

Reset. Reads from the latch (LATx) read the latch.

Writes to the latch write the latch. Reads from the port

(PORTx) read the port pins, while writes to the port pins

write the latch.

Any bit and its associated data and control registers

that are not valid for a particular device is disabled.

This means the corresponding LATx and TRISx

registers and the port pin are read as zeros.

When a pin is shared with another peripheral or

function that is defined as an input only, it is

nevertheless regarded as a dedicated port because

there is no other competing source of outputs.

FIGURE 11-1: BLOCK DIAGRAM OF A TYPICAL SHARED PORT STRUCTURE

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 10. “I/O Ports”

(DS70193) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

WR LAT +

TRIS Latch

I/O Pin

WR Port

Data Bus

Data Latch

Read Port

Read TRIS

WR TRIS

Peripheral Output Data

Output Enable

Peripheral Input Data

I/O

Peripheral Module

Peripheral Output Enable

PIO Module

Output Multiplexers

Output Data

Input Data

Peripheral Module Enable

Read LAT

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.2 Open-Drain Configuration

In addition to the PORT, LAT and TRIS registers for

data control, some port pins can also be individually

configured for either digital or open-drain output. This

is controlled by the Open-Drain Control register,

ODCx, associated with each port. Setting any of the

bits configures the corresponding pin to act as an

open-drain output.

The open-drain feature allows the generation of

outputs higher than VDD (e.g., 5V) on any desired 5V

tolerant pins by using external pull-up resistors. The

maximum open-drain voltage allowed is the same as

the maximum VIH specification.

See “Pin Diagrams” for the available pins and their

functionality.

11.3 Configuring Analog Port Pins

The AD1PCFGL and TRIS registers control the

operation of the analog-to-digital port pins. The port

pins that are to function as analog inputs must have

their corresponding TRIS bit set (input). If the TRIS bit

is cleared (output), the digital output level (VOH or VOL)

is converted.

The AD1PCFGL register has a default value of 0x0000;

therefore, all pins that share ANx functions are analog

(not digital) by default.

When the PORT register is read, all pins configured as

analog input channels are read as cleared (a low level).

Pins configured as digital inputs do not convert an

analog input. Analog levels on any pin defined as a

digital input (including the ANx pins) can cause the

input buffer to consume current that exceeds the

device specifications.

11.4 I/O Port Write/Read Timing

One instruction cycle is required between a port

direction change or port write operation and a read

operation of the same port. Typically, this instruction

would be an NOP, as shown in Example 11-1.

11.5 Input Change Notification

The input change notification function of the I/O ports

allows the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 devices to generate interrupt requests to the

processor in response to a change-of-state on selected

input pins. This feature can detect input

change-of-states even in Sleep mode, when the clocks

are disabled. Depending on the device pin count, up to

21 external signals (CNx pin) can be selected (enabled)

for generating an interrupt request on a change-of-

state.

Four control registers are associated with the CN

module. The CNEN1 and CNEN2 registers contain the

interrupt enable control bits for each of the CN input

pins. Setting any of these bits enables a CN interrupt

for the corresponding pins.

Each CN pin also has a weak pull-up connected to it.

The pull-ups act as a current source connected to the

pin, and eliminate the need for external resistors when

push-button or keypad devices are connected. The

pull-ups are enabled separately using the CNPU1 and

CNPU2 registers, which contain the control bits for

each of the CN pins. Setting any of the control bits

enables the weak pull-ups for the corresponding pins.

EXAMPLE 11-1: PORT WRITE/READ EXAMPLE

Note: Pull-ups on change notification pins

should always be disabled when the port

pin is configured as a digital output.

MOV 0xFF00, W0 ; Configure PORTB<15:8> as inputs

MOV W0, TRISBB ; and PORTB<7:0> as outputs

NOP ; Delay 1 cycle

btss PORTB, #13 ; Next Instruction

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.6 Peripheral Pin Select

Peripheral pin select configuration enables peripheral

set selection and placement on a wide range of I/O

pins. By increasing the pinout options available on a

particular device, programmers can better tailor the

microcontroller to their entire application, rather than

trimming the application to fit the device.

The peripheral pin select configuration feature

operates over a fixed subset of digital I/O pins.

Programmers can independently map the input and/or

output of most digital peripherals to any one of these

I/O pins. Peripheral pin select is performed in

software, and generally does not require the device to

be reprogrammed. Hardware safeguards are included

that prevent accidental or spurious changes to the

peripheral mapping, once it has been established.

11.6.1 AVAILABLE PINS

The peripheral pin select feature is used with a range

of up to 26 pins. The number of available pins depends

on the particular device and its pin count. Pins that

support the peripheral pin select feature include the

designation RPn in their full pin designation, where RP

designates a remappable peripheral and n is the

remappable pin number.

11.6.2 CONTROLLING PERIPHERAL PIN

SELECT

Peripheral pin select features are controlled through

two sets of special function registers: one to map

peripheral inputs, and one to map outputs. Because

they are separately controlled, a particular peripheral’s

input and output (if the peripheral has both) can be

placed on any selectable function pin without

constraint.

The association of a peripheral to a peripheral

selectable pin is handled in two different ways,

depending on whether an input or output is being

mapped.

11.6.2.1 Input Mapping

The inputs of the peripheral pin select options are

mapped on the basis of the peripheral. A control

is mapped to. The RPINRx registers are used to

configure peripheral input mapping (see Register 11-1

through Register 11-20). Each register contains sets of

5-bit fields, with each set associated with one of the

remappable peripherals. Programming a given

peripheral’s bit field with an appropriate 5-bit value

maps the RPn pin with that value to that peripheral.

For any given device, the valid range of values for any

bit field corresponds to the maximum number of

peripheral pin selections supported by the device.

Figure 11-2 Illustrates remappable pin selection for

U1RX input.

FIGURE 11-2: REMAPPABLE MUX

INPUT FOR U1RX

Note: For input mapping only, the Peripheral Pin

Select (PPS) functionality does not have

priority over the TRISx settings.

Therefore, when configuring the RPx pin

for input, the corresponding bit in the

TRISx register must also be configured for

input (i.e., set to ‘1’).

RP0

RP1

RP2

RP 25

U1RX input

U1RXR<4:0>

to peripheral

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 11-1: SELECTABLE INPUT SOURCES (MAPS INPUT TO FUNCTION)(1)

Input Name Function Name Register Configuration

Bits

External Interrupt 1 INT1 RPINR0 INT1R<4:0>

External Interrupt 2 INT2 RPINR1 INT2R<4:0>

Timer2 External Clock T2CK RPINR3 T2CKR<4:0>

Timer3 External Clock T3CK RPINR3 T3CKR<4:0>

Timer4 External Clock T4CK RPINR4 T4CKR<4:0>

Timer5 External Clock T5CK RPINR4 T5CKR<4:0>

Input Capture 1 IC1 RPINR7 IC1R<4:0>

Input Capture 2 IC2 RPINR7 IC2R<4:0>

Input Capture 7 IC7 RPINR10 IC7R<4:0>

Input Capture 8 IC8 RPINR10 IC8R<4:0>

Output Compare Fault A OCFA RPINR11 OCFAR<4:0>

PWM1 Fault FLTA1 RPINR12 FLTA1R<4:0>

PWM2 Fault FLTA2 RPINR13 FLTA2R<4:0>

QEI1 Phase A QEA1 RPINR14 QEA1R<4:0>

QEI1 Phase B QEB1 RPINR14 QEB1R<4:0>

QEI1 Index INDX1 RPINR15 INDX1R<4:0>

QEI2 Phase A QEA2 RPINR16 QEA2R<4:0>

QEI2Phase B QEB2 RPINR16 QEB2R<4:0>

QEI2 Index INDX2 RPINR17 INDX2R<4:0>

UART1 Receive U1RX RPINR18 U1RXR<4:0>

UART1 Clear To Send U1CTS RPINR18 U1CTSR<4:0>

UART2 Receive U2RX RPINR19 U2RXR<4:0>

UART2 Clear To Send U2CTS RPINR19 U2CTSR<4:0>

SPI1 Data Input SDI1 RPINR20 SDI1R<4:0>

SPI1 Clock Input SCK1 RPINR20 SCK1R<4:0>

SPI1 Slave Select Input SS1 RPINR21 SS1R<4:0>

SPI2 Data Input SDI2 RPINR22 SDI2R<4:0>

SPI2 Clock Input SCK2 RPINR22 SCK2R<4:0>

SPI2 Slave Select Input SS2 RPINR23 SS2R<4:0>

ECAN1 Receive CIRX RPINR26 CIRXR<4:0>

Note 1: Unless otherwise noted, all inputs use Schmitt input buffers.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.6.2.2 Output Mapping

In contrast to inputs, the outputs of the peripheral pin

select options are mapped on the basis of the pin. In

this case, a control register associated with a particular

pin dictates the peripheral output to be mapped. The

RPORx registers are used to control output mapping.

Like the RPINRx registers, each register contains sets

of 5-bit fields, with each set associated with one RPn

pin (see Register 11-21 through Register 11-33). The

value of the bit field corresponds to one of the

peripherals, and that peripheral’s output is mapped to

the pin (see Ta b le 11 - 2 and Figure 11-3).

The list of peripherals for output mapping also includes

a null value of ‘00000’ because of the mapping

technique. This permits any given pin to remain

unconnected from the output of any of the pin

selectable peripherals.

FIGURE 11-3: MULTIPLEXING OF

REMAPPABLE OUTPUT

FOR RPn

TABLE 11-2: OUTPUT SELECTION FOR REMAPPABLE PIN (RPn)

RPnR<4:0>

default

U1TX Output enable

U1RTS Output enable 4

UPDN2 Output enable

default

U1TX Output

U1RTS Output 4

UPDN2 Output

Output Enable

Output Data

RPn

Function RPnR<4:0> Output Name

NULL 00000 RPn tied to default port pin

C1OUT 00001 RPn tied to Comparator1 Output

C2OUT 00010 RPn tied to Comparator2 Output

U1TX 00011 RPn tied to UART1 Transmit

U1RTS 00100 RPn tied to UART1 Ready To Send

U2TX 00101 RPn tied to UART2 Transmit

U2RTS 00110 RPn tied to UART2 Ready To Send

SDO1 00111 RPn tied to SPI1 Data Output

SCK1 01000 RPn tied to SPI1 Clock Output

SS1 01001 RPn tied to SPI1 Slave Select Output

SDO2 01010 RPn tied to SPI2 Data Output

SCK2 01011 RPn tied to SPI2 Clock Output

SS2 01100 RPn tied to SPI2 Slave Select Output

C1TX 10000 RPn tied to ECAN1 Transmit

OC1 10010 RPn tied to Output Compare 1

OC2 10011 RPn tied to Output Compare 2

OC3 10100 RPn tied to Output Compare 3

OC4 10101 RPn tied to Output Compare 4

UPDN1 11010 RPn tied to QEI1 direction (UPDN) status

UPDN2 11011 RPn tied to QEI2 direction (UPDN) status

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.6.3 CONTROLLING CONFIGURATION

CHANGES

Because peripheral remapping can be changed during

run time, some restrictions on peripheral remapping

are needed to prevent accidental configuration

changes. The dsPIC33F devices include three features

to prevent alterations to the peripheral map:

• Control register lock sequence

• Continuous state monitoring

• Configuration bit pin select lock

11.6.3.1 Control Register Lock

Under normal operation, writes to the RPINRx and

RPORx registers are not allowed. Attempted writes

appear to execute normally, but the contents of the

registers remain unchanged. To change these

registers, they must be unlocked in hardware. The

(OSCCON<6>). Setting IOLOCK prevents writes to the

control registers;

clearing IOLOCK allows writes.

To set or clear the IOLOCK bit, a specific command

sequence must be executed:

1. Write 0x46 to OSCCON<7:0>.

2. Write 0x57 to OSCCON<7:0>.

3. Clear (or set) the IOLOCK bit as a single

operation.

Unlike the similar sequence with the oscillator’s LOCK

bit, IOLOCK remains in one state until changed. This

allows all of the peripheral pin selects to be configured

with a single unlock sequence followed by an update to

all control registers, then locked with a second lock

sequence.

11.6.3.2 Continuous State Monitoring

In addition to being protected from direct writes, the

contents of the RPINRx and RPORx registers are

constantly monitored in hardware by shadow registers.

If an unexpected change in any of the registers occurs

(such as cell disturbances caused by ESD or other

external events), a configuration mismatch Reset is

triggered.

11.6.3.3 Configuration Bit Pin Select Lock

As an additional level of safety, the device can be

configured to prevent more than one write session to

the RPINRx and RPORx registers. The IOL1WAY

Configuration bit (FOSC<5>) blocks the IOLOCK bit

from being cleared after it has been set once. If

IOLOCK remains set, the register unlock procedure

does not execute, and the peripheral pin select control

registers cannot be written to. The only way to clear the

bit and re-enable peripheral remapping is to perform a

device Reset.

In the default (unprogrammed) state, IOL1WAY is set,

restricting users to one write session. Programming

IOL1WAY allows user applications unlimited access

(with the proper use of the unlock sequence) to the

peripheral pin select registers.

Note: MPLAB® C30 provides built-in C

language functions for unlocking the

OSCCON register:

__builtin_write_OSCCONL(value)

__builtin_write_OSCCONH(value)

See MPLAB IDE Help for more

information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.7 I/O Helpful Tips

1. In some cases, certain pins as defined in TABLE

31-9: “DC Characteristics: I/O Pin Input Speci-

fications” under “Injection Current”, have internal

protection diodes to VDD and VSS. The term

“Injection Current” is also referred to as “Clamp

Current”. On designated pins, with sufficient exter-

nal current limiting precautions by the user, I/O pin

input voltages are allowed to be greater or less

than the data sheet absolute maximum ratings

with nominal VDD with respect to the VSS and VDD

supplies. Note that when the user application for-

ward biases either of the high or low side internal

input clamp diodes, that the resulting current being

injected into the device that is clamped internally

by the VDD and VSS power rails, may affect the

ADC accuracy by four to six counts.

2. I/O pins that are shared with any analog input pin,

(i.e., ANx), are always analog pins by default after

any reset. Consequently, any pin(s) configured as

an analog input pin, automatically disables the dig-

ital input pin buffer. As such, any attempt to read a

digital input pin will always return a ‘0’ regardless

of the digital logic level on the pin if the analog pin

is configured. To use a pin as a digital I/O pin on a

shared ANx pin, the user application needs to con-

figure the analog pin configuration registers in the

ADC module, (i.e., ADxPCFGL, AD1PCFGH), by

setting the appropriate bit that corresponds to that

I/O port pin to a ‘1’. On devices with more than one

ADC, both analog pin configurations for both ADC

modules must be configured as a digital I/O pin for

that pin to function as a digital I/O pin.

3. Most I/O pins have multiple functions. Referring to

the device pin diagrams in the data sheet, the pri-

orities of the functions allocated to any pins are

indicated by reading the pin name from left-to-

right. The left most function name takes prece-

dence over any function to its right in the naming

convention. For example: AN16/T2CK/T7CK/RC1.

This indicates that AN16 is the highest priority in

this example and will supersede all other functions

to its right in the list. Those other functions to its

right, even if enabled, would not work as long as

any other function to its left was enabled. This rule

applies to all of the functions listed for a given pin.

4. Each CN pin has a configurable internal weak

pull-up resistor. The pull-ups act as a current

source connected to the pin, and eliminates the

need for external resistors in certain applica-

tions. The internal pull-up is to ~(VDD-0.8) not

VDD. This is still above the minimum VIH of

CMOS and TTL devices.

5. When driving LEDs directly, the I/O pin can source

or sink more current than what is specified in the

VOH/IOH and VOL/IOL DC characteristic specifica-

tion. The respective IOH and IOL current rating only

applies to maintaining the corresponding output at

or above the VOH and at or below the VOL levels.

However, for LEDs unlike digital inputs of an exter-

nally connected device, they are not governed by

the same minimum VIH/VIL levels. An I/O pin out-

put can safely sink or source any current less than

that listed in the absolute maximum rating section

of the data sheet. For example:

VOH = 2.4v @ IOH = -8 mA and VDD = 3.3V

The maximum output current sourced by any 8 mA

I/O pin = 12 mA.

LED source current < 12 mA is technically permitted.

Refer to the VOH/IOH graphs in Section 31.0

“Electrical Characteristics” for additional

information.

11.8 I/O Resources

Many useful resources related to Resets are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

11.8.1 KEY RESOURCES

•Section 10. “I/O Ports” (DS70193)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: Although it is not possible to use a digital

input pin when its analog function is

enabled, it is possible to use the digital I/O

output function, TRISx = 0x0, while the

analog function is also enabled. However,

this is not recommended, particularly if the

analog input is connected to an external

analog voltage source, which would cre-

ate signal contention between the analog

signal and the output pin driver.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

11.9 Peripheral Pin Select Registers

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 family of devices

implement 33 registers for remappable peripheral

configuration:

• 20 Input Remappable Peripheral Registers:

- RPINR0-RPINR1, RPINR3-RPINR4,

RPINR7, RPINR10-RPINR21, PRINR23, and

PRINR26

• 13 Output Remappable Peripheral Registers:

- RPOR0-RPOR12

Note: Input and output register values can only

be changed if the IOLOCK bit

(OSCCON<6>) is set to ‘0’. See

Section 11.6.3.1 “Control Register

Lock” for a specific command sequence.

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —INT1R<4:0>

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 INT1R<4:0>: Assign External Interrupt 1 (INTR1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — INTR2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 INTR2R<4:0>: Assign External Interrupt 2 (INTR2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —T3CKR<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —T2CKR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 T3CKR<4:0>: Assign Timer3 External Clock (T3CK) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 T2CKR<4:0>: Assign Timer2 External Clock (T2CK) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —T5CKR<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —T4CKR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 T5CKR<4:0>: Assign Timer5 External Clock (T5CK) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 T4CKR<4:0>: Assign Timer4 External Clock (T4CK) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — IC2R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — IC1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 IC2R<4:0>: Assign Input Capture 2 (IC2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 IC1R<4:0>: Assign Input Capture 1 (IC1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — IC8R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — IC7R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 IC8R<4:0>: Assign Input Capture 8 (IC8) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 IC7R<4:0>: Assign Input Capture 7 (IC7) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —OCFAR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 OCFAR<4:0>: Assign Output Compare A (OCFA) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —FLTA1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 FLTA1R<4:0>: Assign PWM1 Fault (FLTA1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —FLTA2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 FLTA2R<4:0>: Assign PWM2 Fault (FLTA2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —QEB1R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —QEA1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 QEB1R<4:0>: Assign B (QEB1) to the corresponding pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 QEA1R<4:0>: Assign A (QEA1) to the corresponding pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — INDX1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 INDX1R<4:0>: Assign QEI1 INDEX (INDX1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —QEB2R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —QEA2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 QEB2R<4:0>: Assign B (QEB2) to the corresponding pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 QEA2R<4:0>: Assign A (QEA2) to the corresponding pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — INDX2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 INDX2R<4:0>: Assign QEI2 INDEX (INDX2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — U1CTSR<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —U1RXR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 U1CTSR<4:0>: Assign UART1 Clear to Send (U1CTS) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 U1RXR<4:0>: Assign UART1 Receive (U1RX) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — U2CTSR<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —U2RXR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 U2CTSR<4:0>: Assign UART2 Clear to Send (U2CTS) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 U2RXR<4:0>: Assign UART2 Receive (U2RX) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —SCK1R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —SDI1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 SCK1R<4:0>: Assign SPI1 Clock Input (SCK1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 SDI1R<4:0>: Assign SPI1 Data Input (SDI1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — SS1R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 SS1R<4:0>: Assign SPI1 Slave Select Input (SS1) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —SCK2R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —SDI2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 SCK2R<4:0>: Assign SPI2 Clock Input (SCK2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 SDI2R<4:0>: Assign SPI2 Data Input (SDI2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — — SS2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 SS2R<4:0>: Assign SPI2 Slave Select Input (SS2) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

— — —C1RXR<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 C1RXR<4:0>: Assign ECAN1 Receive (C1RX) to the corresponding RPn pin

11111 = Input tied to VSS

11001 = Input tied to RP25

•

00001 = Input tied to RP1

00000 = Input tied to RP0

Note 1: This register is disabled on devices without an ECAN™ module.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP1R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP0R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP1R<4:0>: Peripheral Output Function is Assigned to RP1 Output Pin bits (see Ta bl e 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP0R<4:0>: Peripheral Output Function is Assigned to RP0 Output Pin bits (see Ta bl e 11 -2 for

peripheral function numbers)

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP3R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP2R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP3R<4:0>: Peripheral Output Function is Assigned to RP3 Output Pin bits (see Ta bl e 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP2R<4:0>: Peripheral Output Function is Assigned to RP2 Output Pin bits (see Ta bl e 11 -2 for

peripheral function numbers)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —RP5R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —RP4R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP5R<4:0>: Peripheral Output Function is Assigned to RP5 Output Pin bits (see Ta bl e 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP4R<4:0>: Peripheral Output Function is Assigned to RP4 Output Pin bits (see Ta bl e 11 -2 for

peripheral function numbers)

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —RP7R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —RP6R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP7R<4:0>: Peripheral Output Function is Assigned to RP7 Output Pin bits (see Ta bl e 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP6R<4:0>: Peripheral Output Function is Assigned to RP6 Output Pin bits (see Ta bl e 11 -2 for

peripheral function numbers)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP9R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP8R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP9R<4:0>: Peripheral Output Function is Assigned to RP9 Output Pin bits (see Ta bl e 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP8R<4:0>: Peripheral Output Function is Assigned to RP8 Output Pin bits (see Ta bl e 11 -2 for

peripheral function numbers)

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — —RP11R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP10R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP11R<4:0>: Peripheral Output Function is Assigned to RP11 Output Pin bits (see Table 11-2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP10R<4:0>: Peripheral Output Function is Assigned to RP10 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP13R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP12R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP13R<4:0>: Peripheral Output Function is Assigned to RP13 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP12R<4:0>: Peripheral Output Function is Assigned to RP12 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP15R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP14R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP15R<4:0>: Peripheral Output Function is Assigned to RP15 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP14R<4:0>: Peripheral Output Function is Assigned to RP14 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP17R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP16R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP17R<4:0>: Peripheral Output Function is Assigned to RP17 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP16R<4:0>: Peripheral Output Function is Assigned to RP16 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

Note 1: This register is implemented in 44-pin devices only.

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP19R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP18R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP19R<4:0>: Peripheral Output Function is Assigned to RP19 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP18R<4:0>: Peripheral Output Function is Assigned to RP18 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

Note 1: This register is implemented in 44-pin devices only.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP21R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP20R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP21R<4:0>: Peripheral Output Function is Assigned to RP21 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP20R<4:0>: Peripheral Output Function is Assigned to RP20 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

Note 1: This register is implemented in 44-pin devices only.

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP23R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP22R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP23R<4:0>: Peripheral Output Function is Assigned to RP23 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP22R<4:0>: Peripheral Output Function is Assigned to RP22 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

Note 1: This register is implemented in 44-pin devices only.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP25R<4:0>

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — RP24R<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 RP25R<4:0>: Peripheral Output Function is Assigned to RP25 Output Pin bits (see Tab le 11 - 2 for

peripheral function numbers)

bit 7-5 Unimplemented: Read as ‘0’

bit 4-0 RP24R<4:0>: Peripheral Output Function is Assigned to RP24 Output Pin bits (see Ta ble 11 -2 for

peripheral function numbers)

Note 1: This register is implemented in 44-pin devices only.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

12.0 TIMER1

The Timer1 module is a 16-bit timer, which can serve

as the time counter for the real-time clock, or operate

as a free-running interval timer/counter.

The Timer1 module has the following unique features

over other timers:

• Can be operated from the low power 32 kHz

crystal oscillator available on the device.

• Can be operated in Asynchronous Counter mode

from an external clock source.

• The external clock input (T1CK) can optionally be

synchronized to the internal device clock and the

clock synchronization is performed after the

prescaler.

The unique features of Timer1 allow it to be used for

Real-Time Clock (RTC) applications. A block diagram

of Timer1 is shown in Figure 12-1.

The Timer1 module can operate in one of the following

modes:

• Timer mode

• Gated Timer mode

• Synchronous Counter mode

• Asynchronous Counter mode

In Timer and Gated Timer modes, the input clock is

derived from the internal instruction cycle clock (FCY).

In Synchronous and Asynchronous Counter modes,

the input clock is derived from the external clock input

at the T1CK pin.

The Timer modes are determined by the following bits:

• Timer Clock Source Control bit (TCS): T1CON<1>

• Timer Synchronization Control bit (TSYNC):

T1CON<2>

• Timer Gate Control bit (TGATE): T1CON<6>

Timer control bit setting for different operating modes

are given in the Table 12-1.

TABLE 12-1: TIMER MODE SETTINGS

FIGURE 12-1: 16-BIT TIMER1 MODULE BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 11. “Timers”

(DS70205) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Mode TCS TGATE TSYNC

Timer 00x

Gated timer 01x

Synchronous

Counter

1x1

Asynchronous

Counter

1x0

TGATE

TCS

TMR1

Comparator

PR1

TGATE

Set T1IF flag

TSYNC

Sync

Equal

Reset

SOSCI

SOSCO/

T1CK

Prescaler

(/n)

TCKPS<1:0>

Gate

Sync

FCY

Falling Edge

Detect

Prescaler

(/n)

TCKPS<1:0>

LPOSCEN(1)

Note 1: Refer to Section 9.0 “Oscillator Configuration” for information on enabling the secondary oscillator.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

12.1 Timer Resources

Many useful resources related to Timers are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

12.1.1 KEY RESOURCES

•Section 11. “Timers” (DS70205)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

12.2 Timer1 Control Register

R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

TON —TSIDL— — — — —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 U-0

— TGATE TCKPS<1:0> — TSYNC TCS —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 TON: Timer1 On bit

1 = Starts 16-bit Timer1

0 = Stops 16-bit Timer1

bit 14 Unimplemented: Read as ‘0’

bit 13 TSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12-7 Unimplemented: Read as ‘0’

bit 6 TGATE: Timer1 Gated Time Accumulation Enable bit

When TCS = 1:

This bit is ignored.

When TCS = 0:

1 = Gated time accumulation enabled

0 = Gated time accumulation disabled

bit 5-4 TCKPS<1:0> Timer1 Input Clock Prescale Select bits

11 = 1:256

10 = 1:64

01 = 1:8

00 = 1:1

bit 3 Unimplemented: Read as ‘0’

bit 2 TSYNC: Timer1 External Clock Input Synchronization Select bit

When TCS = 1:

1 = Synchronize external clock input

0 = Do not synchronize external clock input

When TCS = 0:

This bit is ignored.

bit 1 TCS: Timer1 Clock Source Select bit

1 = External clock from pin T1CK (on the rising edge)

0 = Internal clock (FCY)

bit 0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

13.0 TIMER2/3 AND TIMER4/5 Timer2 and Timer4 are Type B timers with the following

specific features:

• A Type B timer can be concatenated with a Type

C timer to form a 32-bit timer

• The external clock input (TxCK) is always

synchronized to the internal device clock and the

clock synchronization is performed after the

prescaler

A block diagram of the Type B timer is shown in

Figure 13-1.

Timer3 and Timer5 are Type C timers with the following

specific features:

• A Type C timer can be concatenated with a Type

B timer to form a 32-bit timer

• At least one Type C timer has the ability to trigger

an analog-to-digital conversion

• The external clock input (TxCK) is always

synchronized to the internal device clock and the

clock synchronization is performed before the

prescaler

A block diagram of the Type C timer is shown in

Figure 13-2.

FIGURE 13-1: TYPE B TIMER BLOCK DIAGRAM (x = 2 or 4)

FIGURE 13-2: TYPE C TIMER BLOCK DIAGRAM (x = 3 or 5)

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 11. “Timers”

(DS70205) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Prescaler

(/n)

TGATE

TCS

TMRx

Comparator

PRx

TGATE

Set TxIF flag

Sync

TCKPS<1:0>

Equal

Reset

TxCK

Gate

Sync

FCY

Falling Edge

Detect

Prescaler

(/n)

TCKPS<1:0>

Prescaler

(/n)

Gate

Sync

TGATE

TCS

TMRx

Comparator

PRx

FCY

TGATE

Falling Edge

Detect Set TxIF flag

Sync

TCKPS<1:0>

Equal

Reset

TxCK

ADC SOC Trigger

Prescaler

(/n)

TCKPS<1:0>

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

The Timer2/3 and Timer4/5 modules can operate in

one of the following modes:

• Timer mode

• Gated Timer mode

• Synchronous Counter mode

In Timer and Gated Timer modes, the input clock is

derived from the internal instruction cycle clock (FCY).

In Synchronous Counter mode, the input clock is

derived from the external clock input at TxCK pin.

The timer modes are determined by the following bits:

• TCS (TxCON<1>): Timer Clock Source Control bit

• TGATE (TxCON<6>): Timer Gate Control bit

Timer control bit settings for different operating modes

are given in the Table 13-1.

TABLE 13-1: TIMER MODE SETTINGS

13.1 16-bit Operation

To configure any of the timers for individual 16-bit

operation:

1. Clear the T32 bit corresponding to that timer.

2. Select the timer prescaler ratio using the

TCKPS<1:0> bits.

3. Set the Clock and Gating modes using the TCS

and TGATE bits.

4. Load the timer period value into the PRx

5. If interrupts are required, set the interrupt enable

bit, TxIE. Use the priority bits, TxIP<2:0>, to set

the interrupt priority.

6. Set the TON bit.

13.2 32-bit Operation

A 32-bit timer module can be formed by combining a

Type B and a Type C 16-bit timer module. For 32-bit

timer operation, the T32 control bit in the Type B Timer

Control register (TxCON<3>) must be set. The Type C

timer holds the most significant word (msw) and the

Type B timer holds the least significant word (lsw) for

32-bit operation.

When configured for 32-bit operation, only the Type B

Timer Control register (TxCON) bits are required for

setup and control. Type C timer control register bits are

ignored (except TSIDL bit).

For interrupt control, the combined 32-bit timer uses

the interrupt enable, interrupt flag and interrupt priority

control bits of the Type C timer. The interrupt control

and status bits for the Type B timer are ignored during

32-bit timer operation.

The Type B and Type C timers that can be combined to

form a 32-bit timer are listed in Table 13-2.

TABLE 13-2: 32-BIT TIMER

A block diagram representation of the 32-bit timer

module is shown in Figure 13-3. The 32-timer module

can operate in one of the following modes:

• Timer mode

• Gated Timer mode

• Synchronous Counter mode

To configure the features of Timer2/3 or Timer4/5 for

32-bit operation:

1. Set the T32 control bit.

2. Select the prescaler ratio for Timer2 or Timer4

using the TCKPS<1:0> bits.

3. Set the Clock and Gating modes using the

corresponding TCS and TGATE bits.

4. Load the timer period value. PR3 or PR5

contains the most significant word of the value,

while PR2 or PR4 contains the least significant

word.

5. If interrupts are required, set the interrupt enable

bits, T3IE or T5IE. Use the priority bits,

T3IP<2:0> or T5IP<2:0> to set the interrupt

priority. While Timer2 or Timer4 controls the

timer, the interrupt appears as a Timer3 or

Timer5 interrupt.

6. Set the corresponding TON bit.

The timer value at any point is stored in the register

pair, TMR3:TMR2 or TMR5:TMR4, which always

contains the most significant word of the count, while

TMR2 or TMR4 contains the least significant word.

Mode TCS TGATE

Timer 00

Gated timer 01

Synchronous counter 1x

Note: Only Timer2 and Timer3 can trigger a

DMA data transfer.

TYPE B Timer (lsw) TYPE C Timer (msw)

Timer2 Timer3

Timer4 Timer5

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 13-3: 32-BIT TIMER BLOCK DIAGRAM

13.3 Timer Resources

Many useful resources related to Timers are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

13.3.1 KEY RESOURCES

•Section 11. “Timers” (DS70205)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Prescaler

(/n)

TGATE

TCS

TMRx

PRx

TGATE

Set TyIF

Sync

TCKPS<1:0>

Equal

TxCK

Gate

Sync

FCY

Falling Edge

Detect

Prescaler

(/n)

TCKPS<1:0> TMRy

Comparator

PRy

Reset

msw

lsw

TMRyHLD

Data Bus <15:0>

Flag

ADC SOC Trigger

Note 1: ADC trigger is available only on TMR3:TMR2 and TMR5:TMR2 32-bit timers.

2: Timer x is a Type B Timer (x = 2 and 4).

3: Timer y is a Type C Timer (y = 3 and 5).

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

13.4 Timer Control Registers

R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

TON —TSIDL— — — — —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 U-0

— TGATE TCKPS<1:0> T32 —TCS—

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 TON: Timerx On bit

When T32 = 1 (in 32-bit Timer mode):

1 = Starts 32-bit TMRx:TMRy timer pair

0 = Stops 32-bit TMRx:TMRy timer pair

When T32 = 0 (in 16-bit Timer mode):

1 = Starts 16-bit timer

0 = Stops 16-bit timer

bit 14 Unimplemented: Read as ‘0’

bit 13 TSIDL: Stop in Idle Mode bit

1 = Discontinue timer operation when device enters Idle mode

0 = Continue timer operation in Idle mode

bit 12-7 Unimplemented: Read as ‘0’

bit 6 TGATE: Timerx Gated Time Accumulation Enable bit

When TCS = 1:

This bit is ignored.

When TCS = 0:

1 = Gated time accumulation enabled

0 = Gated time accumulation disabled

bit 5-4 TCKPS<1:0>: Timerx Input Clock Prescale Select bits

11 = 1:256 prescale value

10 = 1:64 prescale value

01 = 1:8 prescale value

00 = 1:1 prescale value

bit 3 T32: 32-bit Timerx Mode Select bit

1 = TMRx and TMRy form a 32-bit timer

0 = TMRx and TMRy form separate 16-bit timer

bit 2 Unimplemented: Read as ‘0’

bit 1 TCS: Timerx Clock Source Select bit

1 = External clock from TxCK pin

0 = Internal clock (FOSC/2)

bit 0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

TON(2) —TSIDL

(1) — — — — —

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 U-0

— TGATE

(2) TCKPS<1:0>(2) ——TCS

(2) —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 TON: Timery On bit(2)

1 = Starts 16-bit Timerx

0 = Stops 16-bit Timerx

bit 14 Unimplemented: Read as ‘0’

bit 13 TSIDL: Stop in Idle Mode bit(1)

1 = Discontinue timer operation when device enters Idle mode

0 = Continue timer operation in Idle mode

bit 12-7 Unimplemented: Read as ‘0’

bit 6 TGATE: Timerx Gated Time Accumulation Enable bit(2)

When TCS = 1:

This bit is ignored.

When TCS = 0:

1 = Gated time accumulation enabled

0 = Gated time accumulation disabled

bit 5-4 TCKPS<1:0>: Timerx Input Clock Prescale Select bits(2)

11 = 1:256 prescale value

10 = 1:64 prescale value

01 = 1:8 prescale value

00 = 1:1 prescale value

bit 3-2 Unimplemented: Read as ‘0’

bit 1 TCS: Timerx Clock Source Select bit(2)

1 = External clock from TxCK pin

0 = Internal clock (FOSC/2)

bit 0 Unimplemented: Read as ‘0’

Note 1: When 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), the TSIDL bit

must be cleared to operate the 32-bit timer in Idle mode.

2: When the 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), these bits

have no effect.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

14.0 INPUT CAPTURE

The Input Capture module is useful in applications that

requires frequency (period) and pulse measurement.

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices support

up to four input capture channels.

The input capture module captures the 16-bit value of

the selected Time Base register when an event occurs

at the ICx pin. The events that cause a capture event

are listed below in three categories:

• Simple Capture Event modes:

- Capture timer value on every falling edge of

input at ICx pin

- Capture timer value on every rising edge of

input at ICx pin

• Capture timer value on every edge (rising and

falling)

• Prescaler Capture Event modes:

- Capture timer value on every 4th rising

edge of input at ICx pin

- Capture timer value on every 16th rising

edge of input at ICx pin

Each input capture channel can select one of two 16-bit

timers (Timer2 or Timer3) for the time base. The

selected timer can use either an internal or external

clock.

Other operational features include:

• Device wake-up from capture pin during CPU

Sleep and Idle modes

• Interrupt on input capture event

• 4-word FIFO buffer for capture values

- Interrupt optionally generated after 1, 2, 3 or

4 buffer locations are filled

• Use of input capture to provide additional sources

of external interrupts

FIGURE 14-1: INPUT CAPTURE BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 12. “Input

Capture” (DS70198) of the “dsPIC33F/

PIC24H Family Reference Manual”,

which is available from the Microchip web

site (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: Only IC1 and IC2 can trigger a DMA data

transfer. If DMA data transfers are

required, the FIFO buffer size must be set

to ‘1’ (ICI<1:0> = 00)

Note: An ‘x’ in a signal, register or bit name denotes the number of the capture channel.

FIFO CONTROL

ICxBUF

TMR2 TMR3

CaptureEvent

FIFO

ICI<1:0>

ICM<2:0>

101

100

011

010

001

111

To CPU

Set Flag ICxIF

(In IFSx Register)

Rising Edge Mode

Prescaler Mode

(4th Rising Edge)

Falling Edge Mode

Edge Detection

Prescaler Mode

(16th Rising Edge)

Sleep/Idle

Wake-up Mode

ICTMR

ICx pin

Mode

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

14.1 Input Capture Resources

Many useful resources related to Input Capture are

provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

14.1.1 KEY RESOURCES

•Section 12. “Input Capture” (DS70198)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

14.2 Input Capture Registers

U-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

——ICSIDL— — — — —

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R-0, HC R-0, HC R/W-0 R/W-0 R/W-0

ICTMR ICI<1:0> ICOV ICBNE ICM<2:0>

bit 7 bit 0

Legend: HC = Cleared in Hardware

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 ICSIDL: Input Capture Module Stop in Idle Control bit

1 = Input capture module halts in CPU Idle mode

0 = Input capture module continues to operate in CPU Idle mode

bit 12-8 Unimplemented: Read as ‘0’

bit 7 ICTMR: Input Capture Timer Select bits

1 = TMR2 contents are captured on capture event

0 = TMR3 contents are captured on capture event

bit 6-5 ICI<1:0>: Select Number of Captures per Interrupt bits

11 = Interrupt on every fourth capture event

10 = Interrupt on every third capture event

01 = Interrupt on every second capture event

00 = Interrupt on every capture event

bit 4 ICOV: Input Capture Overflow Status Flag bit (read-only)

1 = Input capture overflow occurred

0 = No input capture overflow occurred

bit 3 ICBNE: Input Capture Buffer Empty Status bit (read-only)

1 = Input capture buffer is not empty, at least one more capture value can be read

0 = Input capture buffer is empty

bit 2-0 ICM<2:0>: Input Capture Mode Select bits

111 = Input capture functions as interrupt pin only when device is in Sleep or Idle mode

(Rising edge detect only, all other control bits are not applicable).

110 = Unused (module disabled)

101 = Capture mode, every 16th rising edge

100 = Capture mode, every 4th rising edge

011 = Capture mode, every rising edge

010 = Capture mode, every falling edge

001 = Capture mode, every edge (rising and falling)

(ICI<1:0> bits do not control interrupt generation for this mode).

000 = Input capture module turned off

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

15.0 OUTPUT COMPARE The Output Compare module can select either Timer2

or Timer3 for its time base. The module compares the

value of the timer with the value of one or two compare

registers depending on the operating mode selected.

The state of the output pin changes when the timer

value matches the compare register value. The Output

Compare module generates either a single output

pulse or a sequence of output pulses, by changing the

state of the output pin on the compare match events.

The Output Compare module can also generate

interrupts on compare match events.

The Output Compare module has multiple operating

modes:

• Active-Low One-Shot mode

• Active-High One-Shot mode

• Toggle mode

• Delayed One-Shot mode

• Continuous Pulse mode

• PWM mode without fault protection

• PWM mode with fault protection

FIGURE 15-1: OUTPUT COMPARE MODULE BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 13. “Output

Compare” (DS70209) of the “dsPIC33F/

PIC24H Family Reference Manual”,

which is available from the Microchip web

site (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

OCxR

Comparator

Output

Logic

OCM<2:0>

OCx

Set Flag bit

OCxIF

OCxRS

Mode Select

OCTSEL 01

OCFA

TMR2 TMR2

TMR3 TMR3

Rollover Rollover

Output

Logic

Output

Enable Enable

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

15.1 Output Compare Modes

Configure the Output Compare modes by setting the

appropriate Output Compare Mode bits (OCM<2:0>) in

the Output Compare Control register (OCxCON<2:0>).

Table 15-1 lists the different bit settings for the Output

Compare modes. Figure 15-2 illustrates the output

compare operation for various modes. The user

application must disable the associated timer when

writing to the output compare control registers to avoid

malfunctions.

TABLE 15-1: OUTPUT COMPARE MODES

FIGURE 15-2: OUTPUT COMPARE OPERATION

Note 1: Only OC1 and OC2 can trigger a DMA

data transfer.

2: See Section 13. “Output Compare”

(DS70209) in the “dsPIC33F/PIC24H

Family Reference Manual” for OCxR and

OCxRS register restrictions.

OCM<2:0> Mode OCx Pin Initial State OCx Interrupt Generation

000 Module Disabled Controlled by GPIO register —

001 Active-Low One-Shot 0OCx Rising edge

010 Active-High One-Shot 1OCx Falling edge

011 Toggle Mode Current output is maintained OCx Rising and Falling edge

100 Delayed One-Shot 0OCx Falling edge

101 Continuous Pulse mode 0OCx Falling edge

110 PWM mode without fault

protection

0, if OCxR is zero

1, if OCxR is non-zero

No interrupt

111 PWM mode with fault protection 0, if OCxR is zero

1, if OCxR is non-zero

OCFA Falling edge for OC1 to OC4

OCxRS

TMRy

OCxR

Timer is reset on

period match

Continuous Pulse Mode

(OCM = 101)

PWM Mode

(OCM = 110 or 111)

Active Low One-Shot

(OCM = 001)

Active High One-Shot

(OCM = 010)

Toggle Mode

(OCM = 011)

Delayed One-Shot

(OCM = 100)

Output Compare

Mode enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

15.2 Output Compare Resources

Many useful resources related to Output Compare are

provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

15.2.1 KEY RESOURCES

•Section 13. “Output Compare” (DS70209)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

15.3 Output Compare Registers

U-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

——OCSIDL — — — — —

bit 15 bit 8

U-0 U-0 U-0 R-0, HC R/W-0 R/W-0 R/W-0 R/W-0

— — — OCFLT OCTSEL OCM<2:0>

bit 7 bit 0

Legend: HC = Cleared in Hardware HS = Set in Hardware

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 OCSIDL: Stop Output Compare in Idle Mode Control bit

1 = Output Compare x halts in CPU Idle mode

0 = Output Compare x continues to operate in CPU Idle mode

bit 12-5 Unimplemented: Read as ‘0’

bit 4 OCFLT: PWM Fault Condition Status bit

1 = PWM Fault condition has occurred (cleared in hardware only)

0 = No PWM Fault condition has occurred

(This bit is only used when OCM<2:0> = 111).

bit 3 OCTSEL: Output Compare Timer Select bit

1 = Timer3 is the clock source for Compare x

0 = Timer2 is the clock source for Compare x

bit 2-0 OCM<2:0>: Output Compare Mode Select bits

111 = PWM mode on OCx, Fault pin enabled

110 = PWM mode on OCx, Fault pin disabled

101 = Initialize OCx pin low, generate continuous output pulses on OCx pin

100 = Initialize OCx pin low, generate single output pulse on OCx pin

011 = Compare event toggles OCx pin

010 = Initialize OCx pin high, compare event forces OCx pin low

001 = Initialize OCx pin low, compare event forces OCx pin high

000 = Output compare channel is disabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

16.0 MOTOR CONTROL PWM

MODULE

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 device supports

up to two dedicated Pulse Width Modulation (PWM)

modules. The PWM1 module is a 6-channel PWM

generator, and the PWM2 module is a 2-channel PWM

generator.

The PWM module has the following features:

• Up to 16-bit resolution

• On-the-fly PWM frequency changes

• Edge and Center-Aligned Output modes

• Single Pulse Generation mode

• Interrupt support for asymmetrical updates in

Center-Aligned mode

• Output override control for Electrically

Commutative Motor (ECM) operation or Brushless

DC (BLDC)

• Special Event Comparator for scheduling other

peripheral events

• Fault pins to optionally drive each of the PWM

output pins to a defined state

• Duty cycle updates configurable to be immediate

or synchronized to the PWM time base

16.1 PWM1: 6-Channel PWM Module

This module simplifies the task of generating multiple

synchronized PWM outputs. The following power and

motion control applications are supported by the PWM

module:

• 3-Phase AC Induction Motor

• Switched Reluctance (SR) Motor

• Brushless DC (BLDC) Motor

• Uninterruptible Power Supply (UPS)

This module contains three duty cycle generators,

numbered 1 through 3. The module has six PWM

output pins, numbered PWM1H1/PWM1L1 through

PWM1H3/PWM1L3. The six I/O pins are grouped into

high/low numbered pairs, denoted by the suffix H or L,

respectively. For complementary loads, the low PWM

pins are always the complement of the corresponding

high I/O pin.

16.2 PWM2: 2-Channel PWM Module

This module provides an additional pair of

complimentary PWM outputs that can be used for:

• Independent PFC correction in a motor system

• Induction cooking

This module contains a duty cycle generator that

provides two PWM outputs, numbered PWM2H1/

PWM2L1.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 14. “Motor

Control PWM” (DS70187) of the

“dsPIC33F/PIC24H Family Reference

Manual”, which is available from the

Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 16-1: 6-CHANNEL PWM MODULE BLOCK DIAGRAM (PWM1)

P1DC3

P1DC3 Buffer

PWM1CON1

PWM1CON2

P1TPER

Comparator

Channel 3 Dead-Time

Generator and

P1TCON

P1SECMP

Comparator Special Event Trigger

P1OVDCON

PWM Enable and Mode SFRs

PWM Manual

Control SFR

Channel 2 Dead-Time

Generator and

Channel 1 Dead-Time

Generator and

PWM Generator

PWM Generator 3

SEVTDIR

PTDIR

P1DTCON1

Dead-Time Control SFRs

PWM1L1

PWM1H1

PWM1L2

PWM1H2

Note: Details of PWM Generator #1 and #2 not shown for clarity.

16-bit Data Bus

PWM1L3

PWM1H3

P1DTCON2

P1FLTACON Fault Pin Control SFRs

PWM Time Base

Output

Driver

Block

FLTA1

Override Logic

Special Event

Postscaler

P1TPER Buffer

P1TMR

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 16-2: 2-CHANNEL PWM MODULE BLOCK DIAGRAM (PWM2)

P2DC1

P2DC1Buffer

PWM2CON1

PWM2CON2

P2TPER

Comparator

Channel 1 Dead-Time

Generator and

P2TCON

P2SECMP

Comparator Special Event Trigger

P2OVDCON

PWM Enable and Mode SFRs

PWM Manual

Control SFR

PWM Generator 1

SEVTDIR

PTDIR

P2DTCON1

Dead-Time Control SFRs

16-bit Data Bus

PWM2L1

PWM2H1

P2DTCON2

P2FLTACON Fault Pin Control SFRs

PWM Time Base

Output

Driver

Block

FLTA2

Override Logic

Special Event

Postscaler

P2TPER Buffer

P2TMR

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

16.3 Motor Control PWM Resources

Many useful resources related to Motor Control PWM

are provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

16.3.1 KEY RESOURCES

•Section 14. “Motor Control PWM” (DS70187)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

16.4 PWM Control Registers

R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

PTEN —PTSIDL— — — — —

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PTOPS<3:0> PTCKPS<1:0> PTMOD<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 PTEN: PWM Time Base Timer Enable bit

1 = PWM time base is on

0 = PWM time base is off

bit 14 Unimplemented: Read as ‘0’

bit 13 PTSIDL: PWM Time Base Stop in Idle Mode bit

1 = PWM time base halts in CPU Idle mode

0 = PWM time base runs in CPU Idle mode

bit 12-8 Unimplemented: Read as ‘0’

bit 7-4 PTOPS<3:0>: PWM Time Base Output Postscale Select bits

1111 = 1:16 postscale

•

0001 = 1:2 postscale

0000 = 1:1 postscale

bit 3-2 PTCKPS<1:0>: PWM Time Base Input Clock Prescale Select bits

11 = PWM time base input clock period is 64 TCY (1:64 prescale)

10 = PWM time base input clock period is 16 TCY (1:16 prescale)

01 = PWM time base input clock period is 4 TCY (1:4 prescale)

00 = PWM time base input clock period is TCY (1:1 prescale)

bit 1-0 PTMOD<1:0>: PWM Time Base Mode Select bits

11 = PWM time base operates in a Continuous Up/Down Count mode with interrupts for double

PWM updates

10 = PWM time base operates in a Continuous Up/Down Count mode

01 = PWM time base operates in Single Pulse mode

00 = PWM time base operates in a Free-Running mode

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PTDIR PTMR<14:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PTMR<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 PTDIR: PWM Time Base Count Direction Status bit (read-only)

1 = PWM time base is counting down

0 = PWM time base is counting up

bit 14-0 PTMR<14:0>: PWM Time Base Register Count Value bits

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— PTPER<14:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PTPER<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-0 PTPER<14:0>: PWM Time Base Period Value bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

SEVTDIR(1) SEVTCMP<14:8>(2)

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

SEVTCMP<7:0>(2)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 SEVTDIR: Special Event Trigger Time Base Direction bit(1)

1 = A Special Event Trigger occurs when the PWM time base is counting downward

0 = A Special Event Trigger occurs when the PWM time base is counting upward

bit 14-0 SEVTCMP<14:0>: Special Event Compare Value bits(2)

Note 1: This bit is compared with the PTDIR bit (PXTMR<15>) to generate the Special Event Trigger.

2: The PxSECMP<14:0> bits are compared with the PXTMR<14:0> bits to generate the Special Event

Trigger.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — PMOD3 PMOD2 PMOD1

bit 15 bit 8

U-0 R/W-1 R/W-1 R/W-1 U-0 R/W-1 R/W-1 R/W-1

— PEN3H(1) PEN2H(1) PEN1H(1) —PEN3L

(1) PEN2L(1) PEN1L(1)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 PMOD3:PMOD1: PWM I/O Pair Mode bits

1 = PWM I/O pin pair is in the Independent PWM Output mode

0 = PWM I/O pin pair is in the Complementary Output mode

bit 7 Unimplemented: Read as ‘0’

bit 6-4 PEN3H:PEN1H: PWMxH I/O Enable bits(1)

1 = PWMxH pin is enabled for PWM output

0 = PWMxH pin disabled, I/O pin becomes general purpose I/O

bit 3 Unimplemented: Read as ‘0’

bit 2-0 PEN3L:PEN1L: PWMxL I/O Enable bits(1)

1 = PWMxL pin is enabled for PWM output

0 = PWMxL pin disabled, I/O pin becomes general purpose I/O

Note 1: Reset condition of the PENxH and PENxL bits depends on the value of the PWMPIN Configuration bit in

the FPOR Configuration register.

2: PWM2 supports only one PWM I/O pin pair.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — — SEVOPS<3:0>

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — IUE OSYNC UDIS

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 Unimplemented: Read as ‘0’

bit 11-8 SEVOPS<3:0>: PWM Special Event Trigger Output Postscale Select bits

1111 = 1:16 postscale

•

0001 = 1:2 postscale

0000 = 1:1 postscale

bit 7-3 Unimplemented: Read as ‘0’

bit 2 IUE: Immediate Update Enable bit

1 = Updates to the active PxDC registers are immediate

0 = Updates to the active PxDC registers are synchronized to the PWM time base

bit 1 OSYNC: Output Override Synchronization bit

1 = Output overrides via the PxOVDCON register are synchronized to the PWM time base

0 = Output overrides via the PxOVDCON register occur on next TCY boundary

bit 0 UDIS: PWM Update Disable bit

1 = Updates from Duty Cycle and Period Buffer registers are disabled

0 = Updates from Duty Cycle and Period Buffer registers are enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DTBPS<1:0> DTB<5:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DTAPS<1:0> DTA<5:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 DTBPS<1:0>: Dead-Time Unit B Prescale Select bits

11 = Clock period for Dead-Time Unit B is 8 TCY

10 = Clock period for Dead-Time Unit B is 4 TCY

01 = Clock period for Dead-Time Unit B is 2 TCY

00 = Clock period for Dead-Time Unit B is TCY

bit 13-8 DTB<5:0>: Unsigned 6-bit Dead-Time Value for Dead-Time Unit B bits

bit 7-6 DTAPS<1:0>: Dead-Time Unit A Prescale Select bits

11 = Clock period for Dead-Time Unit A is 8 TCY

10 = Clock period for Dead-Time Unit A is 4 TCY

01 = Clock period for Dead-Time Unit A is 2 TCY

00 = Clock period for Dead-Time Unit A is TCY

bit 5-0 DTA<5:0>: Unsigned 6-bit Dead-Time Value for Dead-Time Unit A bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

—— DTS3A DTS3I DTS2A DTS2I DTS1A DTS1I

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-6 Unimplemented: Read as ‘0’

bit 5 DTS3A: Dead-Time Select for PWMxH3 Signal Going Active bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

bit 4 DTS3I: Dead-Time Select for PWMxL3 Signal Going Inactive bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

bit 3 DTS2A: Dead-Time Select for PWMxH2 Signal Going Active bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

bit 2 DTS2I: Dead-Time Select for PWMxL2 Signal Going Inactive bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

bit 1 DTS1A: Dead-Time Select for PWMxH1 Signal Going Active bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

bit 0 DTS1I: Dead-Time Select for PWMxL1 Signal Going Inactive bit

1 = Dead time provided from Unit B

0 = Dead time provided from Unit A

Note 1: PWM2 supports only one PWM I/O pin pair.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

—— FAOV3H FAOV3L FAOV2H FAOV2L FAOV1H FAOV1L

bit 15 bit 8

R/W-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

FLTAM — — — — FAEN3 FAEN2 FAEN1

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13-8 FAOVxH<3:1>:FAOVxL<3:1>: Fault Input A PWM Override Value bits

1 = The PWM output pin is driven active on an external Fault input event

0 = The PWM output pin is driven inactive on an external Fault input event

bit 7 FLTAM: Fault A Mode bit

1 = The Fault A input pin functions in the Cycle-by-Cycle mode

0 = The Fault A input pin latches all control pins to the programmed states in PxFLTACON<13:8>

bit 6-3 Unimplemented: Read as ‘0’

bit 2 FAEN3: Fault Input A Enable bit

1 = PWMxH3/PWMxL3 pin pair is controlled by Fault Input A

0 = PWMxH3/PWMxL3 pin pair is not controlled by Fault Input A

bit 1 FAEN2: Fault Input A Enable bit

1 = PWMxH2/PWMxL2 pin pair is controlled by Fault Input A

0 = PWMxH2/PWMxL2 pin pair is not controlled by Fault Input A

bit 0 FAEN1: Fault Input A Enable bit

1 = PWMxH1/PWMxL1 pin pair is controlled by Fault Input A

0 = PWMxH1/PWMxL1 pin pair is not controlled by Fault Input A

Note 1: PWM2 supports only one PWM I/O pin pair.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

—— POVD3H POVD3L POVD2H POVD2L POVD1H POVD1L

bit 15 bit 8

U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

—— POUT3H POUT3L POUT2H POUT2L POUT1H POUT1L

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13-8 POVDxH<3:1>:POVDxL<3:1>: PWM Output Override bits

1 = Output on PWMx I/O pin is controlled by the PWM generator

0 = Output on PWMx I/O pin is controlled by the value in the corresponding POUTxH:POUTxL bit

bit 7-6 Unimplemented: Read as ‘0’

bit 5-0 POUTxH<3:1>:POUTxL<3:1>: PWM Manual Output bits

1 = PWMx I/O pin is driven active when the corresponding POVDxH:POVDxL bit is cleared

0 = PWMx I/O pin is driven inactive when the corresponding POVDxH:POVDxL bit is cleared

Note 1: PWM2 supports only one PWM I/O pin pair.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC1<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC1<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 PDC1<15:0>: PWM Duty Cycle 1 Value bits

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC2<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC2<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 PDC2<15:0>: PWM Duty Cycle 2 Value bits

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC3<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PDC3<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 PDC3<15:0>: PWM Duty Cycle 3 Value bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

17.0 QUADRATURE ENCODER

INTERFACE (QEI) MODULE

This chapter describes the Quadrature Encoder

Interface (QEI) module and associated operational

modes. The QEI module provides the interface to incre-

mental encoders for obtaining mechanical position data.

The operational features of the QEI include:

• Three input channels for two phase signals and

index pulse

• 16-bit up/down position counter

• Count direction status

• Position Measurement (x2 and x4) mode

• Programmable digital noise filters on inputs

• Alternate 16-bit Timer/Counter mode

• Quadrature Encoder Interface interrupts

These operating modes are determined by setting the

appropriate bits, QEIM<2:0> bits (QEIxCON<10:8>).

Figure 17-1 depicts the Quadrature Encoder Interface

block diagram.

FIGURE 17-1: QUADRATURE ENCODER INTERFACE BLOCK DIAGRAM (x = 1 OR 2)

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 15. “Quadrature

Encoder Interface (QEI)” (DS70208) of

the “dsPIC33F/PIC24H Family

Reference Manual”, which is available

from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: An ‘x’ used in the names of pins, control/

status bits and registers denotes a

particular Quadrature Encoder Interface

(QEI) module number (x = 1 or 2).

16-bit Up/Down Counter

Comparator/

Max Count Register

QEAx

INDXx

1Up/Down

Existing Pin Logic

UPDNx

QEBx

QEIM<2:0>

Mode Select

(POSxCNT)

(MAXxCNT)

PCDOUT

QExIF

Event

Flag

Reset

Equal

TCY

TQCS TQCKPS<1:0>

TQGATE

QEIM<2:0>

Sleep Input

UPDN_SRC

QEIxCON<11> Zero Detect

Synchronize

Det 1, 8, 64, 256

Prescaler

Quadrature

Encoder

Interface Logic

Programmable

Digital Filter

Programmable

Digital Filter

Programmable

Digital Filter

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

17.1 QEI Resources

Many useful resources related to QEI are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

17.1.1 KEY RESOURCES

•Section 15. “Quadature Encoder Interface

(QEI)” (DS70208)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

17.2 QEI Control Registers

R/W-0 U-0 R/W-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0

CNTERR(1) — QEISIDL INDEX UPDN(2) QEIM<2:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

SWPAB PCDOUT TQGATE TQCKPS<1:0> POSRES TQCS UPDN_SRC

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 CNTERR: Count Error Status Flag bit(1)

1 = Position count error has occurred

0 = No position count error has occurred

bit 14 Unimplemented: Read as ‘0’

bit 13 QEISIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12 INDEX: Index Pin State Status bit (read-only)

1 = Index pin is High

0 = Index pin is Low

bit 11 UPDN: Position Counter Direction Status bit(2)

1 = Position Counter Direction is positive (+)

0 = Position Counter Direction is negative (-)

bit 10-8 QEIM<2:0>: Quadrature Encoder Interface Mode Select bits

111 = Quadrature Encoder Interface enabled (x4 mode) with position counter reset by match

(MAXxCNT)

110 = Quadrature Encoder Interface enabled (x4 mode) with Index Pulse reset of position counter

101 = Quadrature Encoder Interface enabled (x2 mode) with position counter reset by match

(MAXxCNT)

100 = Quadrature Encoder Interface enabled (x2 mode) with Index Pulse reset of position counter

011 = Unused (Module disabled)

010 = Unused (Module disabled)

001 = Starts 16-bit Timer

000 = Quadrature Encoder Interface/Timer off

bit 7 SWPAB: Phase A and Phase B Input Swap Select bit

1 = Phase A and Phase B inputs swapped

0 = Phase A and Phase B inputs not swapped

bit 6 PCDOUT: Position Counter Direction State Output Enable bit

1 = Position Counter Direction Status Output Enable (QEI logic controls state of I/O pin)

0 = Position Counter Direction Status Output Disabled (Normal I/O pin operation)

Note 1: This bit only applies when QEIM<2:0> = ‘110’ or ‘100’.

2: Read-only bit when QEIM<2:0> = ‘1XX’. Read/write bit when QEIM<2:0> = ‘001’.

3: Prescaler utilized for 16-bit Timer mode only.

4: This bit applies only when QEIM<2:0> = 100 or 110.

5: When configured for QEI mode, this control bit is a ‘don’t care’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 5 TQGATE: Timer Gated Time Accumulation Enable bit

1 = Timer gated time accumulation enabled

0 = Timer gated time accumulation disabled

bit 4-3 TQCKPS<1:0>: Timer Input Clock Prescale Select bits(3)

11 = 1:256 prescale value

10 = 1:64 prescale value

01 = 1:8 prescale value

00 = 1:1 prescale value

bit 2 POSRES: Position Counter Reset Enable bit(4)

1 = Index Pulse resets Position Counter

0 = Index Pulse does not reset Position Counter

bit 1 TQCS: Timer Clock Source Select bit

1 = External clock from pin QEAx (on the rising edge)

0 = Internal clock (TCY)

bit 0 UPDN_SRC: Position Counter Direction Selection Control bit(5)

1 = QEBx pin state defines position counter direction

0 = Control/Status bit, UPDN (QEIxCON<11>), defines timer counter (POSxCNT) direction

Note 1: This bit only applies when QEIM<2:0> = ‘110’ or ‘100’.

2: Read-only bit when QEIM<2:0> = ‘1XX’. Read/write bit when QEIM<2:0> = ‘001’.

3: Prescaler utilized for 16-bit Timer mode only.

4: This bit applies only when QEIM<2:0> = 100 or 110.

5: When configured for QEI mode, this control bit is a ‘don’t care’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — —IMV<1:0>CEID

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0

QEOUT QECK<2:0> — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-9 IMV<1:0>: Index Match Value bits – These bits allow the user application to specify the state of the

QEAx and QEBx input pins during an Index pulse when the POSxCNT register is to be reset.

In x4 Quadrature Count Mode:

IMV1 = Required State of Phase B input signal for match on index pulse

IMV0 = Required State of Phase A input signal for match on index pulse

In x4 Quadrature Count Mode:

IMV1 = Selects Phase input signal for Index state match (0 = Phase A, 1 = Phase B)

IMV0 = Required state of the selected Phase input signal for match on index pulse

bit 8 CEID: Count Error Interrupt Disable bit

1 = Interrupts due to count errors are disabled

0 = Interrupts due to count errors are enabled

bit 7 QEOUT: QEAx/QEBx/INDXx Pin Digital Filter Output Enable bit

1 = Digital filter outputs enabled

0 = Digital filter outputs disabled (normal pin operation)

bit 6-4 QECK<2:0>: QEAx/QEBx/INDXx Digital Filter Clock Divide Select bits

111 = 1:256 Clock Divide

110 = 1:128 Clock Divide

101 = 1:64 Clock Divide

100 = 1:32 Clock Divide

011 = 1:16 Clock Divide

010 = 1:4 Clock Divide

001 = 1:2 Clock Divide

000 = 1:1 Clock Divide

bit 3-0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

18.0 SERIAL PERIPHERAL

INTERFACE (SPI)

The Serial Peripheral Interface (SPI) module is a

synchronous serial interface useful for communicating

with other peripheral or microcontroller devices. These

peripheral devices can be serial EEPROMs, shift

registers, display drivers, analog-to-digital converters,

etc. The SPI module is compatible with Motorola® SPI

and SIOP.

Each SPI module consists of a 16-bit shift register,

SPIxSR (where x = 1 or 2), used for shifting data in and

out, and a buffer register, SPIxBUF. A control register,

SPIxCON, configures the module. Additionally, a status

The serial interface consists of 4 pins:

• SDIx (serial data input)

• SDOx (serial data output)

• SCKx (shift clock input or output)

• SSx (active-low slave select)

In Master mode operation, SCK is a clock output. In

Slave mode, it is a clock input.

FIGURE 18-1: SPI MODULE BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 18. “Serial

Peripheral Interface (SPI)” (DS70206)

of the “dsPIC33F/PIC24H Family

Reference Manual”, which is available

from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Internal Data Bus

SDIx

SDOx

SSx

SCKx

SPIxSR

bit 0

Shift Control

Edge

Select

FCY

Primary

1:1/4/16/64

Enable

Prescaler

Sync

SPIxBUF

Control

Transfer

Write SPIxBUF

Read SPIxBUF

SPIxCON1<1:0>

SPIxCON1<4:2>

Master Clock

Clock

Control

Secondary

Prescaler

1:1 to 1:8

SPIxRXB SPIxTXB

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

18.1 SPI Helpful Tips

1. In Frame mode, if there is a possibility that the

master may not be initialized before the slave:

a) If FRMPOL (SPIxCON2<13>) = 1, use a

pull-down resistor on SSx.

b) If FRMPOL = 0, use a pull-up resistor on

SSx.

2. In non-framed 3-wire mode, (i.e., not using SSx

from a master):

a) If CKP (SPIxCON1<6>) = 1, always place a

pull-up resistor on SSx.

b) If CKP = 0, always place a pull-down

resistor on SSx.

3. FRMEN (SPIxCON2<15>) = 1 and SSEN

(SPIxCON1<7>) = 1 are exclusive and invalid.

In Frame mode, SCKx is continuous and the

Frame sync pulse is active on the SSx pin,

which indicates the start of a data frame.

4. In Master mode only, set the SMP bit

(SPIxCON1<9>) to a ‘1’ for the fastest SPI data

rate possible. The SMP bit can only be set at the

same time or after the MSTEN bit

(SPIxCON1<5>) is set.

To avoid invalid slave read data to the master, the

user’s master software must guarantee enough time for

slave software to fill its write buffer before the user

application initiates a master write/read cycle. It is

always advisable to preload the SPIxBUF transmit reg-

ister in advance of the next master transaction cycle.

SPIxBUF is transferred to the SPI shift register and is

empty once the data transmission begins.

18.2 SPI Resources

Many useful resources related to SPI are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

18.2.1 KEY RESOURCES

•

Section 18. “Serial Peripheral Interface (SPI)”

(DS70206)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: This insures that the first frame

transmission after initialization is not

shifted or corrupted.

Note: This will insure that during power-up and

initialization the master/slave will not lose

sync due to an errant SCK transition that

would cause the slave to accumulate data

shift errors for both transmit and receive

appearing as corrupted data.

Note: Not all third-party devices support Frame

mode timing. Refer to the SPI electrical

characteristics for details.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

18.3 SPI Control Registers

R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0

SPIEN —SPISIDL— — — — —

bit 15 bit 8

U-0 R/C-0 U-0 U-0 U-0 U-0 R-0 R-0

— SPIROV — — — — SPITBF SPIRBF

bit 7 bit 0

Legend: C = Clearable bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 SPIEN: SPIx Enable bit

1 = Enables module and configures SCKx, SDOx, SDIx and SSx as serial port pins

0 = Disables module

bit 14 Unimplemented: Read as ‘0’

bit 13 SPISIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12-7 Unimplemented: Read as ‘0’

bit 6 SPIROV: Receive Overflow Flag bit

1 = A new byte/word is completely received and discarded. The user software has not read the

previous data in the SPIxBUF register

0 = No overflow has occurred

bit 5-2 Unimplemented: Read as ‘0’

bit 1 SPITBF: SPIx Transmit Buffer Full Status bit

1 = Transmit not yet started, SPIxTXB is full

0 = Transmit started, SPIxTXB is empty

Automatically set in hardware when CPU writes SPIxBUF location, loading SPIxTXB

Automatically cleared in hardware when SPIx module transfers data from SPIxTXB to SPIxSR

bit 0 SPIRBF: SPIx Receive Buffer Full Status bit

1 = Receive complete, SPIxRXB is full

0 = Receive is not complete, SPIxRXB is empty

Automatically set in hardware when SPIx transfers data from SPIxSR to SPIxRXB

Automatically cleared in hardware when core reads SPIxBUF location, reading SPIxRXB

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — DISSCK DISSDO MODE16 SMP CKE(1)

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

SSEN(3) CKP MSTEN SPRE<2:0>(2) PPRE<1:0>(2)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12 DISSCK: Disable SCKx Pin bit (SPI Master modes only)

1 = Internal SPI clock is disabled, pin functions as I/O

0 = Internal SPI clock is enabled

bit 11 DISSDO: Disable SDOx Pin bit

1 = SDOx pin is not used by module; pin functions as I/O

0 = SDOx pin is controlled by the module

bit 10 MODE16: Word/Byte Communication Select bit

1 = Communication is word-wide (16 bits)

0 = Communication is byte-wide (8 bits)

bit 9 SMP: SPIx Data Input Sample Phase bit

Master mode:

1 = Input data sampled at end of data output time

0 = Input data sampled at middle of data output time

Slave mode:

SMP must be cleared when SPIx is used in Slave mode.

bit 8 CKE: SPIx Clock Edge Select bit(1)

1 = Serial output data changes on transition from active clock state to Idle clock state (see bit 6)

0 = Serial output data changes on transition from Idle clock state to active clock state (see bit 6)

bit 7 SSEN: Slave Select Enable bit (Slave mode)(3)

1 = SSx pin used for Slave mode

0 = SSx pin not used by module. Pin controlled by port function

bit 6 CKP: Clock Polarity Select bit

1 = Idle state for clock is a high level; active state is a low level

0 = Idle state for clock is a low level; active state is a high level

bit 5 MSTEN: Master Mode Enable bit

1 = Master mode

0 = Slave mode

Note 1: This bit is not used in Framed SPI modes. Program this bit to ‘0’ for the Framed SPI modes (FRMEN = 1).

2: Do not set both Primary and Secondary prescalers to a value of 1:1.

3: This bit must be cleared when FRMEN = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 4-2 SPRE<2:0>: Secondary Prescale bits (Master mode)(2)

111 = Secondary prescale 1:1

110 = Secondary prescale 2:1

•

000 = Secondary prescale 8:1

bit 1-0 PPRE<1:0>: Primary Prescale bits (Master mode)(2)

11 = Primary prescale 1:1

10 = Primary prescale 4:1

01 = Primary prescale 16:1

00 = Primary prescale 64:1

Note 1: This bit is not used in Framed SPI modes. Program this bit to ‘0’ for the Framed SPI modes (FRMEN = 1).

2: Do not set both Primary and Secondary prescalers to a value of 1:1.

3: This bit must be cleared when FRMEN = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0

FRMEN SPIFSD FRMPOL — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 U-0

— — — — — — FRMDLY —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 FRMEN: Framed SPIx Support bit

1 = Framed SPIx support enabled (SSx pin used as frame sync pulse input/output)

0 = Framed SPIx support disabled

bit 14 SPIFSD: Frame Sync Pulse Direction Control bit

1 = Frame sync pulse input (slave)

0 = Frame sync pulse output (master)

bit 13 FRMPOL: Frame Sync Pulse Polarity bit

1 = Frame sync pulse is active-high

0 = Frame sync pulse is active-low

bit 12-2 Unimplemented: Read as ‘0’

bit 1 FRMDLY: Frame Sync Pulse Edge Select bit

1 = Frame sync pulse coincides with first bit clock

0 = Frame sync pulse precedes first bit clock

bit 0 Unimplemented: This bit must not be set to ‘1’ by the user application

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

19.0 INTER-INTEGRATED

CIRCUIT™ (I2C™)

The Inter-Integrated Circuit (I2C) module provides

complete hardware support for both Slave and

Multi-Master modes of the I2C serial communication

standard, with a 16-bit interface.

The I2C module has a 2-pin interface:

• The SCLx pin is clock

• The SDAx pin is data

The I2C module offers the following key features:

•I

2C interface supporting both Master and Slave

modes of operation

•I

2C Slave mode supports 7-bit and 10-bit

addressing

•I

2C Master mode supports 7-bit and 10-bit

addressing

•I

2C port allows bidirectional transfers between

master and slaves

• Serial clock synchronization for I2C port can be

used as a handshake mechanism to suspend and

resume serial transfer (SCLREL control)

•I

2C supports multi-master operation, detects bus

collision and arbitrates accordingly

19.1 Operating Modes

The hardware fully implements all the master and slave

functions of the I2C Standard and Fast mode

specifications, as well as 7 and 10-bit addressing.

The I2C module can operate either as a slave or a

master on an I2C bus.

The following types of I2C operation are supported:

•I

2C slave operation with 7-bit addressing

•I

2C slave operation with 10-bit addressing

•I

2C master operation with 7-bit or 10-bit addressing

For details about the communication sequence in each

of these modes, refer to the “dsPIC33F/PIC24H Family

Reference Manual”. Please see the Microchip web site

(www.microchip.com) for the latest dsPIC33F/PIC24H

Family Reference Manual chapters.

Note 1: This data sheet summarizes the fea-

tures of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 19.

“Inter-Integrated Circuit™ (I2C™)”

(DS70195) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 19-1: I2C™ BLOCK DIAGRAM (X = 1)

Internal

Data Bus

SCLx

SDAx

Shift

Match Detect

I2CxADD

Start and Stop

Bit Detect

Clock

Address Match

Clock

Stretching

I2CxTRN

LSb

Shift Clock

BRG Down Counter

Reload

Control

TCY/2

Start and Stop

Bit Generation

Acknowledge

Generation

Collision

Detect

I2CxCON

I2CxSTAT

Control Logic

Read

LSb

Write

Read

I2CxBRG

I2CxRSR

Write

Read

Write

Read

Write

Read

Write

Read

Write

Read

I2CxMSK

I2CxRCV

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

19.2 I2C Resources

Many useful resources related to I2C are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

19.2.1 KEY RESOURCES

•Section 19. “Inter-Integrated Circuit™ (I2C™)”

(DS70195)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

19.3 I2C Registers

The I2CxCON and I2CxSTAT are control and status

registers, respectively. The I2CxCON register is

readable and writable. The lower six bits of I2CxSTAT

are read-only. The remaining bits of the I2CxSTAT are

read/write:

• I2CxRSR is the shift register used for shifting data

internal to the module and the user application

has no access to it

• I2CxRCV is the receive buffer and the register to

which data bytes are written, or from which data

bytes are read

• I2CxTRN is the transmit register to which bytes

are written during a transmit operation

• The I2CxADD register holds the slave address

• A status bit, ADD10, indicates 10-bit Address

mode

• The I2CxBRG acts as the Baud Rate Generator

(BRG) reload value

In receive operations, I2CxRSR and I2CxRCV together

form a double-buffered receiver. When I2CxRSR

receives a complete byte, it is transferred to I2CxRCV,

and an interrupt pulse is generated.

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwprod-

ucts/Devices.aspx?dDoc-

Name=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 R/W-0 R/W-1, HC R/W-0 R/W-0 R/W-0 R/W-0

I2CEN — I2CSIDL SCLREL IPMIEN A10M DISSLW SMEN

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0, HC R/W-0, HC R/W-0, HC R/W-0, HC R/W-0, HC

GCEN STREN ACKDT ACKEN RCEN PEN RSEN SEN

bit 7 bit 0

Legend: U = Unimplemented bit, read as ‘0’

R = Readable bit W = Writable bit HS = Set in hardware HC = Cleared in Hardware

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 I2CEN: I2Cx Enable bit

1 = Enables the I2Cx module and configures the SDAx and SCLx pins as serial port pins

0 = Disables the I2Cx module. All I2C™ pins are controlled by port functions

bit 14 Unimplemented: Read as ‘0’

bit 13 I2CSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters an Idle mode

0 = Continue module operation in Idle mode

bit 12 SCLREL: SCLx Release Control bit (when operating as I2C slave)

1 = Release SCLx clock

0 = Hold SCLx clock low (clock stretch)

If STREN = 1:

Bit is R/W (i.e., software can write ‘0’ to initiate stretch and write ‘1’ to release clock). Hardware clear

at beginning of slave transmission. Hardware clear at end of slave reception.

If STREN = 0:

Bit is R/S (i.e., software can only write ‘1’ to release clock). Hardware clear at beginning of slave

transmission.

bit 11 IPMIEN: Intelligent Peripheral Management Interface (IPMI) Enable bit

1 = IPMI mode is enabled; all addresses Acknowledged

0 = IPMI mode disabled

bit 10 A10M: 10-bit Slave Address bit

1 = I2CxADD is a 10-bit slave address

0 = I2CxADD is a 7-bit slave address

bit 9 DISSLW: Disable Slew Rate Control bit

1 = Slew rate control disabled

0 = Slew rate control enabled

bit 8 SMEN: SMbus Input Levels bit

1 = Enable I/O pin thresholds compliant with SMbus specification

0 = Disable SMbus input thresholds

bit 7 GCEN: General Call Enable bit (when operating as I2C slave)

1 = Enable interrupt when a general call address is received in the I2CxRSR

(module is enabled for reception)

0 = General call address disabled

bit 6 STREN: SCLx Clock Stretch Enable bit (when operating as I2C slave)

Used in conjunction with SCLREL bit.

1 = Enable software or receive clock stretching

0 = Disable software or receive clock stretching

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 5 ACKDT: Acknowledge Data bit (when operating as I2C master, applicable during master receive)

Value that is transmitted when the software initiates an Acknowledge sequence.

1 = Send NACK during Acknowledge

0 = Send ACK during Acknowledge

bit 4 ACKEN: Acknowledge Sequence Enable bit

(when operating as I2C master, applicable during master receive)

1 = Initiate Acknowledge sequence on SDAx and SCLx pins and transmit ACKDT data bit.

Hardware clear at end of master Acknowledge sequence

0 = Acknowledge sequence not in progress

bit 3 RCEN: Receive Enable bit (when operating as I2C master)

1 = Enables Receive mode for I2C. Hardware clear at end of eighth bit of master receive data byte

0 = Receive sequence not in progress

bit 2 PEN: Stop Condition Enable bit (when operating as I2C master)

1 = Initiate Stop condition on SDAx and SCLx pins. Hardware clear at end of master Stop sequence

0 = Stop condition not in progress

bit 1 RSEN: Repeated Start Condition Enable bit (when operating as I2C master)

1 = Initiate Repeated Start condition on SDAx and SCLx pins. Hardware clear at end of

master Repeated Start sequence

0 = Repeated Start condition not in progress

bit 0 SEN: Start Condition Enable bit (when operating as I2C master)

1 = Initiate Start condition on SDAx and SCLx pins. Hardware clear at end of master Start sequence

0 = Start condition not in progress

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0, HSC R-0, HSC U-0 U-0 U-0 R/C-0, HS R-0, HSC R-0, HSC

ACKSTAT TRSTAT — — — BCL GCSTAT ADD10

bit 15 bit 8

R/C-0, HS R/C-0, HS R-0, HSC R/C-0, HSC R/C-0, HSC R-0, HSC R-0, HSC R-0, HSC

IWCOL I2COV D_A P S R_W RBF TBF

bit 7 bit 0

Legend: C = Clear only bit U = Unimplemented bit, read as ‘0’

R = Readable bit W = Writable bit HS = Set in hardware HSC = Hardware set/cleared

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ACKSTAT: Acknowledge Status bit

(when operating as I2C™ master, applicable to master transmit operation)

1 = NACK received from slave

0 = ACK received from slave

Hardware set or clear at end of slave Acknowledge.

bit 14 TRSTAT: Transmit Status bit (when operating as I2C master, applicable to master transmit operation)

1 = Master transmit is in progress (8 bits + ACK)

0 = Master transmit is not in progress

Hardware set at beginning of master transmission. Hardware clear at end of slave Acknowledge.

bit 13-11 Unimplemented: Read as ‘0’

bit 10 BCL: Master Bus Collision Detect bit

1 = A bus collision has been detected during a master operation

0 = No collision

Hardware set at detection of bus collision.

bit 9 GCSTAT: General Call Status bit

1 = General call address was received

0 = General call address was not received

Hardware set when address matches general call address. Hardware clear at Stop detection.

bit 8 ADD10: 10-bit Address Status bit

1 = 10-bit address was matched

0 = 10-bit address was not matched

Hardware set at match of 2nd byte of matched 10-bit address. Hardware clear at Stop detection.

bit 7 IWCOL: Write Collision Detect bit

1 = An attempt to write the I2CxTRN register failed because the I2C module is busy

0 = No collision

Hardware set at occurrence of write to I2CxTRN while busy (cleared by software).

bit 6 I2COV: Receive Overflow Flag bit

1 = A byte was received while the I2CxRCV register is still holding the previous byte

0 = No overflow

Hardware set at attempt to transfer I2CxRSR to I2CxRCV (cleared by software).

bit 5 D_A: Data/Address bit (when operating as I2C slave)

1 = Indicates that the last byte received was data

0 = Indicates that the last byte received was device address

Hardware clear at device address match. Hardware set by reception of slave byte.

bit 4 P: Stop bit

1 = Indicates that a Stop bit has been detected last

0 = Stop bit was not detected last

Hardware set or clear when Start, Repeated Start or Stop detected.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 3 S: Start bit

1 = Indicates that a Start (or Repeated Start) bit has been detected last

0 = Start bit was not detected last

Hardware set or clear when Start, Repeated Start or Stop detected.

bit 2 R_W: Read/Write Information bit (when operating as I2C slave)

1 = Read – indicates data transfer is output from slave

0 = Write – indicates data transfer is input to slave

Hardware set or clear after reception of I2C device address byte.

bit 1 RBF: Receive Buffer Full Status bit

1 = Receive complete, I2CxRCV is full

0 = Receive not complete, I2CxRCV is empty

Hardware set when I2CxRCV is written with received byte. Hardware clear when software

reads I2CxRCV.

bit 0 TBF: Transmit Buffer Full Status bit

1 = Transmit in progress, I2CxTRN is full

0 = Transmit complete, I2CxTRN is empty

Hardware set when software writes I2CxTRN. Hardware clear at completion of data transmission.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

— — — — — — AMSK9 AMSK8

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

AMSK7 AMSK6 AMSK5 AMSK4 AMSK3 AMSK2 AMSK1 AMSK0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-10 Unimplemented: Read as ‘0’

bit 9-0 AMSKx: Mask for Address bit x Select bit

1 = Enable masking for bit x of incoming message address; bit match not required in this position

0 = Disable masking for bit x; bit match required in this position

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

20.0 UNIVERSAL ASYNCHRONOUS

RECEIVER TRANSMITTER

(UART)

The Universal Asynchronous Receiver Transmitter

(UART) module is one of the serial I/O modules

available in the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 device family. The UART is a full-duplex

asynchronous system that can communicate with

peripheral devices, such as personal computers,

LIN 2.0, RS-232 and RS-485 interfaces. The module

also supports a hardware flow control option with the

UxCTS and UxRTS pins and also includes an IrDA®

encoder and decoder.

The primary features of the UART module are:

• Full-Duplex, 8- or 9-bit Data Transmission through

the UxTX and UxRX pins

• Even, Odd or No Parity options (for 8-bit data)

• One or two stop bits

• Hardware flow control option with UxCTS and

UxRTS pins

• Fully integrated Baud Rate Generator with 16-bit

prescaler

• Baud rates ranging from 10 Mbps to 38 bps at

40 MIPS

• Baud rates ranging from 4 Mbps to 61 bps at 4x mode

at 40 MIPS

• 4-deep First-In First-Out (FIFO) Transmit Data

buffer

• 4-deep FIFO Receive Data buffer

• Parity, framing and buffer overrun error detection

• Support for 9-bit mode with Address Detect

(9th bit = 1)

• Transmit and Receive interrupts

• A separate interrupt for all UART error conditions

• Loopback mode for diagnostic support

• Support for sync and break characters

• Support for automatic baud rate detection

•IrDA

® encoder and decoder logic

• 16x baud clock output for IrDA® support

A simplified block diagram of the UART module is

shown in Figure 20-1. The UART module consists of

these key hardware elements:

• Baud Rate Generator

• Asynchronous Transmitter

• Asynchronous Receiver

FIGURE 20-1: UART SIMPLIFIED BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 17. “UART”

(DS70188) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

UxRX

Hardware Flow Control

UART Receiver

UART Transmitter UxTX

Baud Rate Generator

UxRTS/BLCKx

IrDA®

UxCTS

Note 1: Both UART1 and UART2 can trigger a DMA data transfer.

2: If DMA transfers are required, the UART TX/RX FIFO buffer must be set to a size of 1 byte/word

(i.e., UTXISEL<1:0> = 00 and URXISEL<1:0> = 00).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

20.1 UART Helpful Tips

1. In multi-node direct-connect UART networks,

UART receive inputs react to the

complementary logic level defined by the

URXINV bit (UxMODE<4>), which defines the

idle state, the default of which is logic high, (i.e.,

URXINV = 0). Because remote devices do not

initialize at the same time, it is likely that one of

the devices, because the RX line is floating, will

trigger a start bit detection and will cause the

first byte received after the device has been ini-

tialized to be invalid. To avoid this situation, the

user should use a pull-up or pull-down resistor

on the RX pin depending on the value of the

URXINV bit.

a) If URXINV = 0, use a pull-up resistor on the

RX pin.

b) If URXINV = 1, use a pull-down resistor on

the RX pin.

2. The first character received on a wake-up from

Sleep mode caused by activity on the UxRX pin

of the UART module will be invalid. In Sleep

mode, peripheral clocks are disabled. By the

time the oscillator system has restarted and

stabilized from Sleep mode, the baud rate bit

sampling clock relative to the incoming UxRX bit

timing is no longer synchronized, resulting in the

first character being invalid. This is to be

expected.

20.2 UART Resources

Many useful resources related to UART are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

20.2.1 KEY RESOURCES

•Section 17. “UART” (DS70188)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

20.3 UART Control Registers

R/W-0 U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0

UARTEN(1) — USIDL IREN(2) RTSMD —UEN<1:0>

bit 15 bit 8

R/W-0, HC R/W-0 R/W-0, HC R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

WAKE LPBACK ABAUD URXINV BRGH PDSEL<1:0> STSEL

bit 7 bit 0

Legend: HC = Hardware cleared

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 UARTEN: UARTx Enable bit

1 = UARTx is enabled; all UARTx pins are controlled by UARTx as defined by UEN<1:0>

0 = UARTx is disabled; all UARTx pins are controlled by port latches; UARTx power consumption

minimal

bit 14 Unimplemented: Read as ‘0’

bit 13 USIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12 IREN: IrDA® Encoder and Decoder Enable bit(2)

1 = IrDA encoder and decoder enabled

0 = IrDA encoder and decoder disabled

bit 11 RTSMD: Mode Selection for UxRTS Pin bit

1 =UxRTS pin in Simplex mode

0 =UxRTS

pin in Flow Control mode

bit 10 Unimplemented: Read as ‘0’

bit 9-8 UEN<1:0>: UARTx Enable bits

11 = UxTX, UxRX and BCLK pins are enabled and used; UxCTS pin controlled by port latches

10 = UxTX, UxRX, UxCTS and UxRTS pins are enabled and used

01 = UxTX, UxRX and UxRTS pins are enabled and used; UxCTS pin controlled by port latches

00 = UxTX and UxRX pins are enabled and used; UxCTS and UxRTS/BCLK pins controlled by

port latches

bit 7 WAKE: Wake-up on Start bit Detect During Sleep Mode Enable bit

1 = UARTx continues to sample the UxRX pin; interrupt generated on falling edge; bit cleared

in hardware on following rising edge

0 = No wake-up enabled

bit 6 LPBACK: UARTx Loopback Mode Select bit

1 = Enable Loopback mode

0 = Loopback mode is disabled

bit 5 ABAUD: Auto-Baud Enable bit

1 = Enable baud rate measurement on the next character – requires reception of a Sync field (55h)

before other data; cleared in hardware upon completion

0 = Baud rate measurement disabled or completed

Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for

information on enabling the UART module for receive or transmit operation.

2: This feature is only available for the 16x BRG mode (BRGH = 0).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 4 URXINV: Receive Polarity Inversion bit

1 = UxRX Idle state is ‘0’

0 = UxRX Idle state is ‘1’

bit 3 BRGH: High Baud Rate Enable bit

1 = BRG generates 4 clocks per bit period (4x baud clock, High-Speed mode)

0 = BRG generates 16 clocks per bit period (16x baud clock, Standard mode)

bit 2-1 PDSEL<1:0>: Parity and Data Selection bits

11 = 9-bit data, no parity

10 = 8-bit data, odd parity

01 = 8-bit data, even parity

00 = 8-bit data, no parity

bit 0 STSEL: Stop Bit Selection bit

1 = Two Stop bits

0 = One Stop bit

Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for

information on enabling the UART module for receive or transmit operation.

2: This feature is only available for the 16x BRG mode (BRGH = 0).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 R/W-0, HC R/W-0 R-0 R-1

UTXISEL1 UTXINV UTXISEL0 — UTXBRK UTXEN(1) UTXBF TRMT

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R-1 R-0 R-0 R/C-0 R-0

URXISEL<1:0> ADDEN RIDLE PERR FERR OERR URXDA

bit 7 bit 0

Legend: C = Clear only bit HC = Hardware cleared

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15,13 UTXISEL<1:0>: Transmission Interrupt Mode Selection bits

11 = Reserved; do not use

10 = Interrupt when a character is transferred to the Transmit Shift register, and as a result, the

transmit buffer becomes empty

01 = Interrupt when the last character is shifted out of the Transmit Shift register; all transmit

operations are completed

00 = Interrupt when a character is transferred to the Transmit Shift register (this implies there is

at least one character open in the transmit buffer)

bit 14 UTXINV: Transmit Polarity Inversion bit

If IREN = 0:

1 = UxTX Idle state is ‘0’

0 = UxTX Idle state is ‘1’

If IREN = 1:

1 = IrDA encoded UxTX Idle state is ‘1’

0 = IrDA encoded UxTX Idle state is ‘0’

bit 12 Unimplemented: Read as ‘0’

bit 11 UTXBRK: Transmit Break bit

1 = Send Sync Break on next transmission – Start bit, followed by twelve ‘0’ bits, followed by Stop bit;

cleared by hardware upon completion

0 = Sync Break transmission disabled or completed

bit 10 UTXEN: Transmit Enable bit(1)

1 = Transmit enabled, UxTX pin controlled by UARTx

0 = Transmit disabled, any pending transmission is aborted and buffer is reset. UxTX pin controlled

by port

bit 9 UTXBF: Transmit Buffer Full Status bit (read-only)

1 = Transmit buffer is full

0 = Transmit buffer is not full, at least one more character can be written

bit 8 TRMT: Transmit Shift Register Empty bit (read-only)

1 = Transmit Shift register is empty and transmit buffer is empty (the last transmission has completed)

0 = Transmit Shift register is not empty, a transmission is in progress or queued

bit 7-6 URXISEL<1:0>: Receive Interrupt Mode Selection bits

11 = Interrupt is set on UxRSR transfer making the receive buffer full (i.e., has 4 data characters)

10 = Interrupt is set on UxRSR transfer making the receive buffer 3/4 full (i.e., has 3 data characters)

0x = Interrupt is set when any character is received and transferred from the UxRSR to the receive

buffer. Receive buffer has one or more characters

Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for

information on enabling the UART module for transmit operation.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 5 ADDEN: Address Character Detect bit (bit 8 of received data = 1)

1 = Address Detect mode enabled. If 9-bit mode is not selected, this does not take effect

0 = Address Detect mode disabled

bit 4 RIDLE: Receiver Idle bit (read-only)

1 = Receiver is Idle

0 = Receiver is active

bit 3 PERR: Parity Error Status bit (read-only)

1 = Parity error has been detected for the current character (character at the top of the receive FIFO)

0 = Parity error has not been detected

bit 2 FERR: Framing Error Status bit (read-only)

1 = Framing error has been detected for the current character (character at the top of the receive

FIFO)

0 = Framing error has not been detected

bit 1 OERR: Receive Buffer Overrun Error Status bit (read/clear only)

1 = Receive buffer has overflowed

0 = Receive buffer has not overflowed. Clearing a previously set OERR bit (1 → 0 transition) resets

the receiver buffer and the UxRSR to the empty state

bit 0 URXDA: Receive Buffer Data Available bit (read-only)

1 = Receive buffer has data, at least one more character can be read

0 = Receive buffer is empty

Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for

information on enabling the UART module for transmit operation.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.0 ENHANCED CAN (ECAN™)

MODULE

21.1 Overview

The Enhanced Controller Area Network (ECAN)

module is a serial interface, useful for communicating

with other CAN modules or microcontroller devices.

This interface/protocol was designed to allow

communications within noisy environments. The

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 devices contain up to

two ECAN modules.

The ECAN module is a communication controller

implementing the CAN 2.0 A/B protocol, as defined in

the BOSCH CAN specification. The module supports

CAN 1.2, CAN 2.0A, CAN 2.0B Passive and CAN 2.0B

Active versions of the protocol. The module implemen-

tation is a full CAN system. The CAN specification is

not covered within this data sheet. The reader can refer

to the BOSCH CAN specification for further details.

The module features are as follows:

• Implementation of the CAN protocol, CAN 1.2,

CAN 2.0A and CAN 2.0B

• Standard and extended data frames

• 0-8 bytes data length

• Programmable bit rate up to 1 Mbit/sec

• Automatic response to remote transmission

requests

• Up to eight transmit buffers with application

specified prioritization and abort capability (each

buffer can contain up to 8 bytes of data)

• Up to 32 receive buffers (each buffer can contain

up to 8 bytes of data)

• Up to 16 full (standard/extended identifier)

acceptance filters

• Three full acceptance filter masks

• DeviceNet™ addressing support

• Programmable wake-up functionality with

integrated low-pass filter

• Programmable Loopback mode supports self-test

operation

• Signaling via interrupt capabilities for all CAN

receiver and transmitter error states

• Programmable clock source

• Programmable link to input capture module (IC2

for CAN1) for time-stamping and network

synchronization

• Low-power Sleep and Idle mode

The CAN bus module consists of a protocol engine and

message buffering/control. The CAN protocol engine

handles all functions for receiving and transmitting

messages on the CAN bus. Messages are transmitted

by first loading the appropriate data registers. Status

and errors can be checked by reading the appropriate

registers. Any message detected on the CAN bus is

checked for errors and then matched against filters to

see if it should be received and stored in one of the

receive registers.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 21. “Enhanced

Controller Area Network (ECAN™)”

(DS70185) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.2 Frame Types

The ECAN module transmits various types of frames

which include data messages, or remote transmission

requests initiated by the user, as other frames that are

automatically generated for control purposes. The

following frame types are supported:

• Standard Data Frame:

A standard data frame is generated by a node when

the node wishes to transmit data. It includes an 11-bit

Standard Identifier (SID), but not an 18-bit Extended

Identifier (EID).

• Extended Data Frame:

• An extended data frame is similar to a standard

data frame, but includes an extended identifier as

well.

• Remote Frame:

• It is possible for a destination node to request the

data from the source. For this purpose, the

destination node sends a remote frame with an

identifier that matches the identifier of the

required data frame. The appropriate data source

node sends a data frame as a response to this

remote request.

• Error Frame:

• An error frame is generated by any node that

detects a bus error. An error frame consists of two

fields: an error flag field and an error delimiter

field.

• Overload Frame:

• An overload frame can be generated by a node as

a result of two conditions. First, the node detects a

dominant bit during interframe space which is an

illegal condition. Second, due to internal condi-

tions, the node is not yet able to start reception of

the next message. A node can generate a maxi-

mum of 2 sequential overload frames to delay the

start of the next message.

• Interframe Space:

• Interframe space separates a proceeding frame

(of whatever type) from a following data or remote

frame.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 21-1: ECAN™ MODULE BLOCK DIAGRAM

Message Assembly

CAN Protocol

Engine

C1Tx

Buffer

C1Rx

RXF14 Filter

RXF13 Filter

RXF12 Filter

RXF11 Filter

RXF10 Filter

RXF9 Filter

RXF8 Filter

RXF7 Filter

RXF6 Filter

RXF5 Filter

RXF4 Filter

RXF3 Filter

RXF2 Filter

RXF1 Filter

RXF0 Filter

Transmit Byte

Sequencer

RXM1 Mask

RXM0 Mask

Control

Configuration

Logic

CPU

Bus

Interrupts

TRB0 TX/RX Buffer Control Register

DMA Controller

RXF15 Filter

RXM2 Mask

TRB7 TX/RX Buffer Control Register

TRB6 TX/RX Buffer Control Register

TRB5 TX/RX Buffer Control Register

TRB4 TX/RX Buffer Control Register

TRB3 TX/RX Buffer Control Register

TRB2 TX/RX Buffer Control Register

TRB1 TX/RX Buffer Control Register

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.3 Modes of Operation

The ECAN module can operate in one of several

operation modes selected by the user. These modes

include:

• Initialization mode

• Disable mode

• Normal Operation mode

• Listen Only mode

• Listen All Messages mode

• Loopback mode

Modes are requested by setting the REQOP<2:0> bits

(CiCTRL1<10:8>). Entry into a mode is Acknowledged

by monitoring the OPMODE<2:0> bits

(CiCTRL1<7:5>). The module does not change the

mode and the OPMODE bits until a change in mode is

acceptable, generally during bus Idle time, which is

defined as at least 11 consecutive recessive bits.

21.3.1 INITIALIZATION MODE

In the Initialization mode, the module does not transmit

or receive. The error counters are cleared and the

interrupt flags remain unchanged. The user application

has access to Configuration registers that are access

restricted in other modes. The module protects the user

from accidentally violating the CAN protocol through

programming errors. All registers which control the

configuration of the module can not be modified while

the module is on-line. The ECAN module is not allowed

to enter the Configuration mode while a transmission is

taking place. The Configuration mode serves as a lock

to protect the following registers:

• All Module Control registers

• Baud Rate and Interrupt Configuration registers

• Bus Timing registers

• Identifier Acceptance Filter registers

• Identifier Acceptance Mask registers

21.3.2 DISABLE MODE

In Disable mode, the module does not transmit or

receive. The module has the ability to set the WAKIF bit

due to bus activity, however, any pending interrupts

remains and the error counters retains their value.

If the REQOP<2:0> bits (CiCTRL1<10:8>) = 001, the

module enters the Module Disable mode. If the module is

active, the module waits for 11 recessive bits on the CAN

bus, detect that condition as an Idle bus, then accept the

module disable command. When the OPMODE<2:0>

bits (CiCTRL1<7:5>) = 001, that indicates whether the

module successfully went into Module Disable mode.

The I/O pins reverts to normal I/O function when the

module is in the Module Disable mode.

The module can be programmed to apply a low-pass

filter function to the CiRX input line while the module or

the CPU is in Sleep mode. The WAKFIL bit

(CiCFG2<14>) enables or disables the filter.

21.3.3 NORMAL OPERATION MODE

Normal Operation mode is selected when the

REQOP<2:0> = 000. In this mode, the module is

activated and the I/O pins assumes the CAN bus

functions. The module transmits and receive CAN bus

messages via the CiTX and CiRX pins.

21.3.4 LISTEN ONLY MODE

If the Listen Only mode is activated, the module on the

CAN bus is passive. The transmitter buffers revert to

the port I/O function. The receive pins remain inputs.

For the receiver, no error flags or Acknowledge signals

are sent. The error counters are deactivated in this

state. The Listen Only mode can be used for detecting

the baud rate on the CAN bus. To use this, it is

necessary that there are at least two further nodes that

communicate with each other.

21.3.5 LISTEN ALL MESSAGES MODE

The module can be set to ignore all errors and receive

any message. The Listen All Messages mode is

activated by setting the REQOP<2:0> = 111. In this

mode, the data which is in the message assembly

buffer, until the time an error occurred, is copied in the

receive buffer and can be read via the CPU interface.

21.3.6 LOOPBACK MODE

If the Loopback mode is activated, the module

connects the internal transmit signal to the internal

receive signal at the module boundary. The transmit

and receive pins revert to their port I/O function.

Note: Typically, if the ECAN module is allowed to

transmit in a particular mode of operation

and a transmission is requested

immediately after the ECAN module has

been placed in that mode of operation, the

module waits for 11 consecutive recessive

bits on the bus before starting

transmission. If the user switches to

Disable mode within this 11-bit period,

then this transmission is aborted and the

corresponding TXABT bit is set and

TXREQ bit is cleared.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.4 ECAN Resources

Many useful resources related to ECAN are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

21.4.1 KEY RESOURCES

•Section 21. “Enhanced Controller Area

Network (ECAN™)” (DS70185)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.5 ECAN Control Registers

U-0 U-0 R/W-0 R/W-0 r-0 R/W-1 R/W-0 R/W-0

—— CSIDL ABAT — REQOP<2:0>

bit 15 bit 8

R-1 R-0 R-0 U-0 R/W-0 U-0 U-0 R/W-0

OPMODE<2:0> —CANCAP ——WIN

bit 7 bit 0

Legend: r = Bit is Reserved

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 CSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12 ABAT: Abort All Pending Transmissions bit

1 = Signal all transmit buffers to abort transmission

0 = Module will clear this bit when all transmissions are aborted

bit 11 Reserved: Do not use

bit 10-8 REQOP<2:0>: Request Operation Mode bits

111 = Set Listen All Messages mode

110 = Reserved

101 = Reserved

100 = Set Configuration mode

011 = Set Listen Only Mode

010 = Set Loopback mode

001 = Set Disable mode

000 = Set Normal Operation mode

bit 7-5 OPMODE<2:0>: Operation Mode bits

111 = Module is in Listen All Messages mode

110 = Reserved

101 = Reserved

100 = Module is in Configuration mode

011 = Module is in Listen Only mode

010 = Module is in Loopback mode

001 = Module is in Disable mode

000 = Module is in Normal Operation mode

bit 4 Unimplemented: Read as ‘0’

bit 3 CANCAP: CAN Message Receive Timer Capture Event Enable bit

1 = Enable input capture based on CAN message receive

0 = Disable CAN capture

bit 2-1 Unimplemented: Read as ‘0’

bit 0 WIN: SFR Map Window Select bit

1 = Use filter window

0 = Use buffer window

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0

— — — DNCNT<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 Unimplemented: Read as ‘0’

bit 4-0 DNCNT<4:0>: DeviceNet™ Filter Bit Number bits

10010-11111 = Invalid selection

10001 = Compare up to data byte 3, bit 6 with EID<17>

•

00001 = Compare up to data byte 1, bit 7 with EID<0>

00000 = Do not compare data bytes

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R-0 R-0 R-0 R-0 R-0

— — — FILHIT<4:0>

bit 15 bit 8

U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0

—ICODE<6:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 FILHIT<4:0>: Filter Hit Number bits

10000-11111 = Reserved

01111 = Filter 15

•

00001 = Filter 1

00000 = Filter 0

bit 7 Unimplemented: Read as ‘0’

bit 6-0 ICODE<6:0>: Interrupt Flag Code bits

1000101-1111111 = Reserved

1000100 = FIFO almost full interrupt

1000011 = Receiver overflow interrupt

1000010 = Wake-up interrupt

1000001 = Error interrupt

1000000 = No interrupt

•

0010000-0111111 = Reserved

0001111 = RB15 buffer Interrupt

•

0001001 = RB9 buffer interrupt

0001000 = RB8 buffer interrupt

0000111 = TRB7 buffer interrupt

0000110 = TRB6 buffer interrupt

0000101 = TRB5 buffer interrupt

0000100 = TRB4 buffer interrupt

0000011 = TRB3 buffer interrupt

0000010 = TRB2 buffer interrupt

0000001 = TRB1 buffer interrupt

0000000 = TRB0 Buffer interrupt

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 U-0

DMABS<2:0> — — — — —

bit 15 bit 8

U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

— — — FSA<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 DMABS<2:0>: DMA Buffer Size bits

111 = Reserved

110 = 32 buffers in DMA RAM

101 = 24 buffers in DMA RAM

100 = 16 buffers in DMA RAM

011 = 12 buffers in DMA RAM

010 = 8 buffers in DMA RAM

001 = 6 buffers in DMA RAM

000 = 4 buffers in DMA RAM

bit 12-5 Unimplemented: Read as ‘0’

bit 4-0 FSA<4:0>: FIFO Area Starts with Buffer bits

11111 = Read buffer RB31

11110 = Read buffer RB30

•

00001 = TX/RX buffer TRB1

00000 = TX/RX buffer TRB0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0

—— FBP<5:0>

bit 15 bit 8

U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0

—— FNRB<5:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13-8 FBP<5:0>: FIFO Buffer Pointer bits

011111 = RB31 buffer

011110 = RB30 buffer

•

000001 = TRB1 buffer

000000 = TRB0 buffer

bit 7-6 Unimplemented: Read as ‘0’

bit 5-0 FNRB<5:0>: FIFO Next Read Buffer Pointer bits

011111 = RB31 buffer

011110 = RB30 buffer

•

000001 = TRB1 buffer

000000 = TRB0 buffer

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 R-0 R-0 R-0 R-0 R-0 R-0

—— TXBO TXBP RXBP TXWAR RXWAR EWARN

bit 15 bit 8

R/C-0 R/C-0 R/C-0 U-0 R/C-0 R/C-0 R/C-0 R/C-0

IVRIF WAKIF ERRIF — FIFOIF RBOVIF RBIF TBIF

bit 7 bit 0

Legend: C = Writable bit, but only ‘0’ can be written to clear the bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 TXBO: Transmitter in Error State Bus Off bit

1 = Transmitter is in Bus Off state

0 = Transmitter is not in Bus Off state

bit 12 TXBP: Transmitter in Error State Bus Passive bit

1 = Transmitter is in Bus Passive state

0 = Transmitter is not in Bus Passive state

bit 11 RXBP: Receiver in Error State Bus Passive bit

1 = Receiver is in Bus Passive state

0 = Receiver is not in Bus Passive state

bit 10 TXWAR: Transmitter in Error State Warning bit

1 = Transmitter is in Error Warning state

0 = Transmitter is not in Error Warning state

bit 9 RXWAR: Receiver in Error State Warning bit

1 = Receiver is in Error Warning state

0 = Receiver is not in Error Warning state

bit 8 EWARN: Transmitter or Receiver in Error State Warning bit

1 = Transmitter or Receiver is in Error State Warning state

0 = Transmitter or Receiver is not in Error State Warning state

bit 7 IVRIF: Invalid Message Received Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 6 WAKIF: Bus Wake-up Activity Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 5 ERRIF: Error Interrupt Flag bit (multiple sources in CiINTF<13:8> register)

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 4 Unimplemented: Read as ‘0’

bit 3 FIFOIF: FIFO Almost Full Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 2 RBOVIF: RX Buffer Overflow Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 1 RBIF: RX Buffer Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

bit 0 TBIF: TX Buffer Interrupt Flag bit

1 = Interrupt Request has occurred

0 = Interrupt Request has not occurred

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0

IVRIE WAKIE ERRIE — FIFOIE RBOVIE RBIE TBIE

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Unimplemented: Read as ‘0’

bit 7 IVRIE: Invalid Message Received Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 6 WAKIE: Bus Wake-up Activity Interrupt Flag bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 5 ERRIE: Error Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 4 Unimplemented: Read as ‘0’

bit 3 FIFOIE: FIFO Almost Full Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 2 RBOVIE: RX Buffer Overflow Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 1 RBIE: RX Buffer Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

bit 0 TBIE: TX Buffer Interrupt Enable bit

1 = Interrupt Request Enabled

0 = Interrupt Request not enabled

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

TERRCNT<7:0>

bit 15 bit 8

R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0

RERRCNT<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 TERRCNT<7:0>: Transmit Error Count bits

bit 7-0 RERRCNT<7:0>: Receive Error Count bits

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

SJW<1:0> BRP<5:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Unimplemented: Read as ‘0’

bit 7-6 SJW<1:0>: Synchronization Jump Width bits

11 = Length is 4 x TQ

10 = Length is 3 x TQ

01 = Length is 2 x TQ

00 = Length is 1 x TQ

bit 5-0 BRP<5:0>: Baud Rate Prescaler bits

11 1111 = TQ = 2 x 64 x 1/FCAN

•

00 0010 = TQ = 2 x 3 x 1/FCAN

00 0001 = TQ = 2 x 2 x 1/FCAN

00 0000 = TQ = 2 x 1 x 1/FCAN

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 R/W-x U-0 U-0 U-0 R/W-x R/W-x R/W-x

— WAKFIL — — — SEG2PH<2:0>

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

SEG2PHTS SAM SEG1PH<2:0> PRSEG<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 WAKFIL: Select CAN Bus Line Filter for Wake-up bit

1 = Use CAN bus line filter for wake-up

0 = CAN bus line filter is not used for wake-up

bit 13-11 Unimplemented: Read as ‘0’

bit 10-8 SEG2PH<2:0>: Phase Segment 2 bits

111 = Length is 8 x TQ

•

000 = Length is 1 x TQ

bit 7 SEG2PHTS: Phase Segment 2 Time Select bit

1 = Freely programmable

0 = Maximum of SEG1PH bits or Information Processing Time (IPT), whichever is greater

bit 6 SAM: Sample of the CAN Bus Line bit

1 = Bus line is sampled three times at the sample point

0 = Bus line is sampled once at the sample point

bit 5-3 SEG1PH<2:0>: Phase Segment 1 bits

111 = Length is 8 x TQ

•

000 = Length is 1 x TQ

bit 2-0 PRSEG<2:0>: Propagation Time Segment bits

111 = Length is 8 x TQ

•

000 = Length is 1 x TQ

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

FLTEN15 FLTEN14 FLTEN13 FLTEN12 FLTEN11 FLTEN10 FLTEN9 FLTEN8

bit 15 bit 8

R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1

FLTEN7 FLTEN6 FLTEN5 FLTEN4 FLTEN3 FLTEN2 FLTEN1 FLTEN0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 FLTENn: Enable Filter n to Accept Messages bits

1 = Enable Filter n

0 = Disable Filter n

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F3BP<3:0> F2BP<3:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F1BP<3:0> F0BP<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 F3BP<3:0>: RX Buffer mask for Filter 3

1111 = Filter hits received in RX FIFO buffer

1110 = Filter hits received in RX Buffer 14

•

0001 = Filter hits received in RX Buffer 1

0000 = Filter hits received in RX Buffer 0

bit 11-8 F2BP<3:0>: RX Buffer mask for Filter 2 (same values as bit 15-12)

bit 7-4 F1BP<3:0>: RX Buffer mask for Filter 1 (same values as bit 15-12)

bit 3-0 F0BP<3:0>: RX Buffer mask for Filter 0 (same values as bit 15-12)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F7BP<3:0> F6BP<3:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F5BP<3:0> F4BP<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 F7BP<3:0>: RX Buffer Mask for Filter 7

1111 = Filter hits received in RX FIFO buffer

1110 = Filter hits received in RX Buffer 14

•

0001 = Filter hits received in RX Buffer 1

0000 = Filter hits received in RX Buffer 0

bit 11-8 F6BP<3:0>: RX Buffer Mask for Filter 6 (same values as bit 15-12)

bit 7-4 F5BP<3:0>: RX Buffer Mask for Filter 5 (same values as bit 15-12)

bit 3-0 F4BP<3:0>: RX Buffer Mask for Filter 4 (same values as bit 15-12)

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F11BP<3:0> F10BP<3:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F9BP<3:0> F8BP<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 F11BP<3:0>: RX Buffer Mask for Filter 11

1111 = Filter hits received in RX FIFO buffer

1110 = Filter hits received in RX Buffer 14

•

0001 = Filter hits received in RX Buffer 1

0000 = Filter hits received in RX Buffer 0

bit 11-8 F10BP<3:0>: RX Buffer Mask for Filter 10 (same values as bit 15-12)

bit 7-4 F9BP<3:0>: RX Buffer Mask for Filter 9 (same values as bit 15-12)

bit 3-0 F8BP<3:0>: RX Buffer Mask for Filter 8 (same values as bit 15-12)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F15BP<3:0> F14BP<3:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F13BP<3:0> F12BP<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 F15BP<3:0>: RX Buffer Mask for Filter 15

1111 = Filter hits received in RX FIFO buffer

1110 = Filter hits received in RX Buffer 14

•

0001 = Filter hits received in RX Buffer 1

0000 = Filter hits received in RX Buffer 0

bit 11-8 F14BP<3:0>: RX Buffer Mask for Filter 14 (same values as bit 15-12)

bit 7-4 F13BP<3:0>: RX Buffer Mask for Filter 13 (same values as bit 15-12)

bit 3-0 F12BP<3:0>: RX Buffer Mask for Filter 12 (same values as bit 15-12)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

n (n = 0-15)

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3

bit 15 bit 8

R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x

SID2 SID1 SID0 —EXIDE —EID17EID16

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 SID<10:0>: Standard Identifier bits

1 = Message address bit SIDx must be ‘1’ to match filter

0 = Message address bit SIDx must be ‘0’ to match filter

bit 4 Unimplemented: Read as ‘0’

bit 3 EXIDE: Extended Identifier Enable bit

If MIDE = 1:

1 = Match only messages with extended identifier addresses

0 = Match only messages with standard identifier addresses

If MIDE = 0:

Ignore EXIDE bit.

bit 2 Unimplemented: Read as ‘0’

bit 1-0 EID<17:16>: Extended Identifier bits

1 = Message address bit EIDx must be ‘1’ to match filter

0 = Message address bit EIDx must be ‘0’ to match filter

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

n (n = 0-15)

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 EID<15:0>: Extended Identifier bits

1 = Message address bit EIDx must be ‘1’ to match filter

0 = Message address bit EIDx must be ‘0’ to match filter

ECAN™

FILTER 7-0 MASK SELECTION REGISTER

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F7MSK<1:0> F6MSK<1:0> F5MSK<1:0> F4MSK<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F3MSK<1:0> F2MSK<1:0> F1MSK<1:0> F0MSK<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 F7MSK<1:0>: Mask Source for Filter 7 bit

11 = No mask

10 = Acceptance Mask 2 registers contain mask

01 = Acceptance Mask 1 registers contain mask

00 = Acceptance Mask 0 registers contain mask

bit 13-12 F6MSK<1:0>: Mask Source for Filter 6 bit (same values as bit 15-14)

bit 11-10 F5MSK<1:0>: Mask Source for Filter 5 bit (same values as bit 15-14)

bit 9-8 F4MSK<1:0>: Mask Source for Filter 4 bit (same values as bit 15-14)

bit 7-6 F3MSK<1:0>: Mask Source for Filter 3 bit (same values as bit 15-14)

bit 5-4 F2MSK<1:0>: Mask Source for Filter 2 bit (same values as bit 15-14)

bit 3-2 F1MSK<1:0>: Mask Source for Filter 1 bit (same values as bit 15-14)

bit 1-0 F0MSK<1:0>: Mask Source for Filter 0 bit (same values as bit 15-14)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

ECAN™

FILTER 15-8 MASK SELECTION REGISTER

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F15MSK<1:0> F14MSK<1:0> F13MSK<1:0> F12MSK<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

F11MSK<1:0> F10MSK<1:0> F9MSK<1:0> F8MSK<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 F15MSK<1:0>: Mask Source for Filter 15 bit

11 = No mask

10 = Acceptance Mask 2 registers contain mask

01 = Acceptance Mask 1 registers contain mask

00 = Acceptance Mask 0 registers contain mask

bit 13-12 F14MSK<1:0>: Mask Source for Filter 14 bit (same values as bit 15-14)

bit 11-10 F13MSK<1:0>: Mask Source for Filter 13 bit (same values as bit 15-14)

bit 9-8 F12MSK<1:0>: Mask Source for Filter 12 bit (same values as bit 15-14)

bit 7-6 F11MSK<1:0>: Mask Source for Filter 11 bit (same values as bit 15-14)

bit 5-4 F10MSK<1:0>: Mask Source for Filter 10 bit (same values as bit 15-14)

bit 3-2 F9MSK<1:0>: Mask Source for Filter 9 bit (same values as bit 15-14)

bit 1-0 F8MSK<1:0>: Mask Source for Filter 8 bit (same values as bit 15-14)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

ECAN™

ACCEPTANCE FILTER MASK STANDARD IDENTIFIER

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3

bit 15 bit 8

R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x

SID2 SID1 SID0 —MIDE —EID17EID16

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-5 SID<10:0>: Standard Identifier bits

1 = Include bit SIDx in filter comparison

0 = Bit SIDx is don’t care in filter comparison

bit 4 Unimplemented: Read as ‘0’

bit 3 MIDE: Identifier Receive Mode bit

1 = Match only message types (standard or extended address) that correspond to EXIDE bit in filter

0 = Match either standard or extended address message if filters match

(i.e., if (Filter SID) = (Message SID) or if (Filter SID/EID) = (Message SID/EID))

bit 2 Unimplemented: Read as ‘0’

bit 1-0 EID<17:16>: Extended Identifier bits

1 = Include bit EIDx in filter comparison

0 = Bit EIDx is don’t care in filter comparison

ECAN™

ACCEPTANCE FILTER MASK EXTENDED IDENTIFIER

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID15 EID14 EID13 EID12 EID11 EID10 EID9 EID8

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 EID<15:0>: Extended Identifier bits

1 = Include bit EIDx in filter comparison

0 = Bit EIDx is don’t care in filter comparison

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXFUL15 RXFUL14 RXFUL13 RXFUL12 RXFUL11 RXFUL10 RXFUL9 RXFUL8

bit 15 bit 8

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXFUL7 RXFUL6 RXFUL5 RXFUL4 RXFUL3 RXFUL2 RXFUL1 RXFUL0

bit 7 bit 0

Legend: C = Writable bit, but only ‘0’ can be written to clear the bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 RXFUL<15:0>: Receive Buffer n Full bits

1 = Buffer is full (set by module)

0 = Buffer is empty

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXFUL31 RXFUL30 RXFUL29 RXFUL28 RXFUL27 RXFUL26 RXFUL25 RXFUL24

bit 15 bit 8

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXFUL23 RXFUL22 RXFUL21 RXFUL20 RXFUL19 RXFUL18 RXFUL17 RXFUL16

bit 7 bit 0

Legend: C = Writable bit, but only ‘0’ can be written to clear the bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 RXFUL<31:16>: Receive Buffer n Full bits

1 = Buffer is full (set by module)

0 = Buffer is empty

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXOVF15 RXOVF14 RXOVF13 RXOVF12 RXOVF11 RXOVF10 RXOVF9 RXOVF8

bit 15 bit 8

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXOVF7 RXOVF6 RXOVF5 RXOVF4 RXOVF3 RXOVF2 RXOVF1 RXOVF0

bit 7 bit 0

Legend: C = Writable bit, but only ‘0’ can be written to clear the bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 RXOVF<15:0>: Receive Buffer n Overflow bits

1 = Module attempted to write to a full buffer (set by module)

0 = No overflow condition

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXOVF31 RXOVF30 RXOVF29 RXOVF28 RXOVF27 RXOVF26 RXOVF25 RXOVF24

bit 15 bit 8

R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0 R/C-0

RXOVF23 RXOVF22 RXOVF21 RXOVF20 RXOVF19 RXOVF18 RXOVF17 RXOVF16

bit 7 bit 0

Legend: C = Writable bit, but only ‘0’ can be written to clear the bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 RXOVF<31:16>: Receive Buffer n Overflow bits

1 = Module attempted to write to a full buffer (set by module)

0 = No overflow condition

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

(m = 0,2,4,6; n = 1,3,5,7)

R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0

TXENn TXABTn TXLARBn TXERRn TXREQn RTRENn TXnPRI<1:0>

bit 15 bit 8

R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0

TXENm TXABTm(1) TXLARBm(1) TXERRm(1) TXREQm RTRENm TXmPRI<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 See Definition for Bits 7-0, Controls Buffer n

bit 7 TXENm: TX/RX Buffer Selection bit

1 = Buffer TRBn is a transmit buffer

0 = Buffer TRBn is a receive buffer

bit 6 TXABTm: Message Aborted bit(1)

1 = Message was aborted

0 = Message completed transmission successfully

bit 5 TXLARBm: Message Lost Arbitration bit(1)

1 = Message lost arbitration while being sent

0 = Message did not lose arbitration while being sent

bit 4 TXERRm: Error Detected During Transmission bit(1)

1 = A bus error occurred while the message was being sent

0 = A bus error did not occur while the message was being sent

bit 3 TXREQm: Message Send Request bit

1 = Requests that a message be sent. The bit automatically clears when the message is successfully

sent

0 = Clearing the bit to ‘0’ while set requests a message abort

bit 2 RTRENm: Auto-Remote Transmit Enable bit

1 = When a remote transmit is received, TXREQ will be set

0 = When a remote transmit is received, TXREQ will be unaffected

bit 1-0 TXmPRI<1:0>: Message Transmission Priority bits

11 = Highest message priority

10 = High intermediate message priority

01 = Low intermediate message priority

00 = Lowest message priority

Note 1: This bit is cleared when the TXREQ bit is set.

Note: The buffers, SID, EID, DLC, Data Field and Receive Status registers are located in DMA RAM.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

21.6 ECAN Message Buffers

ECAN Message Buffers are part of DMA RAM memory.

They are not ECAN special function registers. The user

application must directly write into the DMA RAM area

that is configured for ECAN Message Buffers. The

location and size of the buffer area is defined by the

user application.

BUFFER 21-1:

ECAN™

MESSAGE BUFFER WORD 0

U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x

— — — SID10 SID9 SID8 SID7 SID6

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

SID5 SID4 SID3 SID2 SID1 SID0 SRR IDE

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-2 SID<10:0>: Standard Identifier bits

bit 1 SRR: Substitute Remote Request bit

1 = Message will request remote transmission

0 = Normal message

bit 0 IDE: Extended Identifier bit

1 = Message will transmit extended identifier

0 = Message will transmit standard identifier

BUFFER 21-2:

ECAN™

MESSAGE BUFFER WORD 1

U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x

— — — —EID17EID16EID15EID14

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID13 EID12 EID11 EID10 EID9 EID8 EID7 EID6

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-12 Unimplemented: Read as ‘0’

bit 11-0 EID<17:6>: Extended Identifier bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

(

BUFFER 21-3:

ECAN™

MESSAGE BUFFER WORD 2

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

EID5 EID4 EID3 EID2 EID1 EID0 RTR RB1

bit 15 bit 8

U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x

— — — RB0 DLC3 DLC2 DLC1 DLC0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-10 EID<5:0>: Extended Identifier bits

bit 9 RTR: Remote Transmission Request bit

1 = Message will request remote transmission

0 = Normal message

bit 8 RB1: Reserved Bit 1

User must set this bit to ‘0’ per CAN protocol.

bit 7-5 Unimplemented: Read as ‘0’

bit 4 RB0: Reserved Bit 0

User must set this bit to ‘0’ per CAN protocol.

bit 3-0 DLC<3:0>: Data Length Code bits

BUFFER 21-4: ECAN

™

MESSAGE BUFFER WORD 3

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 1

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Byte 1<15:8>: ECAN™ Message byte 0

bit 7-0 Byte 0<7:0>: ECAN Message byte 1

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

BUFFER 21-5: ECAN

™

MESSAGE BUFFER WORD 4

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 3

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 2

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Byte 3<15:8>: ECAN™ Message byte 3

bit 7-0 Byte 2<7:0>: ECAN Message byte 2

BUFFER 21-6: ECAN

™

MESSAGE BUFFER WORD 5

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 5

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 4

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Byte 5<15:8>: ECAN™ Message byte 5

bit 7-0 Byte 4<7:0>: ECAN Message byte 4

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

BUFFER 21-7: ECAN

™

MESSAGE BUFFER WORD 6

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 7

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

Byte 6

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Byte 7<15:8>: ECAN™ Message byte 7

bit 7-0 Byte 6<7:0>: ECAN Message byte 6

BUFFER 21-8:

ECAN™

MESSAGE BUFFER WORD 7

U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x

— — — FILHIT<4:0>(1)

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12-8 FILHIT<4:0>: Filter Hit Code bits(1)

Encodes number of filter that resulted in writing this buffer.

bit 7-0 Unimplemented: Read as ‘0’

Note 1: Only written by module for receive buffers, unused for transmit buffers.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

22.0 10-BIT/12-BIT ANALOG-TO-

DIGITAL CONVERTER (ADC1)

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices have up

to nine ADC input channels.

The AD12B bit (AD1CON1<10>) allows each of the

ADC modules to be configured by the user as either a

10-bit, 4-sample and hold (S&H) ADC (default

configuration) or a 12-bit, 1-S&H ADC.

22.1 Key Features

The 10-bit ADC configuration has the following key

features:

• Successive Approximation (SAR) conversion

• Conversion speeds of up to 1.1 Msps

• Up to nine analog input pins

• External voltage reference input pins

• Simultaneous sampling of up to four analog input

pins

• Automatic Channel Scan mode

• Selectable conversion trigger source

• Selectable Buffer Fill modes

• Four result alignment options (signed/unsigned,

fractional/integer)

• Operation during CPU Sleep and Idle modes

The 12-bit ADC configuration supports all the above

features, except:

• In the 12-bit configuration, conversion speeds of

up to 500 ksps are supported

• There is only one sample/hold amplifier in the

12-bit configuration, so simultaneous sampling of

multiple channels is not supported.

Depending on the particular device pinout, the ADC

can have up to nine analog input pins, designated AN0

through AN8. In addition, there are two analog input

pins for external voltage reference connections. These

voltage reference inputs can be shared with other

analog input pins. The actual number of analog input

pins and external voltage reference input configuration

depends on the specific device.

Block diagrams of the ADC module are shown in

Figure 22-1 and Figure 22-2.

22.2 ADC Initialization

The following configuration steps should be performed.

1. Configure the ADC module:

a) Select port pins as analog inputs

(AD1PCFGH<15:0> or AD1PCFGL<15:0>)

b) Select voltage reference source to match

expected range on analog inputs

(AD1CON2<15:13>)

c) Select the analog conversion clock to

match desired data rate with processor

clock (AD1CON3<7:0>)

d) Determine how many S/H channels is used

(AD1CON2<9:8> and AD1PCFGH<15:0>

or AD1PCFGL<15:0>)

e) Select the appropriate sample/conversion

sequence (AD1CON1<7:5> and

AD1CON3<12:8>)

f) Select how conversion results are

presented in the buffer (AD1CON1<9:8>)

g) Turn on ADC module (AD1CON1<15>)

2. Configure ADC interrupt (if required):

a) Clear the AD1IF bit

b) Select ADC interrupt priority

22.3 ADC and DMA

If more than one conversion result needs to be buffered

before triggering an interrupt, DMA data transfers can

be used. ADC1 can trigger a DMA data transfer. If

ADC1 is selected as the DMA IRQ source, a DMA

transfer occurs when the AD1IF bit gets set as a result

of an ADC1 sample conversion sequence.

The SMPI<3:0> bits (AD1CON2<5:2>) are used to

select how often the DMA RAM buffer pointer is

incremented.

The ADDMABM bit (AD1CON1<12>) determines how

the conversion results are filled in the DMA RAM buffer

area being used for ADC. If this bit is set, DMA buffers

are written in the order of conversion. The module

provides an address to the DMA channel that is the

same as the address used for the non-DMA

stand-alone buffer. If the ADDMABM bit is cleared, then

DMA buffers are written in Scatter/Gather mode. The

module provides a scatter/gather address to the DMA

channel, based on the index of the analog input and the

size of the DMA buffer.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 16. “Analog-to-

Digital Converter (ADC)” (DS70183) of

the “dsPIC33F/PIC24H Family

Reference Manual”, which is available

from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: The ADC module needs to be disabled

before modifying the AD12B bit.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 22-1: ADC MODULE BLOCK DIAGRAM FOR dsPIC33FJ32MC304,

dsPIC33FJ64MC204/804 AND dsPIC33FJ128MC204/804 DEVICES

SAR ADC

S/H0

S/H1

ADC1BUF0

AN0

AN8

AN1

VREFL

CH0SB<4:0>

CH0NA CH0NB

AN0

AN3

CH123SA

VREFL

CH123SB

CH123NA CH123NB

AN6

S/H2

AN1

AN4

CH123SA

VREFL

CH123SB

CH123NA CH123NB

AN7

S/H3

AN2

AN5

CH123SA

VREFL

CH123SB

CH123NA CH123NB

AN8

CH1(2)

CH0

CH2(2)

CH3(2)

CH0SA<4:0>

CHANNEL

SCAN

CSCNA

Alternate

Note 1: VREF+, VREF- inputs can be multiplexed with other analog inputs.

2: Channels 1, 2 and 3 are not applicable for the 12-bit mode of operation.

Input Selection

VREFH VREFL

AVDD AVSS

VREF-(1)

VREF+(1)

VCFG<2:0>

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 22-2: ADC1 MODULE BLOCK DIAGRAM FOR dsPIC33FJ32MC302,

dsPIC33FJ64MC202/802 AND dsPIC33FJ128MC202/802 DEVICES

SAR ADC

S/H0

S/H1

AN0

AN5

AN1

VREFL

CH0SB<4:0>

CH0NA CH0NB

AN0

AN3

CH123SA

VREFL

CH123SB

CH123NA CH123NB

S/H2

AN1

AN4

CH123SA

VREFL

CH123SB

CH123NA CH123NB

S/H3

AN2

AN5

CH123SA

VREFL

CH123SB

CH123NA CH123NB

CH1(2)

CH0

CH2(2)

CH3(2)

CH0SA<4:0>

CHANNEL

SCAN

CSCNA

Alternate

Note 1: VREF+, VREF- inputs can be multiplexed with other analog inputs.

2: Channels 1, 2 and 3 are not applicable for the 12-bit mode of operation.

Input Selection

VREFH VREFL

ADC1BUF0

AVDD AVSS

VREF-(1)

VREF+(1)

VCFG<2:0>

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 22-3: ADC CONVERSION CLOCK PERIOD BLOCK DIAGRAM

ADC Internal

RC Clock(2)

TOSC(1) X2

ADC Conversion

Clock Multiplier

1, 2, 3, 4, 5,..., 64

AD1CON3<15>

TCY

TAD

AD1CON3<5:0>

Note 1: Refer to Figure 9-2 for the derivation of Fosc when the PLL is enabled. If the PLL is not used, Fosc is equal to

the clock source frequency. Tosc = 1/Fosc.

2: See the ADC electrical characteristics for the exact RC clock value.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

22.4 ADC Helpful Tips

1. The SMPI<3:0> (AD1CON2<5:2>) control bits:

a) Determine when the ADC interrupt flag is

set and an interrupt is generated if enabled.

b) When the CSCNA bit (AD1CON2<10>) is

set to ‘1’, determines when the ADC analog

scan channel list defined in the AD1CSSL/

AD1CSSH registers starts over from the

beginning.

c) On devices without a DMA peripheral,

determines when ADC result buffer pointer

to ADC1BUF0-ADC1BUFF, gets reset back

to the beginning at ADC1BUF0.

2. On devices without a DMA module, the ADC has

16 result buffers. ADC conversion results are

stored sequentially in ADC1BUF0-ADC1BUFF

regardless of which analog inputs are being

used subject to the SMPI<3:0> bits

(AD1CON2<5:2>) and the condition described

in 1c above. There is no relationship between

the ANx input being measured and which ADC

buffer (ADC1BUF0-ADC1BUFF) that the

conversion results will be placed in.

3. On devices with a DMA module, the ADC mod-

ule has only 1 ADC result buffer, (i.e.,

ADC1BUF0), per ADC peripheral and the ADC

conversion result must be read either by the

CPU or DMA controller before the next ADC

conversion is complete to avoid overwriting the

previous value.

4. The DONE bit (AD1CON1<0>) is only cleared at

the start of each conversion and is set at the

completion of the conversion, but remains set

indefinitely even through the next sample phase

until the next conversion begins. If application

code is monitoring the DONE bit in any kind of

software loop, the user must consider this

behavior because the CPU code execution is

faster than the ADC. As a result, in manual sam-

ple mode, particularly where the users code is

setting the SAMP bit (AD1CON1<1>), the

DONE bit should also be cleared by the user

application just before setting the SAMP bit.

5. On devices with two ADC modules, the

ADCxPCFG registers for both ADC modules

must be set to a logic ‘1’ to configure a target

I/O pin as a digital I/O pin. Failure to do so

means that any alternate digital input function

will always see only a logic ‘0’ as the digital

input buffer is held in Disable mode.

22.5 ADC Resources

Many useful resources related to ADC are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

22.5.1 KEY RESOURCES

•Section 16. “Analog-to-Digital Converter

(ADC)” (DS70183)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

22.6 ADC Control Registers

R/W-0 U-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0

ADON —ADSIDLADDMABM— AD12B FORM<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0

HC, HS

R/C-0

HC, HS

SSRC<2:0> — SIMSAM ASAM SAMP DONE

bit 7 bit 0

Legend: HC = Cleared by hardware HS = Set by hardware

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ADON: ADC Operating Mode bit

1 = ADC module is operating

0 = ADC is off

bit 14 Unimplemented: Read as ‘0’

bit 13 ADSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12 ADDMABM: DMA Buffer Build Mode bit

1 = DMA buffers are written in the order of conversion. The module provides an address to the DMA

channel that is the same as the address used for the non-DMA stand-alone buffer

0 = DMA buffers are written in Scatter/Gather mode. The module provides a scatter/gather address

to the DMA channel, based on the index of the analog input and the size of the DMA buffer

bit 11 Unimplemented: Read as ‘0’

bit 10 AD12B: 10-bit or 12-bit Operation Mode bit

1 = 12-bit, 1-channel ADC operation

0 = 10-bit, 4-channel ADC operation

bit 9-8 FORM<1:0>: Data Output Format bits

For 10-bit operation:

11 = Signed fractional (DOUT = sddd dddd dd00 0000, where s =.NOT.d<9>)

10 = Fractional (DOUT = dddd dddd dd00 0000)

01 = Signed integer (DOUT = ssss sssd dddd dddd, where s = .NOT.d<9>)

00 = Integer (DOUT = 0000 00dd dddd dddd)

For 12-bit operation:

11 = Signed fractional (DOUT = sddd dddd dddd 0000, where s = .NOT.d<11>)

10 = Fractional (DOUT = dddd dddd dddd 0000)

01 = Signed Integer (DOUT = ssss sddd dddd dddd, where s = .NOT.d<11>)

00 = Integer (DOUT = 0000 dddd dddd dddd)

bit 7-5 SSRC<2:0>: Sample Clock Source Select bits

111 = Internal counter ends sampling and starts conversion (auto-convert)

110 = Reserved

101 = Motor Control PWM2 interval ends sampling and starts conversion

100 = GP timer (Timer5 for ADC1) compare ends sampling and starts conversion

011 = Motor Control PWM1 interval ends sampling and starts conversion

010 = GP timer (Timer3 for ADC1) compare ends sampling and starts conversion

001 = Active transition on INT0 pin ends sampling and starts conversion

000 = Clearing sample bit ends sampling and starts conversion

bit 4 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 3 SIMSAM: Simultaneous Sample Select bit (only applicable when CHPS<1:0> = 01 or 1x)

When AD12B = 1, SIMSAM is: U-0, Unimplemented, Read as ‘0’

1 = Samples CH0, CH1, CH2, CH3 simultaneously (when CHPS<1:0> = 1x); or

Samples CH0 and CH1 simultaneously (when CHPS<1:0> = 01)

0 = Samples multiple channels individually in sequence

bit 2 ASAM: ADC Sample Auto-Start bit

1 = Sampling begins immediately after last conversion. SAMP bit is auto-set

0 = Sampling begins when SAMP bit is set

bit 1 SAMP: ADC Sample Enable bit

1 = ADC sample/hold amplifiers are sampling

0 = ADC sample/hold amplifiers are holding

If ASAM = 0, software can write ‘1’ to begin sampling. Automatically set by hardware if ASAM = 1.

If SSRC = 000, software can write ‘0’ to end sampling and start conversion. If SSRC ≠ 000,

automatically cleared by hardware to end sampling and start conversion.

bit 0 DONE: ADC Conversion Status bit

1 = ADC conversion cycle is completed

0 = ADC conversion not started or in progress

Automatically set by hardware when ADC conversion is complete. Software can write ‘0’ to clear

DONE status (software not allowed to write ‘1’). Clearing this bit does NOT affect any operation in

progress. Automatically cleared by hardware at start of a new conversion.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0

VCFG<2:0> —— CSCNA CHPS<1:0>

bit 15 bit 8

R-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

BUFS — SMPI<3:0> BUFM ALTS

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 VCFG<2:0>: Converter Voltage Reference Configuration bits

bit 12-11 Unimplemented: Read as ‘0’

bit 10 CSCNA: Scan Input Selections for CH0+ during Sample A bit

1 = Scan inputs

0 = Do not scan inputs

bit 9-8 CHPS<1:0>: Selects Channels Utilized bits

When AD12B = 1, CHPS<1:0> is: U-0, Unimplemented, Read as ‘0’

1x = Converts CH0, CH1, CH2 and CH3

01 = Converts CH0 and CH1

00 = Converts CH0

bit 7 BUFS: Buffer Fill Status bit (only valid when BUFM = 1)

1 = ADC is currently filling buffer 0x8-0xF, user should access data in 0x0-0x7

0 = ADC is currently filling buffer 0x0-0x7, user should access data in 0x8-0xF

bit 6 Unimplemented: Read as ‘0’

bit 5-2 SMPI<3:0>: Selects Increment Rate for DMA Addresses bits or number of sample/conversion

operations per interrupt

1111 = Increments the DMA address or generates interrupt after completion of every 16th sample/

conversion operation

1110 = Increments the DMA address or generates interrupt after completion of every 15th sample/

conversion operation

•

0001 = Increments the DMA address after completion of every 2nd sample/conversion operation

0000 = Increments the DMA address after completion of every sample/conversion operation

bit 1 BUFM: Buffer Fill Mode Select bit

1 = Starts buffer filling at address 0x0 on first interrupt and 0x8 on next interrupt

0 = Always starts filling buffer at address 0x0

bit 0 ALTS: Alternate Input Sample Mode Select bit

1 = Uses channel input selects for Sample A on first sample and Sample B on next sample

0 = Always uses channel input selects for Sample A

ADREF+ ADREF-

000 AVDD AVSS

001 External VREF+AVSS

010 AVDD External VREF-

011 External VREF+ External VREF-

1xx AVDD Avss

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ADRC —— SAMC<4:0>(1)

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ADCS<7:0>(2)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ADRC: ADC Conversion Clock Source bit

1 = ADC internal RC clock

0 = Clock derived from system clock

bit 14-13 Unimplemented: Read as ‘0’

bit 12-8 SAMC<4:0>: Auto Sample Time bits(1)

11111 = 31 TAD

•

00001 = 1 TAD

00000 = 0 TAD

bit 7-0 ADCS<7:0>: ADC Conversion Clock Select bits(2)

11111111 = Reserved

•

01000000 = Reserved

00111111 = TCY · (ADCS<7:0> + 1) = 64 · TCY = TAD

•

00000010 = TCY · (ADCS<7:0> + 1) = 3 · TCY = TAD

00000001 = TCY · (ADCS<7:0> + 1) = 2 · TCY = TAD

00000000 = TCY · (ADCS<7:0> + 1) = 1 · TCY = TAD

Note 1: These bits are only used if AD1CON1<7:5> (SSRC<2:0>) = 111.

2: This bit is not used if AD1CON3<15> (ADRC) = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — DMABL<2:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-3 Unimplemented: Read as ‘0’

bit 2-0 DMABL<2:0>: Selects Number of DMA Buffer Locations per Analog Input bits

111 = Allocates 128 words of buffer to each analog input

110 = Allocates 64 words of buffer to each analog input

101 = Allocates 32 words of buffer to each analog input

100 = Allocates 16 words of buffer to each analog input

011 = Allocates 8 words of buffer to each analog input

010 = Allocates 4 words of buffer to each analog input

001 = Allocates 2 words of buffer to each analog input

000 = Allocates 1 word of buffer to each analog input

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — CH123NB<1:0> CH123SB

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

— — — — — CH123NA<1:0> CH123SA

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-9 CH123NB<1:0>: Channel 1, 2, 3 Negative Input Select for Sample B bits

dsPIC33FJ32MC302, dsPIC33FJ64MC202/802 and dsPIC33FJ128MC202/802 devices only:

If AD12B = 1:

11 = Reserved

10 = Reserved

01 = Reserved

00 = Reserved

If AD12B = 0:

11 = Reserved

10 = Reserved

01 = CH1, CH2, CH3 negative input is VREF-

00 = CH1, CH2, CH3 negative input is VREF-

dsPIC33FJ32MC304, dsPIC33FJ64MC204/804 and dsPIC33FJ128MC204/804 devices only:

If AD12B = 1:

11 = Reserved

10 = Reserved

01 = Reserved

00 = Reserved

If AD12B = 0:

11 = Reserved

10 = CH1 negative input is AN6, CH2 negative input is AN7, CH3 negative input is AN8

01 = CH1, CH2, CH3 negative input is VREF-

00 = CH1, CH2, CH3 negative input is VREF-

bit 8 CH123SB: Channel 1, 2, 3 Positive Input Select for Sample B bit

If AD12B = 1:

1 = Reserved

0 = Reserved

If AD12B = 0:

1 = CH1 positive input is AN3, CH2 positive input is AN4, CH3 positive input is AN5

0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2

bit 7-3 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2-1 CH123NA<1:0>: Channel 1, 2, 3 Negative Input Select for Sample A bits

dsPIC33FJ32MC302, dsPIC33FJ64MC202/802 and dsPIC33FJ128MC202/802 devices only:

If AD12B = 1:

11 = Reserved

10 = Reserved

01 = Reserved

00 = Reserved

If AD12B = 0:

11 = Reserved

10 = Reserved

01 = CH1, CH2, CH3 negative input is VREF-

00 = CH1, CH2, CH3 negative input is VREF-

dsPIC33FJ32MC304, dsPIC33FJ64MC204/804 and dsPIC33FJ128MC204/804 devices only:

If AD12B = 1:

11 = Reserved

10 = Reserved

01 = Reserved

00 = Reserved

If AD12B = 0:

11 = Reserved

10 = CH1 negative input is AN6, CH2 negative input is AN7, CH3 negative input is AN8

01 = CH1, CH2, CH3 negative input is VREF-

00 = CH1, CH2, CH3 negative input is VREF-

bit 0 CH123SA: Channel 1, 2, 3 Positive Input Select for Sample A bit

If AD12B = 1:

1 = Reserved

0 = Reserved

If AD12B = 0:

1 = CH1 positive input is AN3, CH2 positive input is AN4, CH3 positive input is AN5

0 = CH1 positive input is AN0, CH2 positive input is AN1, CH3 positive input is AN2

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CH0NB —— CH0SB<4:0>

bit 15 bit 8

R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CH0NA —— CH0SA<4:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 CH0NB: Channel 0 Negative Input Select for Sample B bit

1 = Channel 0 negative input is AN1

0 = Channel 0 negative input is VREF-

bit 14-13 Unimplemented: Read as ‘0’

bit 12-8 CH0SB<4:0>: Channel 0 Positive Input Select for Sample B bits

dsPIC33FJ32MC304, dsPIC33FJ64MC204/804 and dsPIC33FJ128MC204/804 devices only:

01000 = Channel 0 positive input is AN8

•

00010 = Channel 0 positive input is AN2

00001 = Channel 0 positive input is AN1

00000 = Channel 0 positive input is AN0

dsPIC33FJ32MC302, dsPIC33FJ64MC202/802 and dsPIC33FJ128MC202/802 devices only:

00101 = Channel 0 positive input is AN5

•

00010 = Channel 0 positive input is AN2

00001 = Channel 0 positive input is AN1

00000 = Channel 0 positive input is AN0.

bit 7 CH0NA: Channel 0 Negative Input Select for Sample A bit

1 = Channel 0 negative input is AN1

0 = Channel 0 negative input is VREF-

bit 6-5 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 4-0 CH0SA<4:0>: Channel 0 Positive Input Select for Sample A bits

dsPIC33FJ32MC304, dsPIC33FJ64MC204/804 and dsPIC33FJ128MC204/804 devices only:

01000 = Channel 0 positive input is AN8

•

00010 = Channel 0 positive input is AN2

00001 = Channel 0 positive input is AN1

00000 = Channel 0 positive input is AN0

dsPIC33FJ32MC302, dsPIC33FJ64MC202/802 and dsPIC33FJ128MC202/802 devices only:

00101 = Channel 0 positive input is AN5

•

00010 = Channel 0 positive input is AN2

00001 = Channel 0 positive input is AN1

00000 = Channel 0 positive input is AN0

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0

— — — — — — — CSS8

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CSS7 CSS6 CSS5 CSS4 CSS3 CSS2 CSS1 CSS0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-9 Unimplemented: Read as ‘0’

bit 8-0 CSS<8:0>: ADC Input Scan Selection bits

1 = Select ANx for input scan

0 = Skip ANx for input scan

Note 1: On devices without nine analog inputs, all AD1CSSL bits can be selected by user application. However,

inputs selected for scan without a corresponding input on device converts VREFL.

2: CSSx = ANx, where x = 0 through 8.

U-0 U-0 U-0 U-0 U-0 U-0 U-0 R/W-0

— — — — — — —PCFG8

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PCFG7 PCFG6 PCFG5 PCFG4 PCFG3 PCFG2 PCFG1 PCFG0

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-9 Unimplemented: Read as ‘0’

bit 8-0 PCFG<8:0>: ADC Port Configuration Control bits

1 = Port pin in Digital mode, port read input enabled, ADC input multiplexer connected to AVSS

0 = Port pin in Analog mode, port read input disabled, ADC samples pin voltage

Note 1: On devices without nine analog inputs, all PCFG bits are R/W by user. However, PCFG bits are ignored on

ports without a corresponding input on device.

2: PCFGx = ANx, where x = 0 through 8.

3: PCFGx bits have no effect if ADC module is disabled by setting the ADxMD bit in the PMDx register. In this

case, all port pins are multiplexed with ANx will be in Digital mode.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

23.0 AUDIO DIGITAL-TO-ANALOG

CONVERTER (DAC)

The Audio Digital-to-Analog Converter (DAC) module

is a 16-bit Delta-Sigma signal converter designed for

audio applications. It has two output channels, left and

right to support stereo applications. Each DAC output

channel provides three voltage outputs, positive DAC

output, negative DAC output, and the midpoint voltage

output for the dsPIC33FJ64MC804 and

dsPIC33FJ128MC804 devices.

23.1 KEY FEATURES

• 16-bit resolution (14-bit accuracy)

• Second-Order Digital Delta-Sigma Modulator

• 256 X Over-Sampling Ratio

• 128-Tap FIR Current-Steering Analog

Reconstruction Filter

• 100 KSPS Maximum Sampling Rate

• User controllable Sample Clock

• Input Frequency 45 kHz max

• Differential Analog Outputs

• Signal-To-Noise: 90 dB

• 4-deep input Buffer

• 16-bit Processor I/O, and DMA interfaces

23.2 DAC Module Operation

The functional block diagram of the Audio DAC module

is shown in Figure 23-1. The Audio DAC module

provides a 4-deep data input FIFO buffer for each

output channel. If the DMA module and/or the

processor cannot provide output data in a timely

manner, and the FIFO becomes empty, the DAC

accepts data from the DAC Default Data register

(DACDFLT). This safety feature is useful for industrial

control applications where the DAC output controls an

important processor or machinery. The DACDFLT

Often the safe output value is either the midpoint value

(0x8000) or a zero value (0x0000).

The digital interpolator up-samples the input signals,

where the over-sampling ratio is 256x which creates

data points between the user supplied data points. The

interpolator also includes processing by digital filters to

provide noise shaping to move the converter noise

above 20 kHz (upper limit of the pass band). The output

of the interpolator drives the Sigma-Delta modulator.

The serial data bit stream from the Sigma-Delta

modulator is processed by the reconstruction filter. The

differential outputs of the reconstruction filter are

amplified by Op Amps to provide the required

peak-to-peak voltage swing.

23.3 DAC Output Format

The DAC output data stream can be in a two’s

complement signed number format or as an unsigned

number format.

The Audio DAC module features the ability to accept

the 16-bit input data in a two’s complement signed

number format or as an unsigned number format.

The data formatting is controlled by the Data Format

Control bit (FORM<8>) in the DAC1CON register.

The supported formats are:

•1 = Signed (two’s complement)

•0 = Unsigned

If the FORM bit is configured for Unsigned data the

user input data yields the following behavior:

• 0xFFFF = most positive output voltage

• 0x8000 = mid point output voltage

• 0x7FFF = a value just below the midpoint

• 0x0000 = minimum output voltage

If the FORM bit is configured for signed data the user

input data yields the following behavior:

• 0x7FFF = most positive output voltage

• 0x0000 = mid point output voltage

• 0xFFFF = value just below the midpoint

• 0x8000 = minimum output voltage

The Audio DAC provides an analog output proportional

to the digital input value. The maximum 100,000

samples per second (100 ksps) update rate provides

good quality audio reproduction.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 33. “Audio

Digital-to-Analog Converter (DAC)”

(DS70211) of the dsPIC33F/PIC24H

Family Reference Manual, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: The DAC module is designed

specifically for audio applications and is

not recommended for control type

applications.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

23.4 DAC CLOCK

The DAC clock signal clocks the internal logic of the

Audio DAC module. The data sample rate of the Audio

DAC is an integer division of the rate of the DAC clock.

The DAC clock is generated via a clock divider circuit

that accepts an auxiliary clock from the auxiliary

oscillator. The divisor ratio is programmed by clock

divider bits (DACFDIV<6:0>) in the DAC Control

not exceed 25.6 MHz. If lower sample rates are to be

used, then the DAC filter clock frequency may be

reduced to reduce power consumption. The DAC clock

frequency is 256 times the sampling frequency.

FIGURE 23-1: BLOCK DIAGRAM OF AUDIO DIGITAL-TO-ANALOG CONVERTER (DAC)

FIGURE 23-2: AUDIO DAC OUTPUT FOR RAMP INPUT (UNSIGNED)

DAC1RDAT

DAC1LDAT

D/A

CONTROL CLK DIV DACDFLT

Amp

16-bit Data Bus

Amp

ACLK

Note 1: If DAC1RDAT and DAC1LDAT are empty, data will be taken from the DACDFLT register.

Note 1

DAC1LM

DAC1LP

DAC1LN

DAC1RM

DAC1RP

DAC1RN

Right Channel

Left Channel

DACFDIV<6:0>

0x0000

0xFFFF

DAC Input

Count (DAC1RDAT)

VDACM

Positive DAC

Output (DAC1RP)

Negative DAC

Output (DAC1RN)

VDACH

VDACL

VDACH

Note: VOD+ = VDACH - VDACL, VOD- = VDACL - VDACH; refer to Audio DAC Module Specifications, Table 31-48, for typical values.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

23.5 DAC Resources

Many useful resources related to DAC are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

23.5.1 KEY RESOURCES

•Section 33. “Audio Digital-to-Analog Converter

(DAC)” (DS70211)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwprod-

ucts/Devices.aspx?dDoc-

Name=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

23.6 DAC Control Registers

R/W-0 U-0 R/W-0 R/W-0 U-0 U-0 U-0 R/W-0

DACEN — DACSIDL AMPON — — —FORM

bit 15 bit 8

U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-1 R/W-0 R/W-1

—DACFDIV<6:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 DACEN: DAC1 Enable bit

1 = Enables module

0 = Disables module

bit 14 Unimplemented: Read as ‘0’

bit 13 DACSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12 AMPON: Enable Analog Output Amplifier in Sleep Mode/Stop-in Idle Mode bit

1 = Analog Output Amplifier is enabled during Sleep Mode/Stop-in Idle mode

0 = Analog Output Amplifier is disabled during Sleep Mode/Stop-in Idle mode

bit 11-9 Unimplemented: Read as ‘0’

bit 8 FORM: Data Format Select bit

1 = Signed integer

0 = Unsigned integer

bit 7 Unimplemented: Read as ‘0’

bit 6-0 DACFDIV<6:0>: DAC Clock Divider bits

1111111 = Divide input clock by 128

•

0000101 = Divide input clock by 6 (default)

•

0000010 = Divide input clock by 3

0000001 = Divide input clock by 2

0000000 = Divide input clock by 1 (no divide)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R-0 R-0

LOEN —LMVOEN—— LITYPE LFULL LEMPTY

bit 15 bit 8

R/W-0 U-0 R/W-0 U-0 U-0 R/W-0 R-0 R-0

ROEN —RMVOEN—— RITYPE RFULL REMPTY

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 LOEN: Left Channel DAC Output Enable bit

1 = Positive and negative DAC outputs are enabled

0 = DAC outputs are disabled

bit 14 Unimplemented: Read as ‘0’

bit 13 LMVOEN: Left Channel Midpoint DAC Output Voltage Enable bit

1 = Midpoint DAC output is enabled

0 = Midpoint output is disabled

bit 12-11 Unimplemented: Read as ‘0’

bit 10 LITYPE: Left Channel Type of Interrupt bit

1 = Interrupt if FIFO is EMPTY

0 = Interrupt if FIFO is NOT FULL

bit 9 LFULL: Status, Left Channel Data Input FIFO is FULL bit

1 = FIFO is Full

0 = FIFO is not Full

bit 8 LEMPTY: Status, Left Channel Data Input FIFO is EMPTY bit

1 = FIFO is Empty

0 = FIFO is not Empty

bit 7 ROEN: Right Channel DAC Output Enable bit

1 = Positive and negative DAC outputs are enabled

0 = DAC outputs are disabled

bit 6 Unimplemented: Read as ‘0’

bit 5 RMVOEN: Right Channel Midpoint DAC Output Voltage Enable bit

1 = Midpoint DAC output is enabled

0 = Midpoint output is disabled

bit 4-3 Unimplemented: Read as ‘0’

bit 2 RITYPE: Right Channel Type of Interrupt bit

1 = Interrupt if FIFO is EMPTY

0 = Interrupt if FIFO is NOT FULL

bit 1 RFULL: Status, Right Channel Data Input FIFO is FULL bit

1 = FIFO is Full

0 = FIFO is not Full

bit 0 REMPTY: Status, Right Channel Data Input FIFO is EMPTY bit

1 = FIFO is Empty

0 = FIFO is not Empty

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1DFLT<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1DFLT<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 DAC1DFLT<15:0>: DAC Default Value bits

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1LDAT<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1LDAT<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 DAC1LDAT<15:0>: Left Channel Data Port bits

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1RDAT<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

DAC1RDAT<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-0 DAC1RDAT<15:0>: Right Channel Data Port bits

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

24.0 COMPARATOR MODULE The Comparator module provides a set of dual input

comparators. The inputs to the comparator can be

configured to use any one of the four pin inputs

(C1IN+, C1IN-, C2IN+ and C2IN-) as well as the

Comparator Voltage Reference Input (CVREF).

FIGURE 24-1: COMPARATOR I/O OPERATING MODES

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 34.

“Comparator” (DS70212) of the

“dsPIC33F/PIC24H Family Reference

Manual”, which is available from the

Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Note: This peripheral contains output functions

that may need to be configured by the

peripheral pin select feature. For more

information, see Section 11.6

“Peripheral Pin Select”.

C2IN- VIN-

VIN+

C2IN+

CVREF

C2IN+

C2OUT(1)

CMCON<7>

C1IN- VIN-

VIN+

C1IN+

CVREF

C1IN+

C1OUT(1)

CMCON<6>

C1NEG

C1POS

C2NEG

C2POS

C1INV

C2INV

C1OUTEN

C2OUTEN

C1EN

C2EN

Note 1: This peripheral’s outputs must be assigned to an available RPn pin before use. Refer to

Section 11.6 “Peripheral Pin Select” for more information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

24.1 Comparator Resources

Many useful resources related to Comparators are

provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

24.1.1 KEY RESOURCES

•Section 34. “Comparators” (DS70212)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwprod-

ucts/Devices.aspx?dDoc-

Name=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

24.2 Comparator Control Register

R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CMIDL — C2EVT C1EVT C2EN C1EN C2OUTEN(1) C1OUTEN(2)

bit 15 bit 8

R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

C2OUT C1OUT C2INV C1INV C2NEG C2POS C1NEG C1POS

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 CMIDL: Stop in Idle Mode bit

1 = When device enters Idle mode, module does not generate interrupts. Module is still enabled

0 = Continue normal module operation in Idle mode

bit 14 Unimplemented: Read as ‘0’

bit 13 C2EVT: Comparator 2 Event bit

1 = Comparator output changed states

0 = Comparator output did not change states

bit 12 C1EVT: Comparator 1 Event bit

1 = Comparator output changed states

0 = Comparator output did not change states

bit 11 C2EN: Comparator 2 Enable bit

1 = Comparator is enabled

0 = Comparator is disabled

bit 10 C1EN: Comparator 1 Enable bit

1 = Comparator is enabled

0 = Comparator is disabled

bit 9 C2OUTEN: Comparator 2 Output Enable bit (1)

1 = Comparator output is driven on the output pad

0 = Comparator output is not driven on the output pad

bit 8 C1OUTEN: Comparator 1 Output Enable bit (2)

1 = Comparator output is driven on the output pad

0 = Comparator output is not driven on the output pad

bit 7 C2OUT: Comparator 2 Output bit

When C2INV = 0:

1 =C2 VIN+ > C2 VIN-

0 =C2 V

IN+ < C2 VIN-

When C2INV = 1:

0 =C2 VIN+ > C2 VIN-

1 =C2 VIN+ < C2 VIN-

Note 1: If C2OUTEN = 1, the C2OUT peripheral output must be configured to an available RPx pin. See

Section 11.6 “Peripheral Pin Select” for more information.

2: If C1OUTEN = 1, the C1OUT peripheral output must be configured to an available RPx pin. See

Section 11.6 “Peripheral Pin Select” for more information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 6 C1OUT: Comparator 1 Output bit

When C1INV = 0:

1 =C1 VIN+ > C1 VIN-

0 =C1 VIN+ < C1 VIN-

When C1INV = 1:

0 =C1 VIN+ > C1 VIN-

1 =C1 VIN+ < C1 VIN-

bit 5 C2INV: Comparator 2 Output Inversion bit

1 = C2 output inverted

0 = C2 output not inverted

bit 4 C1INV: Comparator 1 Output Inversion bit

1 = C1 output inverted

0 = C1 output not inverted

bit 3 C2NEG: Comparator 2 Negative Input Configure bit

1 = Input is connected to VIN+

0 = Input is connected to VIN-

See Figure 24-1 for Comparator modes.

bit 2 C2POS: Comparator 2 Positive Input Configure bit

1 = Input is connected to VIN+

0 = Input is connected to CVREF

See Figure 24-1 for Comparator modes.

bit 1 C1NEG: Comparator 1 Negative Input Configure bit

1 = Input is connected to VIN+

0 = Input is connected to VIN-

See Figure 24-1 for Comparator modes.

bit 0 C1POS: Comparator 1 Positive Input Configure bit

1 = Input is connected to VIN+

0 = Input is connected to CVREF

See Figure 24-1 for Comparator modes.

Note 1: If C2OUTEN = 1, the C2OUT peripheral output must be configured to an available RPx pin. See

Section 11.6 “Peripheral Pin Select” for more information.

2: If C1OUTEN = 1, the C1OUT peripheral output must be configured to an available RPx pin. See

Section 11.6 “Peripheral Pin Select” for more information.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

24.3 Comparator Voltage Reference

24.3.1 CONFIGURING THE COMPARATOR

VOLTAGE REFERENCE

The voltage reference module is controlled through the

CVRCON register (Register 24-2). The comparator

voltage reference provides two ranges of output

voltage, each with 16 distinct levels. The range to be

used is selected by the CVRR bit (CVRCON<5>). The

primary difference between the ranges is the size of the

steps selected by the CVREF Selection bits

(CVR3:CVR0), with one range offering finer resolution.

The comparator reference supply voltage can come

from either VDD and VSS, or the external VREF+ and

VREF-. The voltage source is selected by the CVRSS

bit (CVRCON<4>).

The settling time of the comparator voltage reference

must be considered when changing the CVREF

output.

FIGURE 24-2: COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM

16-to-1 MUX

CVREN

CVRSS = 0

AVDD

VREF+CVRSS = 1

CVRSS = 0

VREF-CVRSS = 1

16 Steps

CVRR

CVREF

CVR3

CVR2

CVR1

CVR0

CVRCON<3:0>

AVSS

CVRSRC

CVROE (CVRCON<6>)

CVREFIN

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

R/W

-0

R/W

-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CVREN CVROE CVRR CVRSS CVR<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Unimplemented: Read as ‘0’

bit 7 CVREN: Comparator Voltage Reference Enable bit

1 =CV

REF circuit powered on

0 =CV

REF circuit powered down

bit 6 CVROE: Comparator VREF Output Enable bit

1 =CV

REF voltage level is output on CVREF pin

0 =CVREF voltage level is disconnected from CVREF pin

bit 5 CVRR: Comparator VREF Range Selection bit

1 =CVRSRC range should be 0 to 0.625 CVRSRC with CVRSRC/24 step size

0 =CV

RSRC range should be 0.25 to 0.719 CVRSRC with CVRSRC/32 step size

bit 4 CVRSS: Comparator VREF Source Selection bit

1 = Comparator reference source CVRSRC = VREF+ – VREF-

0 = Comparator reference source CVRSRC = AVDD – AVSS

bit 3-0 CVR<3:0>: Comparator VREF Value Selection 0 ≤ CVR<3:0> ≤ 15 bits

When CVRR = 1:

CVREF = (CVR<3:0>/ 24) • (CVRSRC)

When CVRR = 0:

CVREF = 1/4 • (CVRSRC) + (CVR<3:0>/32) • (CVRSRC)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

25.0 REAL-TIME CLOCK AND

CALENDAR (RTCC)

This chapter discusses the Real-Time Clock and

Calendar (RTCC) module, available on

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 devices, and its

operation.

The following are some of the key features of this

module:

• Time: hours, minutes and seconds

• 24-hour format (military time)

• Calendar: weekday, date, month and year

• Alarm configurable

• Year range: 2000 to 2099

• Leap year correction

• BCD format for compact firmware

• Optimized for low-power operation

• User calibration with auto-adjust

• Calibration range: ±2.64 seconds error per month

• Requirements: External 32.768 kHz clock crystal

• Alarm pulse or seconds clock output on RTCC pin

The RTCC module is intended for applications where

accurate time must be maintained for extended periods

of time with minimum to no intervention from the CPU.

The RTCC module is optimized for low-power usage to

provide extended battery lifetime while keeping track of

time.

The RTCC module is a 100-year clock and calendar

with automatic leap year detection. The range of the

clock is from 00:00:00 (midnight) on January 1, 2000 to

23:59:59 on December 31, 2099.

The hours are available in 24-hour (military time)

format. The clock provides a granularity of one second

with half-second visibility to the user.

FIGURE 25-1: RTCC BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 37. “Real-Time

Clock and Calendar (RTCC)”

(DS70301) of the “dsPIC33F/PIC24H

Family Reference Manual”, which is

available from the Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

RTCC Prescalers

RTCC Timer

Comparator

Compare Registers

Repeat Counter

with Masks

RTCC Interrupt Logic

RCFGCAL

ALCFGRPT

Alarm

Event

32.768 kHz Input

from SOSC

0.5s

RTCC Clock Domain

Alarm Pulse

RTCC Interrupt

CPU Clock Domain

RTCVAL

ALRMVAL

RTCC Pin

RTCOE

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

25.1 RTCC Module Registers

The RTCC module registers are organized into three

categories:

• RTCC Control Registers

• RTCC Value Registers

• Alarm Value Registers

25.1.1 REGISTER MAPPING

To limit the register interface, the RTCC Timer and

Alarm Time registers are accessed through

corresponding register pointers. The RTCC Value

RTCPTR bits (RCFGCAL<9:8>) to select the desired

timer register pair (see Table 25-1).

By writing the RTCVALH byte, the RTCC Pointer value,

RTCPTR<1:0> bits, decrement by one until they reach

‘00’. Once they reach ‘00’, the MINUTES and

SECONDS value will be accessible through RTCVALH

and RTCVALL until the pointer value is manually

changed.

TABLE 25-1: RTCVAL REGISTER MAPPING

The Alarm Value register window (ALRMVALH and

ALRMVALL) uses the ALRMPTR bits

(ALCFGRPT<9:8>) to select the desired Alarm register

pair (see Table 25-2).

By writing the ALRMVALH byte, the Alarm Pointer

value, ALRMPTR<1:0> bits, decrement by one until

they reach ‘00’. Once they reach ‘00’, the ALRMMIN

and ALRMSEC value will be accessible through

ALRMVALH and ALRMVALL until the pointer value is

manually changed.

TABLE 25-2: ALRMVAL REGISTER

MAPPING

Considering that the 16-bit core does not distinguish

between 8-bit and 16-bit read operations, the user must

be aware that when reading either the ALRMVALH or

ALRMVALL bytes will decrement the ALRMPTR<1:0>

value. The same applies to the RTCVALH or RTCVALL

bytes with the RTCPTR<1:0> being decremented.

25.1.2 WRITE LOCK

In order to perform a write to any of the RTCC Timer

registers, the RTCWREN bit (RCFGCAL<13>) must be

set (refer to Example 25-1).

EXAMPLE 25-1: SETTING THE RTCWREN BIT

RTCPTR

<1:0>

RTCC Value Register Window

RTCVAL<15:8> RTCVAL<7:0>

00 MINUTES SECONDS

01 WEEKDAY HOURS

10 MONTH DAY

11 — YEAR

ALRMPTR

<1:0>

Alarm Value Register Window

ALRMVAL<15:8> ALRMVAL<7:0>

00 ALRMMIN ALRMSEC

01 ALRMWD ALRMHR

10 ALRMMNTH ALRMDAY

11 ——

Note: This only applies to read operations and

not write operations.

Note: To avoid accidental writes to the timer, it is

recommended that the RTCWREN bit

(RCFGCAL<13>) is kept clear at any

other time. For the RTCWREN bit to be

set, there is only 1 instruction cycle time

window allowed between the 55h/AA

sequence and the setting of RTCWREN;

therefore, it is recommended that code

follow the procedure in Example 25-1.

MOV #NVMKEY, W1 ;move the address of NVMKEY into W1

MOV #0x55, W2

MOV #0xAA, W3

MOV W2, [W1] ;start 55/AA sequence

MOV W3, [W1]

BSET RCFGCAL, #13 ;set the RTCWREN bit

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

25.2 RTCC Resources

Many useful resources related to RTCC are provided

on the main product page of the Microchip web site for

the devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

25.2.1 KEY RESOURCES

•Section 37. “Real-Time Clock and Calendar

(RTCC)” (DS70301)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwprod-

ucts/Devices.aspx?dDoc-

Name=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

25.3 RTCC Registers

(1)

R/W-0 U-0 R/W-0 R-0 R-0 R/W-0 R/W-0 R/W-0

RTCEN(2) — RTCWREN RTCSYNC HALFSEC(3) RTCOE RTCPTR<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CAL<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 RTCEN: RTCC Enable bit(2)

1 = RTCC module is enabled

0 = RTCC module is disabled

bit 14 Unimplemented: Read as ‘0’

bit 13 RTCWREN: RTCC Value Registers Write Enable bit

1 = RTCVALH and RTCVALL registers can be written to by the user

0 = RTCVALH and RTCVALL registers are locked out from being written to by the user

bit 12 RTCSYNC: RTCC Value Registers Read Synchronization bit

1 = RTCVALH, RTCVALL and ALCFGRPT registers can change while reading due to a rollover ripple

resulting in an invalid data read. If the register is read twice and results in the same data, the data

can be assumed to be valid

0 = RTCVALH, RTCVALL or ALCFGRPT register can be read without concern over a rollover ripple

bit 11 HALFSEC: Half-Second Status bit(3)

1 = Second half period of a second

0 = First half period of a second

bit 10 RTCOE: RTCC Output Enable bit

1 = RTCC output enabled

0 = RTCC output disabled

bit 9-8 RTCPTR<1:0>: RTCC Value Register Window Pointer bits

Points to the corresponding RTCC Value registers when reading RTCVALH and RTCVALL registers;

the RTCPTR<1:0> value decrements on every read or write of RTCVALH until it reaches ‘00’.

RTCVAL<15:8>:

11 = Reserved

10 = MONTH

01 = WEEKDAY

00 = MINUTES

RTCVAL<7:0>:

11 = YEAR

10 = DAY

01 = HOURS

00 = SECONDS

Note 1: The RCFGCAL register is only affected by a POR.

2: A write to the RTCEN bit is only allowed when RTCWREN = 1.

3: This bit is read-only. It is cleared to ‘0’ on a write to the lower half of the MINSEC register.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 7-0 CAL<7:0>: RTC Drift Calibration bits

11111111 = Minimum negative adjustment; subtracts 4 RTC clock pulses every one minute

•

10000000 = Maximum negative adjustment; subtracts 512 RTC clock pulses every one minute

01111111 = Maximum positive adjustment; adds 508 RTC clock pulses every one minute

•

00000001 = Minimum positive adjustment; adds 4 RTC clock pulses every one minute

00000000 = No adjustment

(1)

(CONTINUED)

Note 1: The RCFGCAL register is only affected by a POR.

2: A write to the RTCEN bit is only allowed when RTCWREN = 1.

3: This bit is read-only. It is cleared to ‘0’ on a write to the lower half of the MINSEC register.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

— — — — — — RTSECSEL(1) PMPTTL

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-2 Unimplemented: Read as ‘0’

bit 1 RTSECSEL: RTCC Seconds Clock Output Select bit(1)

1 = RTCC seconds clock is selected for the RTCC pin

0 = RTCC alarm pulse is selected for the RTCC pin

bit 0 PMPTTL: PMP Module TTL Input Buffer Select bit

1 = PMP module uses TTL input buffers

0 = PMP module uses Schmitt Trigger input buffers

Note 1: To enable the actual RTCC output, the RTCOE bit (RCFGCAL) needs to be set.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ALRMEN CHIME AMASK<3:0> ALRMPTR<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ARPT<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ALRMEN: Alarm Enable bit

1 = Alarm is enabled (cleared automatically after an alarm event whenever ARPT<7:0> = 0x00 and

CHIME = 0)

0 = Alarm is disabled

bit 14 CHIME: Chime Enable bit

1 = Chime is enabled; ARPT<7:0> bits are allowed to roll over from 0x00 to 0xFF

0 = Chime is disabled; ARPT<7:0> bits stop once they reach 0x00

bit 13-10 AMASK<3:0>: Alarm Mask Configuration bits

11xx = Reserved – do not use

101x = Reserved – do not use

1001 = Once a year (except when configured for February 29th, once every 4 years)

1000 = Once a month

0111 = Once a week

0110 = Once a day

0101 = Every hour

0100 = Every 10 minutes

0011 = Every minute

0010 = Every 10 seconds

0001 = Every second

0000 = Every half second

bit 9-8 ALRMPTR<1:0>: Alarm Value Register Window Pointer bits

Points to the corresponding Alarm Value registers when reading ALRMVALH and ALRMVALL registers;

the ALRMPTR<1:0> value decrements on every read or write of ALRMVALH until it reaches ‘00’.

ALRMVAL<15:8>:

11 = Unimplemented

10 = ALRMMNTH

01 = ALRMWD

00 = ALRMMIN

ALRMVAL<7:0>:

11 = Unimplemented

10 = ALRMDAY

01 = ALRMHR

00 = ALRMSEC

bit 7-0 ARPT<7:0>: Alarm Repeat Counter Value bits

11111111 = Alarm will repeat 255 more times

•

00000000 = Alarm will not repeat

The counter decrements on any alarm event. The counter is prevented from rolling over from 0x00 to

0xFF unless CHIME = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

YRTEN<3:0> YRONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-8 Unimplemented: Read as ‘0’

bit 7-4 YRTEN<3:0>: Binary Coded Decimal Value of Year’s Tens Digit; contains a value from 0 to 9

bit 3-0 YRONE<3:0>: Binary Coded Decimal Value of Year’s Ones Digit; contains a value from 0 to 9

Note 1: A write to the YEAR register is only allowed when RTCWREN = 1.

U-0 U-0 U-0 R-x R-x R-x R-x R-x

— — —

MTHTEN0 MTHONE<3:0>

bit 15 bit 8

U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— —

DAYTEN<1:0> DAYONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12 MTHTEN0: Binary Coded Decimal Value of Month’s Tens Digit; contains a value of 0 or 1

bit 11-8 MTHONE<3:0>: Binary Coded Decimal Value of Month’s Ones Digit; contains a value from 0 to 9

bit 7-6 Unimplemented: Read as ‘0’

bit 5-4 DAYTEN<1:0>: Binary Coded Decimal Value of Day’s Tens Digit; contains a value from 0 to 3

bit 3-0 DAYONE<3:0>: Binary Coded Decimal Value of Day’s Ones Digit; contains a value from 0 to 9

Note 1: A write to this register is only allowed when RTCWREN = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x

— — — — — WDAY<2:0>

bit 15 bit 8

U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

—— HRTEN<1:0> HRONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 WDAY<2:0>: Binary Coded Decimal Value of Weekday Digit; contains a value from 0 to 6

bit 7-6 Unimplemented: Read as ‘0’

bit 5-4 HRTEN<1:0>: Binary Coded Decimal Value of Hour’s Tens Digit; contains a value from 0 to 2

bit 3-0 HRONE<3:0>: Binary Coded Decimal Value of Hour’s Ones Digit; contains a value from 0 to 9

Note 1: A write to this register is only allowed when RTCWREN = 1.

U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— MINTEN<2:0> MINONE<3:0>

bit 15 bit 8

U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— SECTEN<2:0> SECONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 MINTEN<2:0>: Binary Coded Decimal Value of Minute’s Tens Digit; contains a value from 0 to 5

bit 11-8 MINONE<3:0>: Binary Coded Decimal Value of Minute’s Ones Digit; contains a value from 0 to 9

bit 7 Unimplemented: Read as ‘0’

bit 6-4 SECTEN<2:0>: Binary Coded Decimal Value of Second’s Tens Digit; contains a value from 0 to 5

bit 3-0 SECONE<3:0>: Binary Coded Decimal Value of Second’s Ones Digit; contains a value from 0 to 9

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x

— — —

MTHTEN0 MTHONE<3:0>

bit 15 bit 8

U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— —

DAYTEN<1:0> DAYONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-13 Unimplemented: Read as ‘0’

bit 12 MTHTEN0: Binary Coded Decimal Value of Month’s Tens Digit; contains a value of 0 or 1

bit 11-8 MTHONE<3:0>: Binary Coded Decimal Value of Month’s Ones Digit; contains a value from 0 to 9

bit 7-6 Unimplemented: Read as ‘0’

bit 5-4 DAYTEN<1:0>: Binary Coded Decimal Value of Day’s Tens Digit; contains a value from 0 to 3

bit 3-0 DAYONE<3:0>: Binary Coded Decimal Value of Day’s Ones Digit; contains a value from 0 to 9

Note 1: A write to this register is only allowed when RTCWREN = 1.

VALUE REGISTER(1)

U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x R/W-x

— — — — — WDAY2 WDAY1 WDAY0

bit 15 bit 8

U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

—— HRTEN<1:0> HRONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-11 Unimplemented: Read as ‘0’

bit 10-8 WDAY<2:0>: Binary Coded Decimal Value of Weekday Digit; contains a value from 0 to 6

bit 7-6 Unimplemented: Read as ‘0’

bit 5-4 HRTEN<1:0>: Binary Coded Decimal Value of Hour’s Tens Digit; contains a value from 0 to 2

bit 3-0 HRONE<3:0>: Binary Coded Decimal Value of Hour’s Ones Digit; contains a value from 0 to 9

Note 1: A write to this register is only allowed when RTCWREN = 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

VALUE REGISTER

U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— MINTEN<2:0> MINONE<3:0>

bit 15 bit 8

U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x

— SECTEN<2:0> SECONE<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14-12 MINTEN<2:0>: Binary Coded Decimal Value of Minute’s Tens Digit; contains a value from 0 to 5

bit 11-8 MINONE<3:0>: Binary Coded Decimal Value of Minute’s Ones Digit; contains a value from 0 to 9

bit 7 Unimplemented: Read as ‘0’

bit 6-4 SECTEN<2:0>: Binary Coded Decimal Value of Second’s Tens Digit; contains a value from 0 to 5

bit 3-0 SECONE<3:0>: Binary Coded Decimal Value of Second’s Ones Digit; contains a value from 0 to 9

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

26.0 PROGRAMMABLE CYCLIC

REDUNDANCY CHECK (CRC)

GENERATOR

The programmable CRC generator offers the following

features:

• User-programmable polynomial CRC equation

• Interrupt output

• Data FIFO

26.1 Overview

The module implements a software configurable CRC

generator. The terms of the polynomial and its length

can be programmed using the CRCXOR bits (X<15:1>)

and the CRCCON bits (PLEN<3:0>), respectively.

EQUATION 26-1: CRC EQUATION

To program this polynomial into the CRC generator,

the CRC register bits should be set as shown in

Table 26-1.

TABLE 26-1: EXAMPLE CRC SETUP

For the value of X<15:1>, the 12th bit and the 5th bit are

set to ‘1’, as required by the CRC equation. The 0th bit

required by the CRC equation is always XORed. For a

16-bit polynomial, the 16th bit is also always assumed

to be XORed; therefore, the X<15:1> bits do not have

the 0th bit or the 16th bit.

The topology of a standard CRC generator is shown in

Figure 26-2.

FIGURE 26-1: CRC SHIFTER DETAILS

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 36.

“Programmable Cyclic Redundancy

Check (CRC)” (DS70298) of the

“dsPIC33F/PIC24H Family Reference

Manual”, which is available from the

Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

Bit Name Bit Value

PLEN<3:0> 1111

X<15:1> 000100000010000

x16 x12 x51+++

OUT

BIT 0

p_clk

OUT

BIT 1

p_clk

OUT

BIT 2

p_clk

OUT

BIT 15

p_clk

X15

XOR

DOUT

01 2 15

PLEN<3:0>

Hold Hold Hold Hold

CRC Read Bus

CRC Write Bus

CRC Shift Register

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 26-2: CRC GENERATOR RECONFIGURED FOR x16 + x12 + x5 + 1

26.2 User Interface

26.2.1 DATA INTERFACE

To start serial shifting, a ‘1’ must be written to the

CRCGO bit.

The module incorporates a FIFO that is 8 deep when

PLEN (PLEN<3:0>) > 7, and 16 deep, otherwise. The

data for which the CRC is to be calculated must first be

written into the FIFO. The smallest data element that

can be written into the FIFO is one byte. For example,

if PLEN = 5, then the size of the data is PLEN + 1 = 6.

The data must be written as follows:

data[5:0] = crc_input[5:0]

data[7:6] = ‘bxx

Once data is written into the CRCWDAT MSb (as

defined by PLEN), the value of VWORD

(VWORD<4:0>) increments by one. The serial shifter

starts shifting data into the CRC engine when

CRCGO = 1 and VWORD > 0. When the MSb is

shifted out, VWORD decrements by one. The serial

shifter continues shifting until the VWORD reaches 0.

Therefore, for a given value of PLEN, it will take

(PLEN + 1) * VWORD number of clock cycles to

complete the CRC calculations.

When VWORD reaches 8 (or 16), the CRCFUL bit will

be set. When VWORD reaches 0, the CRCMPT bit will

be set.

To continually feed data into the CRC engine, the

recommended mode of operation is to initially “prime”

the FIFO with a sufficient number of words so no

interrupt is generated before the next word can be

written. Once that is done, start the CRC by setting the

CRCGO bit to ‘1’. From that point onward, the VWORD

bits should be polled. If they read less than 8 or 16,

another word can be written into the FIFO.

To empty words already written into a FIFO, the

CRCGO bit must be set to ‘1’ and the CRC shifter

allowed to run until the CRCMPT bit is set.

Also, to get the correct CRC reading, it will be

necessary to wait for the CRCMPT bit to go high before

reading the CRCWDAT register.

If a word is written when the CRCFUL bit is set, the

VWORD Pointer will roll over to 0. The hardware will

then behave as if the FIFO is empty. However, the

condition to generate an interrupt will not be met;

therefore, no interrupt will be generated (See

Section 26.2.2 “Interrupt Operation”).

At least one instruction cycle must pass after a write to

CRCWDAT before a read of the VWORD bits is done.

26.2.2 INTERRUPT OPERATION

When the VWORD4:VWORD0 bits make a transition

from a value of ‘1’ to ‘0’, an interrupt will be generated.

26.3 Operation in Power-Saving Modes

26.3.1 SLEEP MODE

If Sleep mode is entered while the module is operating,

the module will be suspended in its current state until

clock execution resumes.

26.3.2 IDLE MODE

To continue full module operation in Idle mode, the

CSIDL bit must be cleared prior to entry into the mode.

If CSIDL = 1, the module will behave the same way as

it does in Sleep mode; pending interrupt events will be

passed on, even though the module clocks are not

available.

BIT 0

p_clk

BIT 4

p_clk

BIT 5

p_clk

BIT 12

p_clk

XOR

SDOx

CRC Read Bus

CRC Write Bus

BIT 15

p_clk

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

26.4 Programmable CRC Resources

Many useful resources related to Programmable CRC

are provided on the main product page of the Microchip

web site for the devices listed in this data sheet. This

product page, which can be accessed using this link,

contains the latest updates and additional information.

26.4.1 KEY RESOURCES

•Section 37. “Programmable Cyclic Redundancy

Check (CRC)” (DS70298)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

26.5 Programmable CRC Registers

U-0 U-0 R/W-0 R-0 R-0 R-0 R-0 R-0

—— CSIDL VWORD<4:0>

bit 15 bit 8

R-0 R-1 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

CRCFUL CRCMPT — CRCGO PLEN<3:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-14 Unimplemented: Read as ‘0’

bit 13 CSIDL: CRC Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12-8 VWORD<4:0>: Pointer Value bits

Indicates the number of valid words in the FIFO. Has a maximum value of 8 when PLEN<3:0> > 7,

or 16 when PLEN<3:0> ≤ 7.

bit 7 CRCFUL: FIFO Full bit

1 = FIFO is full

0 = FIFO is not full

bit 6 CRCMPT: FIFO Empty Bit

1 = FIFO is empty

0 = FIFO is not empty

bit 5 Unimplemented: Read as ‘0’

bit 4 CRCGO: Start CRC bit

1 = Start CRC serial shifter

0 = Turn off the CRC serial shifter after the FIFO is empty

bit 3-0 PLEN<3:0>: Polynomial Length bits

Denotes the length of the polynomial to be generated minus 1.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

X<15:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 U-0

X<7:1> —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-1 X<15:1>: XOR of Polynomial Term Xn Enable bits

bit 0 Unimplemented: Read as ‘0’

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

27.0 PARALLEL MASTER PORT

(PMP)

The Parallel Master Port (PMP) module is a parallel

8-bit I/O module, specifically designed to

communicate with a wide variety of parallel devices,

such as communication peripherals, LCDs, external

memory devices and microcontrollers. Because the

interface to parallel peripherals varies significantly,

the PMP is highly configurable.

Key features of the PMP module include:

• Fully Multiplexed Address/Data Mode

- 16 bits of address

• Demultiplexed or Partially Multiplexed Address/

Data mode:

- Up to 11 address lines with single Chip Select

- Up to 12 address lines without Chip Select

• One Chip Select Line

• Programmable Strobe Options:

- Individual Read and Write Strobes or;

- Read/Write Strobe with Enable Strobe

• Address Auto-Increment/Auto-Decrement

• Programmable Address/Data Multiplexing

• Programmable Polarity on Control Signals

• Legacy Parallel Slave Port Support

• Enhanced Parallel Slave Support:

- Address Support

- 4-Byte Deep Auto-Incrementing Buffer

• Programmable Wait States

• Selectable Input Voltage Levels

FIGURE 27-1: PMP MODULE OVERVIEW

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to Section 35. “Parallel

Master Port (PMP)” (DS70299) of the

“dsPIC33F/PIC24H Family Reference

Manual”, which is available from the

Microchip web site

(www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

PMA<0>

PMBE

PMRD

PMWR

PMD<7:0>

PMENB

PMRD/PMWR

PMCS1

PMA<1>

PMA<10:2>

PMALL

PMALH

PMA<7:0>

PMA<10:8>

EEPROM

Address Bus

Data Bus

Control Lines

dsPIC33F

LCD FIFO

Microcontroller

8-bit Data

Up to 11-bit Address

Parallel Master Port

Buffer

Note 1: 28-pin devices do not have PMA<10:2>.

(1)

PMA<14>

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

27.1 PMP Resources

Many useful resources related to PMP are provided on

the main product page of the Microchip web site for the

devices listed in this data sheet. This product page,

which can be accessed using this link, contains the

latest updates and additional information.

27.1.1 KEY RESOURCES

•Section 35. “Parallel Master Port (PMP)”

(DS70299)

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All related dsPIC33F/PIC24H Family Reference

Manuals Sections

• Development Tools

Note: In the event you are not able to access the

product page using the link above, enter

this URL in your browser:

http://www.microchip.com/wwwproducts/

Devices.aspx?dDocName=en532315

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

27.2 PMP Control Registers

R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PMPEN — PSIDL

ADRMUX1

(1)

ADRMUX0

(1) PTBEEN PTWREN PTRDEN

bit 15 bit 8

R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0

CSF1 CSF0 ALP(2) —CS1P

(2) BEP WRSP RDSP

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 PMPEN: Parallel Master Port Enable bit

1 = PMP enabled

0 = PMP disabled, no off-chip access performed

bit 14 Unimplemented: Read as ‘0’

bit 13 PSIDL: Stop in Idle Mode bit

1 = Discontinue module operation when device enters Idle mode

0 = Continue module operation in Idle mode

bit 12-11 ADRMUX1:ADRMUX0: Address/Data Multiplexing Selection bits(1)

11 = Reserved

10 = All 16 bits of address are multiplexed on PMD<7:0> pins

01 = Lower 8 bits of address are multiplexed on PMD<7:0> pins, upper 3 bits are multiplexed on

PMA<10:8>

00 = Address and data appear on separate pins

bit 10 PTBEEN: Byte Enable Port Enable bit (16-bit Master mode)

1 = PMBE port enabled

0 = PMBE port disabled

bit 9 PTWREN: Write Enable Strobe Port Enable bit

1 = PMWR/PMENB port enabled

0 = PMWR/PMENB port disabled

bit 8 PTRDEN: Read/Write Strobe Port Enable bit

1 = PMRD/PMWR port enabled

0 = PMRD/PMWR port disabled

bit 7-6 CSF1:CSF0: Chip Select Function bits

11 = Reserved

10 = PMCS1 functions as chip select

0x = PMCS1 functions as address bit 14

bit 5 ALP: Address Latch Polarity bit(2)

1 = Active-high (PMALL and PMALH)

0 = Active-low (PMALL and PMALH)

bit 4 Unimplemented: Read as ‘0’

bit 3 CS1P: Chip Select 1 Polarity bit(2)

1 = Active-high (PMCS1/PMCS1)

0 = Active-low (PMCS1/PMCS1)

Note 1: 28-pin devices do not have PMA<10:2>.

2: These bits have no effect when their corresponding pins are used as address lines.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

bit 2 BEP: Byte Enable Polarity bit

1 = Byte enable active-high (PMBE)

0 = Byte enable active-low (PMBE)

bit 1 WRSP: Write Strobe Polarity bit

For Slave modes and Master mode 2 (PMMODE<9:8> = 00,01,10):

1 = Write strobe active-high (PMWR)

0 = Write strobe active-low (PMWR)

For Master mode 1 (PMMODE<9:8> = 11):

1 = Enable strobe active-high (PMENB)

0 = Enable strobe active-low (PMENB)

bit 0 RDSP: Read Strobe Polarity bit

For Slave modes and Master mode 2 (PMMODE<9:8> = 00,01,10):

1 = Read strobe active-high (PMRD)

0 = Read strobe active-low (PMRD)

For Master mode 1 (PMMODE<9:8> = 11):

1 = Read/write strobe active-high (PMRD/PMWR)

0 = Read/write strobe active-low (PMRD/PMWR)

Note 1: 28-pin devices do not have PMA<10:2>.

2: These bits have no effect when their corresponding pins are used as address lines.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

BUSY IRQM<1:0> INCM<1:0> MODE16 MODE<1:0>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

WAITB<1:0>(1) WAITM<3:0> WAITE<1:0>(1)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 BUSY: Busy bit (Master mode only)

1 = Port is busy (not useful when the processor stall is active)

0 = Port is not busy

bit 14-13 IRQM<1:0>: Interrupt Request Mode bits

11 = Interrupt generated when Read Buffer 3 is read or Write Buffer 3 is written (Buffered PSP mode)

or on a read or write operation when PMA<1:0> = 11 (Addressable PSP mode only)

10 = No interrupt generated, processor stall activated

01 = Interrupt generated at the end of the read/write cycle

00 = No interrupt generated

bit 12-11 INCM<1:0>: Increment Mode bits

11 = PSP read and write buffers auto-increment (Legacy PSP mode only)

10 = Decrement ADDR<10:0> by 1 every read/write cycle

01 = Increment ADDR<10:0> by 1 every read/write cycle

00 = No increment or decrement of address

bit 10 MODE16: 8/16-bit Mode bit

1 = 16-bit mode: data register is 16 bits, a read or write to the data register invokes two 8-bit transfers

0 = 8-bit mode: data register is 8 bits, a read or write to the data register invokes one 8-bit transfer

bit 9-8 MODE<1:0>: Parallel Port Mode Select bits

11 = Master mode 1 (PMCS1, PMRD/PMWR, PMENB, PMBE, PMA<x:0> and PMD<7:0>)

10 = Master mode 2 (PMCS1, PMRD, PMWR, PMBE, PMA<x:0> and PMD<7:0>)

01 = Enhanced PSP, control signals (PMRD, PMWR, PMCS1, PMD<7:0> and PMA<1:0>)

00 = Legacy Parallel Slave Port, control signals (PMRD, PMWR, PMCS1 and PMD<7:0>)

bit 7-6 WAITB<1:0>: Data Setup to Read/Write Wait State Configuration bits(1)

11 = Data wait of 4 TCY; multiplexed address phase of 4 TCY

10 = Data wait of 3 TCY; multiplexed address phase of 3 TCY

01 = Data wait of 2 TCY; multiplexed address phase of 2 TCY

00 = Data wait of 1 TCY; multiplexed address phase of 1 TCY

bit 5-2 WAITM<3:0>: Read to Byte Enable Strobe Wait State Configuration bits

1111 = Wait of additional 15 TCY

•

0001 = Wait of additional 1 TCY

0000 = No additional wait cycles (operation forced into one TCY)

bit 1-0 WAITE<1:0>: Data Hold After Strobe Wait State Configuration bits(1)

11 = Wait of 4 TCY

10 = Wait of 3 TCY

01 = Wait of 2 TCY

00 = Wait of 1 TCY

Note 1: WAITB and WAITE bits are ignored whenever WAITM3:WAITM0 = 0000.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ADDR15 CS1 ADDR<13:8>

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

ADDR<7:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 ADDR15: Parallel Port Destination Address bit

bit 14 CS1: Chip Select 1 bit

1 = Chip select 1 is active

0 = Chip select 1 is inactive

bit 13-0 ADDR13:ADDR0: Parallel Port Destination Address bits

U-0 R/W-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0

—PTEN14— — — PTEN<10:8>(1)

bit 15 bit 8

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

PTEN<7:2>(1) PTEN<1:0>

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 Unimplemented: Read as ‘0’

bit 14 PTEN14: PMCS1 Strobe Enable bit

1 = PMA14 functions as either PMA<14> bit or PMCS1

0 = PMA14 pin functions as port I/O

bit 13-11 Unimplemented: Read as ‘0’

bit 10-2 PTEN<10:2>: PMP Address Port Enable bits(1)

1 = PMA<10:2> function as PMP address lines

0 = PMA<10:2> function as port I/O

bit 1-0 PTEN<1:0>: PMALH/PMALL Strobe Enable bits

1 = PMA1 and PMA0 function as either PMA<1:0> or PMALH and PMALL

0 = PMA1 and PMA0 pads functions as port I/O

Note 1: Devices with 28 pins do not have PMA<10:2>.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

R-0 R/W-0, HS U-0 U-0 R-0 R-0 R-0 R-0

IBF IBOV —— IB3F IB2F IB1F IB0F

bit 15 bit 8

R-1 R/W-0, HS U-0 U-0 R-1 R-1 R-1 R-1

OBE OBUF —— OB3E OB2E OB1E OB0E

bit 7 bit 0

Legend: HS = Hardware Set bit

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15 IBF: Input Buffer Full Status bit

1 = All writable input buffer registers are full

0 = Some or all of the writable input buffer registers are empty

bit 14 IBOV: Input Buffer Overflow Status bit

1 = A write attempt to a full input byte register occurred (must be cleared in software)

0 = No overflow occurred

bit 13-12 Unimplemented: Read as ‘0’

bit 11-8 IB3F:IB0F: Input Buffer x Status Full bits

1 = Input buffer contains data that has not been read (reading buffer will clear this bit)

0 = Input buffer does not contain any unread data

bit 7 OBE: Output Buffer Empty Status bit

1 = All readable output buffer registers are empty

0 = Some or all of the readable output buffer registers are full

bit 6 OBUF: Output Buffer Underflow Status bits

1 = A read occurred from an empty output byte register (must be cleared in software)

0 = No underflow occurred

bit 5-4 Unimplemented: Read as ‘0’

bit 3-0 OB3E:OB0E Output Buffer x Status Empty bit

1 = Output buffer is empty (writing data to the buffer will clear this bit)

0 = Output buffer contains data that has not been transmitted

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0

— — — — — — — —

bit 15 bit 8

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0

— — — — — — RTSECSEL(1) PMPTTL

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown

bit 15-2 Unimplemented: Read as ‘0’

bit 1 RTSECSEL: RTCC Seconds Clock Output Select bit(1)

1 = RTCC seconds clock is selected for the RTCC pin

0 = RTCC alarm pulse is selected for the RTCC pin

bit 0 PMPTTL: PMP Module TTL Input Buffer Select bit

1 = PMP module uses TTL input buffers

0 = PMP module uses Schmitt Trigger input buffers

Note 1: To enable the actual RTCC output, the RTCOE bit (RCFGCAL) needs to be set.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28.0 SPECIAL FEATURES

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices include

the following features intended to maximize application

flexibility and reliability, and minimize cost through

elimination of external components:

• Flexible configuration

• Watchdog Timer (WDT)

• Code Protection and CodeGuard™ Security

• JTAG Boundary Scan Interface

• In-Circuit Serial Programming™ (ICSP™)

• In-Circuit Emulation

28.1 Configuration Bits

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices provide

nonvolatile memory implementations for device

Configuration bits. Refer to Section 25. “Device

Configuration” (DS70194) in the “dsPIC33F/PIC24H

Family Reference Manual” for more information on this

implementation.

The Configuration bits can be programmed (read as

‘0’), or left unprogrammed (read as ‘1’), to select

various device configurations. These bits are mapped

starting at program memory location 0xF80000.

The individual Configuration bit descriptions for the

Configuration registers are shown in Table 28-2.

Note that address 0xF80000 is beyond the user program

memory space. It belongs to the configuration memory

space (0x800000-0xFFFFFF), which can only be

accessed using table reads and table writes.

The Device Configuration register map is shown in

Table 28-1.

Note 1: This data sheet summarizes the features

of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. However, it is not intended to be

a comprehensive reference source. To

complement the information in this data

sheet, refer to the “dsPIC33F/PIC24H

Family Reference Manual”. Please see

the Microchip web site

(www.microchip.com) for the latest

dsPIC33F/PIC24H Family Reference

Manual sections.

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

TABLE 28-1: DEVICE CONFIGURATION REGISTER MAP

Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0xF80000 FBS RBS<1:0> —— BSS<2:0> BWRP

0xF80002 FSS(1) RSS<1:0> —— SSS<2:0> SWRP

0xF80004 FGS — — — — — GSS<1:0> GWRP

0xF80006 FOSCSEL IESO — — —FNOSC<2:0>

0xF80008 FOSC FCKSM<1:0> IOL1WAY — — OSCIOFNC POSCMD<1:0>

0xF8000A FWDT FWDTEN WINDIS — WDTPRE WDTPOST<3:0>

0xF8000C FPOR PWMPIN HPOL LPOL ALTI2C —FPWRT<2:0>

0xF8000E FICD Reserved(2) JTAGEN — — —ICS<1:0>

0xF80010 FUID0 User Unit ID Byte 0

0xF80012 FUID1 User Unit ID Byte 1

0xF80014 FUID2 User Unit ID Byte 2

0xF80016 FUID3 User Unit ID Byte 3

Legend: — = unimplemented bit, read as ‘0’.

Note 1: This Configuration register is not available and reads as 0xFF on dsPIC33FJ32MC302/304 devices.

2: These bits are reserved for use by development tools and must be programmed as ‘1’.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 28-2: dsPIC33F CONFIGURATION BITS DESCRIPTION

Bit Field Register RTSP Effect Description

BWRP FBS Immediate Boot Segment Program Flash Write Protection

1 = Boot segment can be written

0 = Boot segment is write-protected

BSS<2:0> FBS Immediately Boot Segment Program Flash Code Protection Size

X11 = No Boot program Flash segment

Boot space is 1K Instruction Words (except interrupt vectors)

110 = Standard security; boot program Flash segment ends at

0x0007FE

010 = High security; boot program Flash segment ends at 0x0007FE

Boot space is 4K Instruction Words (except interrupt vectors)

101 = Standard security; boot program Flash segment, ends at

0x001FFE

001 = High security; boot program Flash segment ends at 0x001FFE

Boot space is 8K Instruction Words (except interrupt vectors)

100 = Standard security; boot program Flash segment ends at

0x003FFE

000 = High security; boot program Flash segment ends at 0x003FFE

RBS<1:0>(1) FBS Immediate Boot Segment RAM Code Protection Size

11 = No Boot RAM defined

10 = Boot RAM is 128 bytes

01 = Boot RAM is 256 bytes

00 = Boot RAM is 1024 bytes

SWRP(1) FSS(1) Immediate Secure Segment Program Flash Write-Protect bit

1 = Secure Segment can bet written

0 = Secure Segment is write-protected

SSS<2:0> FSS Immediate Secure Segment Program Flash Code Protection Size

(Secure segment is not implemented on 32K devices)

X11 = No Secure program flash segment

Secure space is 4K IW less BS

110 = Standard security; secure program Flash segment starts at End

of BS, ends at 0x001FFE

010 = High security; secure program Flash segment starts at End of

BS, ends at 0x001FFE

Secure space is 8K IW less BS

101 = Standard security; secure program Flash segment starts at End

of BS, ends at 0x003FFE

001 = High security; secure program Flash segment starts at End of

BS, ends at 0x003FFE

Secure space is 16K IW less BS

100 = Standard security; secure program Flash segment starts at End

of BS, ends at 007FFEh

000 = High security; secure program Flash segment starts at End of

BS, ends at 0x007FFE

RSS<1:0>(1) FSS(1) Immediate Secure Segment RAM Code Protection

11 = No Secure RAM defined

10 = Secure RAM is 256 Bytes less BS RAM

01 = Secure RAM is 2048 Bytes less BS RAM

00 = Secure RAM is 4096 Bytes less BS RAM

Note 1: This Configuration register is not available on dsPIC33FJ32MC302/304 devices.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

GSS<1:0> FGS Immediate General Segment Code-Protect bit

11 = User program memory is not code-protected

10 = Standard security

0x = High security

GWRP FGS Immediate General Segment Write-Protect bit

1 = User program memory is not write-protected

0 = User program memory is write-protected

IESO FOSCSEL Immediate Two-speed Oscillator Start-up Enable bit

1 = Start-up device with FRC, then automatically switch to the

user-selected oscillator source when ready

0 = Start-up device with user-selected oscillator source

FNOSC<2:0> FOSCSEL If clock

switch is

enabled,

RTSP effect

is on any

device

Reset;

otherwise,

Immediate

Initial Oscillator Source Selection bits

111 = Internal Fast RC (FRC) oscillator with postscaler

110 = Internal Fast RC (FRC) oscillator with divide-by-16

101 = LPRC oscillator

100 = Secondary (LP) oscillator

011 = Primary (XT, HS, EC) oscillator with PLL

010 = Primary (XT, HS, EC) oscillator

001 = Internal Fast RC (FRC) oscillator with PLL

000 = FRC oscillator

FCKSM<1:0> FOSC Immediate Clock Switching Mode bits

1x = Clock switching is disabled, Fail-Safe Clock Monitor is disabled

01 = Clock switching is enabled, Fail-Safe Clock Monitor is disabled

00 = Clock switching is enabled, Fail-Safe Clock Monitor is enabled

IOL1WAY FOSC Immediate Peripheral Pin Select Configuration bit

1 = Allow only one reconfiguration

0 = Allow multiple reconfigurations

OSCIOFNC FOSC Immediate OSC2 Pin Function bit (except in XT and HS modes)

1 = OSC2 is clock output

0 = OSC2 is general purpose digital I/O pin

POSCMD<1:0> FOSC Immediate Primary Oscillator Mode Select bits

11 = Primary oscillator disabled

10 = HS Crystal Oscillator mode

01 = XT Crystal Oscillator mode

00 = EC (External Clock) mode

FWDTEN FWDT Immediate Watchdog Timer Enable bit

1 = Watchdog Timer always enabled (LPRC oscillator cannot be disabled.

Clearing the SWDTEN bit in the RCON register has no effect.)

0 = Watchdog Timer enabled/disabled by user software (LPRC can be

disabled by clearing the SWDTEN bit in the RCON register)

WINDIS FWDT Immediate Watchdog Timer Window Enable bit

1 = Watchdog Timer in Non-Window mode

0 = Watchdog Timer in Window mode

WDTPRE FWDT Immediate Watchdog Timer Prescaler bit

1 = 1:128

0 = 1:32

TABLE 28-2: dsPIC33F CONFIGURATION BITS DESCRIPTION (CONTINUED)

Bit Field Register RTSP Effect Description

Note 1: This Configuration register is not available on dsPIC33FJ32MC302/304 devices.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

WDTPOST<3:0> FWDT Immediate Watchdog Timer Postscaler bits

1111 = 1:32,768

1110 = 1:16,384

•

0001 = 1:2

0000 = 1:1

PWMPIN FPOR Immediate Motor Control PWM Module Pin Mode bit

1 = PWM module pins controlled by PORT register at device Reset

(tri-stated)

0 = PWM module pins controlled by PWM module at device Reset

(configured as output pins)

HPOL FPOR Immediate Motor Control PWM High Side Polarity bit

1 = PWM module high side output pins have active-high output polarity

0 = PWM module high side output pins have active-low output polarity

LPOL FPOR Immediate Motor Control PWM Low Side Polarity bit

1 = PWM module low side output pins have active-high output polarity

0 = PWM module low side output pins have active-low output polarity

FPWRT<2:0> FPOR Immediate Power-on Reset Timer Value Select bits

111 = PWRT = 128 ms

110 = PWRT = 64 ms

101 = PWRT = 32 ms

100 = PWRT = 16 ms

011 = PWRT = 8 ms

010 = PWRT = 4 ms

001 = PWRT = 2 ms

000 = PWRT = Disabled

ALTI2C FPOR Immediate Alternate I2C™ pins

1 = I2C mapped to SDA1/SCL1 pins

0 = I2C mapped to ASDA1/ASCL1 pins

JTAGEN FICD Immediate JTAG Enable bit

1 = JTAG enabled

0 = JTAG disabled

ICS<1:0> FICD Immediate ICD Communication Channel Select bits

11 = Communicate on PGEC1 and PGED1

10 = Communicate on PGEC2 and PGED2

01 = Communicate on PGEC3 and PGED3

00 = Reserved, do not use

TABLE 28-2: dsPIC33F CONFIGURATION BITS DESCRIPTION (CONTINUED)

Bit Field Register RTSP Effect Description

Note 1: This Configuration register is not available on dsPIC33FJ32MC302/304 devices.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28.2 On-Chip Voltage Regulator

All of the dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 devices power their core digital logic at a nominal

2.5V. This can create a conflict for designs that are

required to operate at a higher typical voltage, such as

3.3V. To simplify system design, all devices in the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 family incorporate an

on-chip regulator that allows the device to run its core

logic from VDD.

The regulator provides power to the core from the other

VDD pins. When the regulator is enabled, a low-ESR

(less than 5 Ohms) capacitor (such as tantalum or

ceramic) must be connected to the VCAP pin

(Figure 28-1). This helps to maintain the stability of the

regulator. The recommended value for the filter

capacitor is provided in Table 31-13 located in

Section 31.0 “Electrical Characteristics”.

On a POR, it takes approximately 20 μs for the on-chip

voltage regulator to generate an output voltage. During

this time, designated as TSTARTUP, code execution is

disabled. TSTARTUP is applied every time the device

resumes operation after any power-down.

FIGURE 28-1: CONNECTIONS FOR THE

ON-CHIP VOLTAGE

REGULATOR(1,2,3)

28.3 Brown-Out Reset (BOR)

The Brown-out Reset (BOR) module is based on an

internal voltage reference circuit that monitors the

regulated supply voltage VCAP. The main purpose of

the BOR module is to generate a device Reset when a

brown-out condition occurs. Brown-out conditions are

generally caused by glitches on the AC mains (for

example, missing portions of the AC cycle waveform

due to bad power transmission lines, or voltage sags

due to excessive current draw when a large inductive

load is turned on).

A BOR generates a Reset pulse, which resets the

device. The BOR selects the clock source, based on

the device Configuration bit values (FNOSC<2:0> and

POSCMD<1:0>).

If an oscillator mode is selected, the BOR activates the

Oscillator Start-up Timer (OST). The system clock is

held until OST expires. If the PLL is used, the clock is

held until the LOCK bit (OSCCON<5>) is ‘1’.

Concurrently, the PWRT time-out (TPWRT) is applied

before the internal Reset is released. If TPWRT = 0 and

a crystal oscillator is being used, then a nominal delay

of TFSCM = 100 is applied. The total delay in this case

is TFSCM.

The BOR Status bit (RCON<1>) is set to indicate that a

BOR has occurred. The BOR circuit, if enabled,

continues to operate while in Sleep or Idle modes and

resets the device should VDD fall below the BOR

threshold voltage.

Note: It is important for the low-ESR capacitor to

be placed as close as possible to the VCAP

pin.

Note 1: These are typical operating voltages. Refer to

Table 31-13 located in Section 31.1 “DC

Characteristics” for the full operating ranges

of VDD and VCAP.

2: It is important for the low-ESR capacitor to be

placed as close as possible to the VCAP pin.

3: Typical VCAP pin voltage = 2.5V when

VDD ≥ VDDMIN.

VDD

VCAP

VSS

dsPIC33F

CEFC

3.3V

10 µF

Tantalum

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28.4 Watchdog Timer (WDT)

For dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices, the WDT

is driven by the LPRC oscillator. When the WDT is

enabled, the clock source is also enabled.

28.4.1 PRESCALER/POSTSCALER

The nominal WDT clock source from LPRC is 32 kHz.

This feeds a prescaler than can be configured for either

5-bit (divide-by-32) or 7-bit (divide-by-128) operation.

The prescaler is set by the WDTPRE Configuration bit.

With a 32 kHz input, the prescaler yields a nominal

WDT time-out period (TWDT) of 1 ms in 5-bit mode, or

4 ms in 7-bit mode.

A variable postscaler divides down the WDT prescaler

output and allows for a wide range of time-out periods.

The postscaler is controlled by the WDTPOST<3:0>

Configuration bits (FWDT<3:0>), which allow the selec-

tion of 16 settings, from 1:1 to 1:32,768. Using the pres-

caler and postscaler, time-out periods ranging from

1 ms to 131 seconds can be achieved.

The WDT, prescaler and postscaler are reset:

• On any device Reset

• On the completion of a clock switch, whether

invoked by software (i.e., setting the OSWEN bit

after changing the NOSC bits) or by hardware

(i.e., Fail-Safe Clock Monitor)

• When a PWRSAV instruction is executed

(i.e., Sleep or Idle mode is entered)

• When the device exits Sleep or Idle mode to

resume normal operation

•By a CLRWDT instruction during normal execution

28.4.2 SLEEP AND IDLE MODES

If the WDT is enabled, it continues to run during Sleep or

Idle modes. When the WDT time-out occurs, the device

wakes the device and code execution continues from

where the PWRSAV instruction was executed. The

corresponding SLEEP or IDLE bit (RCON<3,2>) needs to

be cleared in software after the device wakes up.

28.4.3 ENABLING WDT

The WDT is enabled or disabled by the FWDTEN

Configuration bit in the FWDT Configuration register.

When the FWDTEN Configuration bit is set, the WDT is

always enabled.

The WDT can be optionally controlled in software

when the FWDTEN Configuration bit has been

programmed to ‘0’. The WDT is enabled in software

by setting the SWDTEN control bit (RCON<5>). The

SWDTEN control bit is cleared on any device Reset.

The software WDT option allows the user application

to enable the WDT for critical code segments and

disable the WDT during non-critical segments for

maximum power savings.

The WDT flag bit, WDTO (RCON<4>), is not automatically

cleared following a WDT time-out. To detect subsequent

WDT events, the flag must be cleared in software.

FIGURE 28-2: WDT BLOCK DIAGRAM

Note: The CLRWDT and PWRSAV instructions

clear the prescaler and postscaler counts

when executed.

Note: If the WINDIS bit (FWDT<6>) is cleared,

the CLRWDT instruction should be executed

by the application software only during the

last 1/4 of the WDT period. This CLRWDT

window can be determined by using a timer.

If a CLRWDT instruction is executed before

this window, a WDT Reset occurs.

All Device Resets

Transition to New Clock Source

Exit Sleep or Idle Mode

PWRSAV Instruction

CLRWDT Instruction

WDTPRE WDTPOST<3:0>

Watchdog Timer

Prescaler

(divide by N1)

Postscaler

(divide by N2)

Sleep/Idle

WDT

WDT Window Select

WINDIS

WDT

CLRWDT Instruction

SWDTEN

FWDTEN

LPRC Clock

RS RS

Wake-up

Reset

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28.5 JTAG Interface

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices

implement a JTAG interface, which supports boundary

scan device testing, as well as in-circuit programming.

Detailed information on this interface is provided in

future revisions of the document.

28.6 In-Circuit Serial Programming

The dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/

X04 and dsPIC33FJ128MCX02/X04 devices can be

serially programmed while in the end application circuit.

This is done with two lines for clock and data and three

other lines for power, ground and the programming

sequence. Serial programming allows customers to

manufacture boards with unprogrammed devices and

then program the digital signal controller just before

shipping the product. Serial programming also allows

the most recent firmware or a custom firmware to be

programmed. Refer to the “dsPIC33F/PIC24H Flash

Programming Specification” (DS70152) for details

about In-Circuit Serial Programming (ICSP).

Any of the three pairs of programming clock/data pins

can be used:

• PGEC1 and PGED1

• PGEC2 and PGED2

• PGEC3 and PGED3

28.7 In-Circuit Debugger

When MPLAB® ICD 3 is selected as a debugger, the

in-circuit debugging functionality is enabled. This

function allows simple debugging functions when used

with MPLAB IDE. Debugging functionality is controlled

through the PGECx (Emulation/Debug Clock) and

PGEDx (Emulation/Debug Data) pin functions.

Any of the three pairs of debugging clock/data pins can

be used:

• PGEC1 and PGED1

• PGEC2 and PGED2

• PGEC3 and PGED3

To use the in-circuit debugger function of the device,

the design must implement ICSP connections to

MCLR, VDD, VSS, PGC, PGD and the PGECx/PGEDx

pin pair. In addition, when the feature is enabled, some

of the resources are not available for general use.

These resources include the first 80 bytes of data RAM

and two I/O pins.

28.8 Code Protection and CodeGuard

Security

The dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 devices offer advanced

implementation of CodeGuard Security that supports

BS, SS and GS while, the dsPIC33FJ32MC302/304

devices offer the intermediate level of CodeGuard

Security that supports only BS and GS. CodeGuard

Security enables multiple parties to securely share

resources (memory, interrupts and peripherals) on a

single chip. This feature helps protect individual

Intellectual Property in collaborative system designs.

When coupled with software encryption libraries,

CodeGuard Security can be used to securely update

Flash even when multiple IPs reside on the single chip.

The code protection features vary depending on the

actual dsPIC33F implemented. The following sections

provide an overview of these features.

Secure segment and RAM protection is implemented

on the dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 devices. The

dsPIC33FJ32MC302/304 devices do not support

secure segment and RAM protection.

Note: Refer to Section 24. “Programming and

Diagnostics” (DS70207) of the

dsPIC33F/PIC24H Family Reference

Manual for further information on usage,

configuration and operation of the JTAG

interface.

Note: Refer to Section 23. “CodeGuard™

Security” (DS70199) of the “dsPIC33F/

PIC24H Family Reference Manual” for

further information on usage,

configuration and operation of

CodeGuard Security.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 28-3: CODE FLASH SECURITY SEGMENT SIZES FOR 32 KB DEVICES

CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K

SSS<2:0> = x11

0057FEh

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

001FFEh

002000h

GS = 11008 IW

0157FEh

0057FEh

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

001FFEh

002000h

0157FEh

GS = 10240 IW

BS = 768 IW

VS = 256 IW

GS = 7168 IW

BS = 3840 IW

0057FEh

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 3072 IW

BS = 7936 IW

0057FEh

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

001FFEh

002000h

0157FEh

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 28-4: CODE FLASH SECURITY SEGMENT SIZES FOR 64 KB DEVICES

CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K

SSS<2:0> = x11

SSS<2:0> = x10

SSS<2:0> = x01

SSS<2:0> = x00

16K

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00ABFEh

001FFEh

002000h

GS = 21760 IW

0157FEh

VS = 256 IW

GS = 20992 IW

BS = 768 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 17920 IW

BS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 17920 IW

SS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 17920 IW

BS = 768 IW

SS = 3072 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 17920 IW

BS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

SS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

BS = 768 IW

SS = 7168 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

BS = 3840 IW

SS = 4096 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 13824 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 5632 IW

SS = 16128 IW 007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 5632 IW

BS = 768 IW

SS = 15360 IW 007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 5632 IW

BS = 3840 IW

SS = 12288 IW 007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

VS = 256 IW

GS = 5632 IW

BS = 7936 IW

SS = 8192 IW 007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 28-5: CODE FLASH SECURITY SEGMENT SIZES FOR 128 KB DEVICES

CONFIG BITS BSS<2:0> = x11 0K BSS<2:0> = x10 1K BSS<2:0> = x01 4K BSS<2:0> = x00 8K

SSS<2:0> = x11

SSS<2:0> = x10

SSS<2:0> = x01

SSS<2:0> = x00

16K

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 43776 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 43008 IW

BS = 768 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 39936 IW

BS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 35840 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

GS = 39936 IW

SS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

GS = 39936 IW

BS = 768 IW

SS = 3072 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

GS = 39936 IW

BS = 3840 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00ABFEh

001FFEh

002000h

0157FEh

GS = 35840 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 35840 IW

SS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 35840 IW

BS = 768 IW

SS = 7168 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 35840 IW

BS = 3840 IW

SS = 4096 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 35840 IW

BS = 7936 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 27648 IW

SS = 16128 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 27648 IW

BS = 768 IW

SS = 15360 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 27648 IW

BS = 3840 IW

SS = 12288 IW

007FFEh

008000h

003FFEh

004000h

0001FEh

000200h

000000h

VS = 256 IW

0007FEh

000800h

00FFFEh

010000h

001FFEh

002000h

0157FEh

GS = 27648 IW

BS = 7936 IW

SS = 8192 IW

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

29.0 INSTRUCTION SET SUMMARY

The dsPIC33F instruction set is identical to that of the

dsPIC30F.

Most instructions are a single program memory word

(24 bits). Only three instructions require two program

memory locations.

Each single-word instruction is a 24-bit word, divided

into an 8-bit opcode, which specifies the instruction

type and one or more operands, which further specify

the operation of the instruction.

The instruction set is highly orthogonal and is grouped

into five basic categories:

• Word or byte-oriented operations

• Bit-oriented operations

• Literal operations

• DSP operations

• Control operations

Table 29-1 shows the general symbols used in

describing the instructions.

The dsPIC33F instruction set summary in Table 29-2

lists all the instructions, along with the status flags

affected by each instruction.

Most word or byte-oriented W register instructions

(including barrel shift instructions) have three

operands:

• The first source operand, which is typically a

• The second source operand, which is typically a

• The destination of the result, which is typically a

However, word or byte-oriented file register instructions

have two operands:

• The file register specified by the value ‘f’

• The destination, which could be either the file

‘WREG’

Most bit-oriented instructions (including simple rotate/

shift instructions) have two operands:

• The W register (with or without an address

modifier) or file register (specified by the value of

‘Ws’ or ‘f’)

• The bit in the W register or file register (specified

by a literal value or indirectly by the contents of

The literal instructions that involve data movement can

use some of the following operands:

• A literal value to be loaded into a W register or file

• The W register or file register where the literal

value is to be loaded (specified by ‘Wb’ or ‘f’)

However, literal instructions that involve arithmetic or

logical operations use some of the following operands:

• The first source operand, which is a register ‘Wb’

without any address modifier

• The second source operand, which is a literal

value

• The destination of the result (only if not the same

as the first source operand), which is typically a

The MAC class of DSP instructions can use some of the

following operands:

• The accumulator (A or B) to be used (required

operand)

• The W registers to be used as the two operands

• The X and Y address space prefetch operations

• The X and Y address space prefetch destinations

• The accumulator write back destination

The other DSP instructions do not involve any

multiplication and can include:

• The accumulator to be used (required)

• The source or destination operand (designated as

Wso or Wdo, respectively) with or without an

address modifier

• The amount of shift specified by a W register ‘Wn’

or a literal value

The control instructions can use some of the following

operands:

• A program memory address

• The mode of the table read and table write

instructions

Note: This data sheet summarizes the

features of the dsPIC33FJ32MC302/

304, dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 family of

devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to the “dsPIC33F/PIC24H

Family Reference Manual”. Please see

the Microchip web site

(www.microchip.com) for the latest

dsPIC33F/PIC24H Family Reference

Manual sections.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Most instructions are a single word. Certain

double-word instructions are designed to provide all the

required information in these 48 bits. In the second

word, the 8 MSbs are ‘0’s. If this second word is

executed as an instruction (by itself), it executes as a

NOP.

The double-word instructions execute in two instruction

cycles.

Most single-word instructions are executed in a single

instruction cycle, unless a conditional test is true, or the

program counter is changed as a result of the

instruction. In these cases, the execution takes two

instruction cycles with the additional instruction cycle(s)

executed as a NOP. Notable exceptions are the BRA

(unconditional/computed branch), indirect CALL/GOTO,

all table reads and writes and RETURN/RETFIE

instructions, which are single-word instructions but take

two or three cycles. Certain instructions that involve

skipping over the subsequent instruction require either

two or three cycles if the skip is performed, depending

on whether the instruction being skipped is a single-word

or two-word instruction. Moreover, double-word moves

require two cycles.

Note: For more details on the instruction set,

refer to the “16-bit MCU and DSC

Programmer’s Reference Manual”

(DS70157).

TABLE 29-1: SYMBOLS USED IN OPCODE DESCRIPTIONS

Field Description

#text Means literal defined by “text”

(text) Means “content of text”

[text] Means “the location addressed by text”

{ } Optional field or operation

<n:m> Register bit field

.b Byte mode selection

.d Double-Word mode selection

.S Shadow register select

.w Word mode selection (default)

Acc One of two accumulators {A, B}

AWB Accumulator write back destination address register ∈ {W13, [W13]+ = 2}

bit4 4-bit bit selection field (used in word addressed instructions) ∈ {0...15}

C, DC, N, OV, Z MCU Status bits: Carry, Digit Carry, Negative, Overflow, Sticky Zero

Expr Absolute address, label or expression (resolved by the linker)

f File register address ∈ {0x0000...0x1FFF}

lit1 1-bit unsigned literal ∈ {0,1}

lit4 4-bit unsigned literal ∈ {0...15}

lit5 5-bit unsigned literal ∈ {0...31}

lit8 8-bit unsigned literal ∈ {0...255}

lit10 10-bit unsigned literal ∈ {0...255} for Byte mode, {0:1023} for Word mode

lit14 14-bit unsigned literal ∈ {0...16384}

lit16 16-bit unsigned literal ∈ {0...65535}

lit23 23-bit unsigned literal ∈ {0...8388608}; LSb must be ‘0’

None Field does not require an entry, can be blank

OA, OB, SA, SB DSP Status bits: ACCA Overflow, ACCB Overflow, ACCA Saturate, ACCB Saturate

PC Program Counter

Slit10 10-bit signed literal ∈ {-512...511}

Slit16 16-bit signed literal ∈ {-32768...32767}

Slit6 6-bit signed literal ∈ {-16...16}

Wb Base W register ∈ {W0...W15}

Wd Destination W register ∈ { Wd, [Wd], [Wd++], [Wd--], [++Wd], [--Wd] }

Wdo Destination W register ∈

{ Wnd, [Wnd], [Wnd++], [Wnd--], [++Wnd], [--Wnd], [Wnd+Wb] }

Wm,Wn Dividend, Divisor working register pair (direct addressing)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Wm*Wm Multiplicand and Multiplier working register pair for Square instructions ∈

{W4 * W4,W5 * W5,W6 * W6,W7 * W7}

Wm*Wn Multiplicand and Multiplier working register pair for DSP instructions ∈

{W4 * W5,W4 * W6,W4 * W7,W5 * W6,W5 * W7,W6 * W7}

Wn One of 16 working registers ∈ {W0...W15}

Wnd One of 16 destination working registers ∈ {W0...W15}

Wns One of 16 source working registers ∈ {W0...W15}

WREG W0 (working register used in file register instructions)

Ws Source W register ∈ { Ws, [Ws], [Ws++], [Ws--], [++Ws], [--Ws] }

Wso Source W register ∈

{ Wns, [Wns], [Wns++], [Wns--], [++Wns], [--Wns], [Wns+Wb] }

Wx X data space prefetch address register for DSP instructions

∈{[W8] + = 6, [W8] + = 4, [W8] + = 2, [W8], [W8] - = 6, [W8] - = 4, [W8] - = 2,

[W9] + = 6, [W9] + = 4, [W9] + = 2, [W9], [W9] - = 6, [W9] - = 4, [W9] - = 2,

[W9 + W12], none}

Wxd X data space prefetch destination register for DSP instructions ∈ {W4...W7}

Wy Y data space prefetch address register for DSP instructions

∈{[W10] + = 6, [W10] + = 4, [W10] + = 2, [W10], [W10] - = 6, [W10] - = 4, [W10] - = 2,

[W11] + = 6, [W11] + = 4, [W11] + = 2, [W11], [W11] - = 6, [W11] - = 4, [W11] - = 2,

[W11 + W12], none}

Wyd Y data space prefetch destination register for DSP instructions ∈ {W4...W7}

TABLE 29-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED)

Field Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 29-2: INSTRUCTION SET OVERVIEW

Base

Instr

Assembly

Mnemonic Assembly Syntax Description # of

Words

# of

Cycles

Status Flags

Affected

1ADD ADD Acc Add Accumulators 1 1 OA,OB,SA,SB

ADD f f = f + WREG 1 1 C,DC,N,OV,Z

ADD f,WREG WREG = f + WREG 1 1 C,DC,N,OV,Z

ADD #lit10,Wn Wd = lit10 + Wd 1 1 C,DC,N,OV,Z

ADD Wb,Ws,Wd Wd = Wb + Ws 1 1 C,DC,N,OV,Z

ADD Wb,#lit5,Wd Wd = Wb + lit5 1 1 C,DC,N,OV,Z

ADD Wso,#Slit4,Acc 16-bit Signed Add to Accumulator 1 1 OA,OB,SA,SB

2ADDC ADDC f f = f + WREG + (C) 1 1 C,DC,N,OV,Z

ADDC f,WREG WREG = f + WREG + (C) 1 1 C,DC,N,OV,Z

ADDC #lit10,Wn Wd = lit10 + Wd + (C) 1 1 C,DC,N,OV,Z

ADDC Wb,Ws,Wd Wd = Wb + Ws + (C) 1 1 C,DC,N,OV,Z

ADDC Wb,#lit5,Wd Wd = Wb + lit5 + (C) 1 1 C,DC,N,OV,Z

3AND AND f f = f .AND. WREG 1 1 N,Z

AND f,WREG WREG = f .AND. WREG 1 1 N,Z

AND #lit10,Wn Wd = lit10 .AND. Wd 1 1 N,Z

AND Wb,Ws,Wd Wd = Wb .AND. Ws 1 1 N,Z

AND Wb,#lit5,Wd Wd = Wb .AND. lit5 1 1 N,Z

4ASR ASR f f = Arithmetic Right Shift f 1 1 C,N,OV,Z

ASR f,WREG WREG = Arithmetic Right Shift f 1 1 C,N,OV,Z

ASR Ws,Wd Wd = Arithmetic Right Shift Ws 1 1 C,N,OV,Z

ASR Wb,Wns,Wnd Wnd = Arithmetic Right Shift Wb by Wns 1 1 N,Z

ASR Wb,#lit5,Wnd Wnd = Arithmetic Right Shift Wb by lit5 1 1 N,Z

5BCLR BCLR f,#bit4 Bit Clear f 1 1

None

BCLR Ws,#bit4 Bit Clear Ws 1 1 None

6BRA BRA C,Expr Branch if Carry 1 1 (2)

None

BRA GE,Expr Branch if greater than or equal 1 1 (2)

None

BRA GEU,Expr Branch if unsigned greater than or equal 1 1 (2)

None

BRA GT,Expr Branch if greater than 1 1 (2)

None

BRA GTU,Expr Branch if unsigned greater than 1 1 (2)

None

BRA LE,Expr Branch if less than or equal 1 1 (2)

None

BRA LEU,Expr Branch if unsigned less than or equal 1 1 (2)

None

BRA LT,Expr Branch if less than 1 1 (2)

None

BRA LTU,Expr Branch if unsigned less than 1 1 (2)

None

BRA N,Expr Branch if Negative 1 1 (2)

None

BRA NC,Expr Branch if Not Carry 1 1 (2)

None

BRA NN,Expr Branch if Not Negative 1 1 (2)

None

BRA NOV,Expr Branch if Not Overflow 1 1 (2)

None

BRA NZ,Expr Branch if Not Zero 1 1 (2)

None

BRA OA,Expr Branch if Accumulator A overflow 1 1 (2)

None

BRA OB,Expr Branch if Accumulator B overflow 1 1 (2)

None

BRA OV,Expr Branch if Overflow 1 1 (2)

None

BRA SA,Expr Branch if Accumulator A saturated 1 1 (2)

None

BRA SB,Expr Branch if Accumulator B saturated 1 1 (2)

None

BRA Expr Branch Unconditionally 1 2

None

BRA Z,Expr Branch if Zero 1 1 (2)

None

BRA Wn Computed Branch 1 2

None

7BSET BSET f,#bit4 Bit Set f 1 1

None

BSET Ws,#bit4 Bit Set Ws 1 1

None

8BSW BSW.C Ws,Wb Write C bit to Ws<Wb> 1 1

None

BSW.Z Ws,Wb Write Z bit to Ws<Wb> 1 1

None

9BTG BTG f,#bit4 Bit Toggle f 1 1

None

BTG Ws,#bit4 Bit Toggle Ws 1 1

None

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

10 BTSC BTSC f,#bit4 Bit Test f, Skip if Clear 1 1

(2 or 3)

None

BTSC Ws,#bit4 Bit Test Ws, Skip if Clear 1 1

(2 or 3)

None

11 BTSS BTSS f,#bit4 Bit Test f, Skip if Set 1 1

(2 or 3)

None

BTSS Ws,#bit4 Bit Test Ws, Skip if Set 1 1

(2 or 3)

None

12 BTST BTST f,#bit4 Bit Test f 1 1 Z

BTST.C Ws,#bit4 Bit Test Ws to C 1 1 C

BTST.Z Ws,#bit4 Bit Test Ws to Z 1 1 Z

BTST.C Ws,Wb Bit Test Ws<Wb> to C 1 1 C

BTST.Z Ws,Wb Bit Test Ws<Wb> to Z 1 1 Z

13 BTSTS BTSTS f,#bit4 Bit Test then Set f 1 1 Z

BTSTS.C Ws,#bit4 Bit Test Ws to C, then Set 1 1 C

BTSTS.Z Ws,#bit4 Bit Test Ws to Z, then Set 1 1 Z

14 CALL CALL lit23 Call subroutine 2 2

None

CALL Wn Call indirect subroutine 1 2

None

15 CLR CLR f f = 0x0000 1 1

None

CLR WREG WREG = 0x0000 1 1

None

CLR Ws Ws = 0x0000 1 1

None

CLR Acc,Wx,Wxd,Wy,Wyd,AWB Clear Accumulator 1 1 OA,OB,SA,SB

16 CLRWDT CLRWDT Clear Watchdog Timer 1 1

WDTO,Sleep

17 COM COM f f = f 11 N,Z

COM f,WREG WREG = f 11 N,Z

COM Ws,Wd Wd = Ws 11 N,Z

18 CP CP f Compare f with WREG 1 1 C,DC,N,OV,Z

CP Wb,#lit5 Compare Wb with lit5 1 1 C,DC,N,OV,Z

CP Wb,Ws Compare Wb with Ws (Wb – Ws) 1 1 C,DC,N,OV,Z

19 CP0 CP0 f Compare f with 0x0000 1 1 C,DC,N,OV,Z

CP0 Ws Compare Ws with 0x0000 1 1 C,DC,N,OV,Z

20 CPB CPB f Compare f with WREG, with Borrow 1 1 C,DC,N,OV,Z

CPB Wb,#lit5 Compare Wb with lit5, with Borrow 1 1 C,DC,N,OV,Z

CPB Wb,Ws Compare Wb with Ws, with Borrow

(Wb – Ws – C)

1 1 C,DC,N,OV,Z

21 CPSEQ CPSEQ Wb, Wn Compare Wb with Wn, skip if = 1 1

(2 or 3)

None

22 CPSGT CPSGT Wb, Wn Compare Wb with Wn, skip if > 1 1

(2 or 3)

None

23 CPSLT CPSLT Wb, Wn Compare Wb with Wn, skip if < 1 1

(2 or 3)

None

24 CPSNE CPSNE Wb, Wn Compare Wb with Wn, skip if ≠11

(2 or 3)

None

25 DAW DAW Wn Wn = decimal adjust Wn 1 1 C

26 DEC DEC f f = f – 1 1 1 C,DC,N,OV,Z

DEC f,WREG WREG = f – 1 1 1 C,DC,N,OV,Z

DEC Ws,Wd Wd = Ws – 1 1 1 C,DC,N,OV,Z

27 DEC2 DEC2 f f = f – 2 1 1 C,DC,N,OV,Z

DEC2 f,WREG WREG = f – 2 1 1 C,DC,N,OV,Z

DEC2 Ws,Wd Wd = Ws – 2 1 1 C,DC,N,OV,Z

28 DISI DISI #lit14 Disable Interrupts for k instruction cycles 1 1

None

TABLE 29-2: INSTRUCTION SET OVERVIEW (CONTINUED)

Base

Instr

Assembly

Mnemonic Assembly Syntax Description # of

Words

# of

Cycles

Status Flags

Affected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

29 DIV DIV.S Wm,Wn Signed 16/16-bit Integer Divide 1 18 N,Z,C,OV

DIV.SD Wm,Wn Signed 32/16-bit Integer Divide 1 18 N,Z,C,OV

DIV.U Wm,Wn Unsigned 16/16-bit Integer Divide 1 18 N,Z,C,OV

DIV.UD Wm,Wn Unsigned 32/16-bit Integer Divide 1 18 N,Z,C,OV

30 DIVF DIVF Wm,Wn Signed 16/16-bit Fractional Divide 1 18 N,Z,C,OV

31 DO DO #lit14,Expr Do code to PC + Expr, lit14 + 1 times 2 2

None

DO Wn,Expr Do code to PC + Expr, (Wn) + 1 times 2 2

None

32 ED ED Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance (no accumulate) 1 1 OA,OB,OAB,

SA,SB,SAB

33 EDAC EDAC Wm*Wm,Acc,Wx,Wy,Wxd Euclidean Distance 1 1 OA,OB,OAB,

SA,SB,SAB

34 EXCH EXCH Wns,Wnd Swap Wns with Wnd 1 1

None

35 FBCL FBCL Ws,Wnd Find Bit Change from Left (MSb) Side 1 1 C

36 FF1L FF1L Ws,Wnd Find First One from Left (MSb) Side 1 1 C

37 FF1R FF1R Ws,Wnd Find First One from Right (LSb) Side 1 1 C

38 GOTO GOTO Expr Go to address 2 2

None

GOTO Wn Go to indirect 1 2

None

39 INC INC f f = f + 1 1 1 C,DC,N,OV,Z

INC f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z

INC Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z

40 INC2 INC2 f f = f + 2 1 1 C,DC,N,OV,Z

INC2 f,WREG WREG = f + 2 1 1 C,DC,N,OV,Z

INC2 Ws,Wd Wd = Ws + 2 1 1 C,DC,N,OV,Z

41 IOR IOR f f = f .IOR. WREG 1 1 N,Z

IOR f,WREG WREG = f .IOR. WREG 1 1 N,Z

IOR #lit10,Wn Wd = lit10 .IOR. Wd 1 1 N,Z

IOR Wb,Ws,Wd Wd = Wb .IOR. Ws 1 1 N,Z

IOR Wb,#lit5,Wd Wd = Wb .IOR. lit5 1 1 N,Z

42 LAC LAC Wso,#Slit4,Acc Load Accumulator 1 1 OA,OB,OAB,

SA,SB,SAB

43 LNK LNK #lit14 Link Frame Pointer 1 1 None

44 LSR LSR f f = Logical Right Shift f 1 1 C,N,OV,Z

LSR f,WREG WREG = Logical Right Shift f 1 1 C,N,OV,Z

LSR Ws,Wd Wd = Logical Right Shift Ws 1 1 C,N,OV,Z

LSR Wb,Wns,Wnd Wnd = Logical Right Shift Wb by Wns 1 1 N,Z

LSR Wb,#lit5,Wnd Wnd = Logical Right Shift Wb by lit5 1 1 N,Z

45 MAC MAC Wm*Wn,Acc,Wx,Wxd,Wy,Wyd

AWB

Multiply and Accumulate 1 1 OA,OB,OAB,

SA,SB,SAB

MAC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd Square and Accumulate 1 1 OA,OB,OAB,

SA,SB,SAB

46 MOV MOV f,Wn Move f to Wn 1 1 None

MOV f Move f to f 1 1

None

MOV f,WREG Move f to WREG 1 1

N,Z

MOV #lit16,Wn Move 16-bit literal to Wn 1 1 None

MOV.b #lit8,Wn Move 8-bit literal to Wn 1 1 None

MOV Wn,f Move Wn to f 1 1 None

MOV Wso,Wdo Move Ws to Wd 1 1 None

MOV WREG,f Move WREG to f 1 1

None

MOV.D Wns,Wd Move Double from W(ns):W(ns + 1) to Wd 1 2 None

MOV.D Ws,Wnd Move Double from Ws to W(nd + 1):W(nd) 1 2 None

47 MOVSAC MOVSAC Acc,Wx,Wxd,Wy,Wyd,AWB Prefetch and store accumulator 1 1 None

TABLE 29-2: INSTRUCTION SET OVERVIEW (CONTINUED)

Base

Instr

Assembly

Mnemonic Assembly Syntax Description # of

Words

# of

Cycles

Status Flags

Affected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

48 MPY MPY

Wm*Wn,Acc,Wx,Wxd,Wy,Wyd

Multiply Wm by Wn to Accumulator 1 1 OA,OB,OAB,

SA,SB,SAB

MPY

Wm*Wm,Acc,Wx,Wxd,Wy,Wyd

Square Wm to Accumulator 1 1 OA,OB,OAB,

SA,SB,SAB

49 MPY.N MPY.N

Wm*Wn,Acc,Wx,Wxd,Wy,Wyd

-(Multiply Wm by Wn) to Accumulator 1 1 None

50 MSC MSC Wm*Wm,Acc,Wx,Wxd,Wy,Wyd

AWB

Multiply and Subtract from Accumulator 1 1 OA,OB,OAB,

SA,SB,SAB

51 MUL MUL.SS Wb,Ws,Wnd {Wnd + 1, Wnd} = signed(Wb) * signed(Ws) 1 1 None

MUL.SU Wb,Ws,Wnd {Wnd + 1, Wnd} = signed(Wb) * unsigned(Ws) 1 1 None

MUL.US Wb,Ws,Wnd {Wnd + 1, Wnd} = unsigned(Wb) * signed(Ws) 1 1 None

MUL.UU Wb,Ws,Wnd {Wnd + 1, Wnd} = unsigned(Wb) *

unsigned(Ws)

1 1 None

MUL.SU Wb,#lit5,Wnd {Wnd + 1, Wnd} = signed(Wb) * unsigned(lit5) 1 1 None

MUL.UU Wb,#lit5,Wnd {Wnd + 1, Wnd} = unsigned(Wb) *

unsigned(lit5)

1 1 None

MUL f W3:W2 = f * WREG 1 1 None

52 NEG NEG Acc Negate Accumulator 1 1 OA,OB,OAB,

SA,SB,SAB

NEG f f = f + 1 1 1 C,DC,N,OV,Z

NEG f,WREG WREG = f + 1 1 1 C,DC,N,OV,Z

NEG Ws,Wd Wd = Ws + 1 1 1 C,DC,N,OV,Z

53 NOP NOP No Operation 1 1

None

NOPR No Operation 1 1

None

54 POP POP f Pop f from Top-of-Stack (TOS) 1 1

None

POP Wdo Pop from Top-of-Stack (TOS) to Wdo 1 1

None

POP.D Wnd Pop from Top-of-Stack (TOS) to

W(nd):W(nd + 1)

None

POP.S Pop Shadow Registers 1 1 All

55 PUSH PUSH f Push f to Top-of-Stack (TOS) 1 1

None

PUSH Wso Push Wso to Top-of-Stack (TOS) 1 1

None

PUSH.D Wns Push W(ns):W(ns + 1) to Top-of-Stack (TOS) 1 2

None

PUSH.S Push Shadow Registers 1 1

None

56 PWRSAV PWRSAV #lit1 Go into Sleep or Idle mode 1 1

WDTO,Sleep

57 RCALL RCALL Expr Relative Call 1 2

None

RCALL Wn Computed Call 1 2

None

58 REPEAT REPEAT #lit14 Repeat Next Instruction lit14 + 1 times 1 1

None

REPEAT Wn Repeat Next Instruction (Wn) + 1 times 1 1

None

59 RESET RESET Software device Reset 1 1

None

60 RETFIE RETFIE Return from interrupt 1 3 (2)

None

61 RETLW RETLW #lit10,Wn Return with literal in Wn 1 3 (2)

None

62 RETURN RETURN Return from Subroutine 1 3 (2)

None

63 RLC RLC f f = Rotate Left through Carry f 1 1

C,N,Z

RLC f,WREG WREG = Rotate Left through Carry f 1 1

C,N,Z

RLC Ws,Wd Wd = Rotate Left through Carry Ws 1 1

C,N,Z

64 RLNC RLNC f f = Rotate Left (No Carry) f 1 1

N,Z

RLNC f,WREG WREG = Rotate Left (No Carry) f 1 1

N,Z

RLNC Ws,Wd Wd = Rotate Left (No Carry) Ws 1 1

N,Z

65 RRC RRC f f = Rotate Right through Carry f 1 1

C,N,Z

RRC f,WREG WREG = Rotate Right through Carry f 1 1

C,N,Z

RRC Ws,Wd Wd = Rotate Right through Carry Ws 1 1

C,N,Z

TABLE 29-2: INSTRUCTION SET OVERVIEW (CONTINUED)

Base

Instr

Assembly

Mnemonic Assembly Syntax Description # of

Words

# of

Cycles

Status Flags

Affected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

66 RRNC RRNC f f = Rotate Right (No Carry) f 1 1

N,Z

RRNC f,WREG WREG = Rotate Right (No Carry) f 1 1

N,Z

RRNC Ws,Wd Wd = Rotate Right (No Carry) Ws 1 1

N,Z

67 SAC SAC Acc,#Slit4,Wdo Store Accumulator 1 1 None

SAC.R Acc,#Slit4,Wdo Store Rounded Accumulator 1 1 None

68 SE SE Ws,Wnd Wnd = sign-extended Ws 1 1 C,N,Z

69 SETM SETM f f = 0xFFFF 1 1 None

SETM WREG WREG = 0xFFFF 1 1 None

SETM Ws Ws = 0xFFFF 1 1 None

70 SFTAC SFTAC Acc,Wn Arithmetic Shift Accumulator by (Wn) 1 1 OA,OB,OAB,

SA,SB,SAB

SFTAC Acc,#Slit6 Arithmetic Shift Accumulator by Slit6 1 1 OA,OB,OAB,

SA,SB,SAB

71 SL SL f f = Left Shift f 1 1 C,N,OV,Z

SL f,WREG WREG = Left Shift f 1 1 C,N,OV,Z

SL Ws,Wd Wd = Left Shift Ws 1 1 C,N,OV,Z

SL Wb,Wns,Wnd Wnd = Left Shift Wb by Wns 1 1 N,Z

SL Wb,#lit5,Wnd Wnd = Left Shift Wb by lit5 1 1 N,Z

72 SUB SUB Acc Subtract Accumulators 1 1 OA,OB,OAB,

SA,SB,SAB

SUB f f = f – WREG 1 1 C,DC,N,OV,Z

SUB f,WREG WREG = f – WREG 1 1 C,DC,N,OV,Z

SUB #lit10,Wn Wn = Wn – lit10 1 1 C,DC,N,OV,Z

SUB Wb,Ws,Wd Wd = Wb – Ws 1 1 C,DC,N,OV,Z

SUB Wb,#lit5,Wd Wd = Wb – lit5 1 1 C,DC,N,OV,Z

73 SUBB SUBB f f = f – WREG – (C) 1 1 C,DC,N,OV,Z

SUBB f,WREG WREG = f – WREG – (C) 1 1 C,DC,N,OV,Z

SUBB #lit10,Wn Wn = Wn – lit10 – (C) 1 1 C,DC,N,OV,Z

SUBB Wb,Ws,Wd Wd = Wb – Ws – (C) 1 1 C,DC,N,OV,Z

SUBB Wb,#lit5,Wd Wd = Wb – lit5 – (C) 1 1 C,DC,N,OV,Z

74 SUBR SUBR f f = WREG – f 1 1 C,DC,N,OV,Z

SUBR f,WREG WREG = WREG – f 1 1 C,DC,N,OV,Z

SUBR Wb,Ws,Wd Wd = Ws – Wb 1 1 C,DC,N,OV,Z

SUBR Wb,#lit5,Wd Wd = lit5 – Wb 1 1 C,DC,N,OV,Z

75 SUBBR SUBBR f f = WREG – f – (C) 1 1 C,DC,N,OV,Z

SUBBR f,WREG WREG = WREG – f – (C) 1 1 C,DC,N,OV,Z

SUBBR Wb,Ws,Wd Wd = Ws – Wb – (C) 1 1 C,DC,N,OV,Z

SUBBR Wb,#lit5,Wd Wd = lit5 – Wb – (C) 1 1 C,DC,N,OV,Z

76 SWAP SWAP.b Wn Wn = nibble swap Wn 1 1 None

SWAP Wn Wn = byte swap Wn 1 1 None

77 TBLRDH TBLRDH Ws,Wd Read Prog<23:16> to Wd<7:0> 1 2 None

78 TBLRDL TBLRDL Ws,Wd Read Prog<15:0> to Wd 1 2 None

79 TBLWTH TBLWTH Ws,Wd Write Ws<7:0> to Prog<23:16> 1 2 None

80 TBLWTL TBLWTL Ws,Wd Write Ws to Prog<15:0> 1 2 None

81 ULNK ULNK Unlink Frame Pointer 1 1 None

82 XOR XOR f f = f .XOR. WREG 1 1 N,Z

XOR f,WREG WREG = f .XOR. WREG 1 1 N,Z

XOR #lit10,Wn Wd = lit10 .XOR. Wd 1 1 N,Z

XOR Wb,Ws,Wd Wd = Wb .XOR. Ws 1 1 N,Z

XOR Wb,#lit5,Wd Wd = Wb .XOR. lit5 1 1 N,Z

83 ZE ZE Ws,Wnd Wnd = Zero-extend Ws 1 1

C,Z,N

TABLE 29-2: INSTRUCTION SET OVERVIEW (CONTINUED)

Base

Instr

Assembly

Mnemonic Assembly Syntax Description # of

Words

# of

Cycles

Status Flags

Affected

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

30.0 DEVELOPMENT SUPPORT

The PIC® microcontrollers and dsPIC® digital signal

controllers are supported with a full range of software

and hardware development tools:

• Integrated Development Environment

- MPLAB® IDE Software

• Compilers/Assemblers/Linkers

- MPLAB C Compiler for Various Device

Families

- HI-TECH C for Various Device Families

- MPASMTM Assembler

-MPLINK

TM Object Linker/

MPLIBTM Object Librarian

- MPLAB Assembler/Linker/Librarian for

Various Device Families

• Simulators

- MPLAB SIM Software Simulator

• Emulators

- MPLAB REAL ICE™ In-Circuit Emulator

• In-Circuit Debuggers

- MPLAB ICD 3

- PICkit™ 3 Debug Express

• Device Programmers

- PICkit™ 2 Programmer

- MPLAB PM3 Device Programmer

• Low-Cost Demonstration/Development Boards,

Evaluation Kits, and Starter Kits

30.1 MPLAB Integrated Development

Environment Software

The MPLAB IDE software brings an ease of software

development previously unseen in the 8/16/32-bit

microcontroller market. The MPLAB IDE is a Windows®

operating system-based application that contains:

• A single graphical interface to all debugging tools

- Simulator

- Programmer (sold separately)

- In-Circuit Emulator (sold separately)

- In-Circuit Debugger (sold separately)

• A full-featured editor with color-coded context

• A multiple project manager

• Customizable data windows with direct edit of

contents

• High-level source code debugging

• Mouse over variable inspection

• Drag and drop variables from source to watch

windows

• Extensive on-line help

• Integration of select third party tools, such as

IAR C Compilers

The MPLAB IDE allows you to:

• Edit your source files (either C or assembly)

• One-touch compile or assemble, and download to

emulator and simulator tools (automatically

updates all project information)

• Debug using:

- Source files (C or assembly)

- Mixed C and assembly

- Machine code

MPLAB IDE supports multiple debugging tools in a

single development paradigm, from the cost-effective

simulators, through low-cost in-circuit debuggers, to

full-featured emulators. This eliminates the learning

curve when upgrading to tools with increased flexibility

and power.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

30.2 MPLAB C Compilers for Various

Device Families

The MPLAB C Compiler code development systems

are complete ANSI C compilers for Microchip’s PIC18,

PIC24 and PIC32 families of microcontrollers and the

dsPIC30 and dsPIC33 families of digital signal

controllers. These compilers provide powerful

integration capabilities, superior code optimization and

ease of use.

For easy source level debugging, the compilers provide

symbol information that is optimized to the MPLAB IDE

debugger.

30.3 HI-TECH C for Various Device

Families

The HI-TECH C Compiler code development systems

are complete ANSI C compilers for Microchip’s PIC

family of microcontrollers and the dsPIC family of digital

signal controllers. These compilers provide powerful

integration capabilities, omniscient code generation

and ease of use.

For easy source level debugging, the compilers provide

symbol information that is optimized to the MPLAB IDE

debugger.

The compilers include a macro assembler, linker,

preprocessor, and one-step driver, and can run on

multiple platforms.

30.4 MPASM Assembler

The MPASM Assembler is a full-featured, universal

macro assembler for PIC10/12/16/18 MCUs.

The MPASM Assembler generates relocatable object

files for the MPLINK Object Linker, Intel® standard HEX

files, MAP files to detail memory usage and symbol

reference, absolute LST files that contain source lines

and generated machine code and COFF files for

debugging.

The MPASM Assembler features include:

• Integration into MPLAB IDE projects

• User-defined macros to streamline

assembly code

• Conditional assembly for multi-purpose

source files

• Directives that allow complete control over the

assembly process

30.5 MPLINK Object Linker/

MPLIB Object Librarian

The MPLINK Object Linker combines relocatable

objects created by the MPASM Assembler and the

MPLAB C18 C Compiler. It can link relocatable objects

from precompiled libraries, using directives from a

linker script.

The MPLIB Object Librarian manages the creation and

modification of library files of precompiled code. When

a routine from a library is called from a source file, only

the modules that contain that routine will be linked in

with the application. This allows large libraries to be

used efficiently in many different applications.

The object linker/library features include:

• Efficient linking of single libraries instead of many

smaller files

• Enhanced code maintainability by grouping

related modules together

• Flexible creation of libraries with easy module

listing, replacement, deletion and extraction

30.6 MPLAB Assembler, Linker and

Librarian for Various Device

Families

MPLAB Assembler produces relocatable machine

code from symbolic assembly language for PIC24,

PIC32 and dsPIC devices. MPLAB C Compiler uses

the assembler to produce its object file. The assembler

generates relocatable object files that can then be

archived or linked with other relocatable object files and

archives to create an executable file. Notable features

of the assembler include:

• Support for the entire device instruction set

• Support for fixed-point and floating-point data

• Command line interface

• Rich directive set

• Flexible macro language

• MPLAB IDE compatibility

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

30.7 MPLAB SIM Software Simulator

The MPLAB SIM Software Simulator allows code

development in a PC-hosted environment by

simulating the PIC MCUs and dsPIC® DSCs on an

instruction level. On any given instruction, the data

areas can be examined or modified and stimuli can be

applied from a comprehensive stimulus controller.

Registers can be logged to files for further run-time

analysis. The trace buffer and logic analyzer display

extend the power of the simulator to record and track

program execution, actions on I/O, most peripherals

and internal registers.

The MPLAB SIM Software Simulator fully supports

symbolic debugging using the MPLAB C Compilers,

and the MPASM and MPLAB Assemblers. The

software simulator offers the flexibility to develop and

debug code outside of the hardware laboratory

environment, making it an excellent, economical

software development tool.

30.8 MPLAB REAL ICE In-Circuit

Emulator System

MPLAB REAL ICE In-Circuit Emulator System is

Microchip’s next generation high-speed emulator for

Microchip Flash DSC and MCU devices. It debugs and

programs PIC® Flash MCUs and dsPIC® Flash DSCs

with the easy-to-use, powerful graphical user interface of

the MPLAB Integrated Development Environment (IDE),

included with each kit.

The emulator is connected to the design engineer’s PC

using a high-speed USB 2.0 interface and is connected

to the target with either a connector compatible with

in-circuit debugger systems (RJ11) or with the new

high-speed, noise tolerant, Low-Voltage Differential Sig-

nal (LVDS) interconnection (CAT5).

The emulator is field upgradable through future firmware

downloads in MPLAB IDE. In upcoming releases of

MPLAB IDE, new devices will be supported, and new

features will be added. MPLAB REAL ICE offers

significant advantages over competitive emulators

including low-cost, full-speed emulation, run-time

variable watches, trace analysis, complex breakpoints, a

ruggedized probe interface and long (up to three meters)

interconnection cables.

30.9 MPLAB ICD 3 In-Circuit Debugger

System

MPLAB ICD 3 In-Circuit Debugger System is

Microchip's most cost effective high-speed hardware

debugger/programmer for Microchip Flash Digital

Signal Controller (DSC) and microcontroller devices. It

debugs and programs PIC® Flash microcontrollers and

dsPIC® DSCs with the powerful, yet easy-to-use

graphical user interface of MPLAB Integrated

Development Environment (IDE).

The MPLAB ICD 3 In-Circuit Debugger probe is

connected to the design engineer's PC using a

high-speed USB 2.0 interface and is connected to the

target with a connector compatible with the MPLAB

ICD 2 or MPLAB REAL ICE systems (RJ-11). MPLAB

ICD 3 supports all MPLAB ICD 2 headers.

30.10 PICkit 3 In-Circuit Debugger/

Programmer and

PICkit 3 Debug Express

The MPLAB PICkit 3 allows debugging and

programming of PIC® and dsPIC® Flash

microcontrollers at a most affordable price point using

the powerful graphical user interface of the MPLAB

Integrated Development Environment (IDE). The

MPLAB PICkit 3 is connected to the design engineer's

PC using a full speed USB interface and can be

connected to the target via an Microchip debug (RJ-11)

connector (compatible with MPLAB ICD 3 and MPLAB

REAL ICE). The connector uses two device I/O pins

and the reset line to implement in-circuit debugging and

In-Circuit Serial Programming™.

The PICkit 3 Debug Express include the PICkit 3, demo

board and microcontroller, hookup cables and CDROM

with user’s guide, lessons, tutorial, compiler and

MPLAB IDE software.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

30.11 PICkit 2 Development

Programmer/Debugger and

PICkit 2 Debug Express

The PICkit™ 2 Development Programmer/Debugger is

a low-cost development tool with an easy to use

interface for programming and debugging Microchip’s

Flash families of microcontrollers. The full featured

Windows® programming interface supports baseline

(PIC10F, PIC12F5xx, PIC16F5xx), midrange

(PIC12F6xx, PIC16F), PIC18F, PIC24, dsPIC30,

dsPIC33, and PIC32 families of 8-bit, 16-bit, and 32-bit

microcontrollers, and many Microchip Serial EEPROM

products. With Microchip’s powerful MPLAB Integrated

Development Environment (IDE) the PICkit™ 2

enables in-circuit debugging on most PIC®

microcontrollers. In-Circuit-Debugging runs, halts and

single steps the program while the PIC microcontroller

is embedded in the application. When halted at a

breakpoint, the file registers can be examined and

modified.

The PICkit 2 Debug Express include the PICkit 2, demo

board and microcontroller, hookup cables and CDROM

with user’s guide, lessons, tutorial, compiler and

MPLAB IDE software.

30.12 MPLAB PM3 Device Programmer

The MPLAB PM3 Device Programmer is a universal,

CE compliant device programmer with programmable

voltage verification at VDDMIN and VDDMAX for

maximum reliability. It features a large LCD display

(128 x 64) for menus and error messages and a

modular, detachable socket assembly to support

various package types. The ICSP™ cable assembly is

included as a standard item. In Stand-Alone mode, the

MPLAB PM3 Device Programmer can read, verify and

program PIC devices without a PC connection. It can

also set code protection in this mode. The MPLAB PM3

connects to the host PC via an RS-232 or USB cable.

The MPLAB PM3 has high-speed communications and

optimized algorithms for quick programming of large

memory devices and incorporates an MMC card for file

storage and data applications.

30.13 Demonstration/Development

Boards, Evaluation Kits, and

Starter Kits

A wide variety of demonstration, development and

evaluation boards for various PIC MCUs and dsPIC

DSCs allows quick application development on fully

functional systems. Most boards include prototyping

areas for adding custom circuitry and provide application

firmware and source code for examination and

modification.

The boards support a variety of features, including LEDs,

temperature sensors, switches, speakers, RS-232

interfaces, LCD displays, potentiometers and additional

EEPROM memory.

The demonstration and development boards can be

used in teaching environments, for prototyping custom

circuits and for learning about various microcontroller

applications.

In addition to the PICDEM™ and dsPICDEM™

demonstration/development board series of circuits,

Microchip has a line of evaluation kits and

demonstration software for analog filter design,

KEELOQ® security ICs, CAN, IrDA®, PowerSmart

battery management, SEEVAL® evaluation system,

Sigma-Delta ADC, flow rate sensing, plus many more.

Also available are starter kits that contain everything

needed to experience the specified device. This usually

includes a single application and debug capability, all

on one board.

Check the Microchip web page (www.microchip.com)

for the complete list of demonstration, development

and evaluation kits.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

31.0 ELECTRICAL CHARACTERISTICS

This section provides an overview of dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 electrical characteristics. Additional information will be provided in future revisions of this document as it becomes

available.

Absolute maximum ratings for the dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 family are listed below. Exposure to these maximum rating conditions for extended periods may affect device

reliability. Functional operation of the device at these or any other conditions above the parameters indicated in the

operation listings of this specification is not implied.

Absolute Maximum Ratings(1)

Ambient temperature under bias.............................................................................................................-40°C to +125°C

Storage temperature .............................................................................................................................. -65°C to +160°C

Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V

Voltage on any pin that is not 5V tolerant with respect to VSS(4) .................................................... -0.3V to (VDD + 0.3V)

Voltage on any 5V tolerant pin with respect to VSS when VDD ≥ 3.0V(4) .................................................. -0.3V to +5.6V

Voltage on any 5V tolerant pin with respect to Vss when VDD < 3.0V(4)...................................................... -0.3V to 3.6V

Maximum current out of VSS pin ...........................................................................................................................300 mA

Maximum current into VDD pin(2)...........................................................................................................................250 mA

Maximum current sourced/sunk by any 2x I/O pin(3) ................................................................................................8 mA

Maximum current sourced/sunk by any 4x I/O pin(3) ..............................................................................................15 mA

Maximum current sourced/sunk by any 8x I/O pin(3) ..............................................................................................25 mA

Maximum current sunk by all ports .......................................................................................................................200 mA

Maximum current sourced by all ports(2)...............................................................................................................200 mA

Note 1: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the

device. This is a stress rating only, and functional operation of the device at those or any other conditions

above those indicated in the operation listings of this specification is not implied. Exposure to maximum

rating conditions for extended periods may affect device reliability.

2: Maximum allowable current is a function of device maximum power dissipation (see Table 31-2).

3: Exceptions are CLKOUT, which is able to sink/source 25 mA, and the VREF+, VREF-, SCLx, SDAx, PGECx

and PGEDx pins, which are able to sink/source 12 mA.

4: See the “Pin Diagrams” section for 5V tolerant pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

31.1 DC Characteristics

TABLE 31-1: OPERATING MIPS VS. VOLTAGE

Characteristic VDD Range

(in Volts)

Temp Range

(in °C)

Max MIPS

dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04

—3.0-3.6V(1) -40°C to +85°C 40

—3.0-3.6V(1) -40°C to +125°C 40

Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded

performance. Device functionality is tested but not characterized. Refer to parameter BO10 in Table 31-11

for the minimum and maximum BOR values.

TABLE 31-2: THERMAL OPERATING CONDITIONS

Rating Symbol Min Typ Max Unit

Industrial Temperature Devices

Operating Junction Temperature Range TJ-40 — +125 °C

Operating Ambient Temperature Range TA-40 — +85 °C

Extended Temperature Devices

Operating Junction Temperature Range TJ-40 — +155 °C

Operating Ambient Temperature Range TA-40 — +125 °C

Power Dissipation:

Internal chip power dissipation:

PINT = VDD x (IDD – Σ IOH) PDPINT + PI/OW

I/O Pin Power Dissipation:

I/O = Σ ({VDD – VOH} x IOH) + Σ (VOL x IOL)

Maximum Allowed Power Dissipation PDMAX (TJ – TA)/θJA W

TABLE 31-3: THERMAL PACKAGING CHARACTERISTICS

Characteristic Symbol Typ Max Unit Notes

Package Thermal Resistance, 44-pin QFN θJA 30 — °C/W 1

Package Thermal Resistance, 44-pin TFQP θJA 40 — °C/W 1

Package Thermal Resistance, 28-pin SPDIP θJA 45 — °C/W 1

Package Thermal Resistance, 28-pin SOIC θJA 50 — °C/W 1

Package Thermal Resistance, 28-pin QFN-S θJA 30 — °C/W 1

Note 1: Junction to ambient thermal resistance, Theta-JA (θJA) numbers are achieved by package simulations.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-4: DC TEMPERATURE AND VOLTAGE SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ + 85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

Operating Voltage

DC10 Supply Voltage

VDD 3.0 — 3.6 V Industrial and Extended

DC12 VDR RAM Data Retention Voltage(2) 1.8 — — V —

DC16 VPOR VDD Start Voltage

to ensure internal

Power-on Reset signal

——V

SS V—

DC17 SVDD VDD Rise Rate

to ensure internal

Power-on Reset signal

0.03 — — V/ms 0-3.0V in 0.1s

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: This is the limit to which VDD may be lowered without losing RAM data.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-5: DC CHARACTERISTICS: OPERATING CURRENT (IDD)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ + 85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Parameter

No.(3) Typical(2) Max Units Conditions

Operating Current (IDD)(1)

DC20d 18 21 mA -40°C

3.3V 10 MIPS

DC20a 18 22 mA +25°C

DC20b 18 22 mA +85°C

DC20c 18 25 mA +125°C

DC21d 30 35 mA -40°C

3.3V 16 MIPS

DC21a 30 34 mA +25°C

DC21b 30 34 mA +85°C

DC21c 30 36 mA +125°C

DC22d 34 42 mA -40°C

3.3V 20 MIPS

DC22a 34 41 mA +25°C

DC22b 34 42 mA +85°C

DC22c 35 44 mA +125°C

DC23d 49 58 mA -40°C

3.3V 30 MIPS

DC23a 49 57 mA +25°C

DC23b 49 57 mA +85°C

DC23c 49 60 mA +125°C

DC24d 63 75 mA -40°C

3.3V 40 MIPS

DC24a 63 74 mA +25°C

DC24b 63 74 mA +85°C

DC24c 63 76 mA +125°C

Note 1: IDD is primarily a function of the operating voltage and frequency. Other factors, such as I/O pin loading

and switching rate, oscillator type, internal code execution pattern and temperature, also have an impact

on the current consumption. The test conditions for all IDD measurements are as follows:

• Oscillator is configured in EC mode, no PLL until 10 MIPS, OSC1 is driven with external square wave

from rail-to-rail (EC clock overshoot/undershoot < 250 mV required)

• CLKO is configured as an I/O input pin in the Configuration word

• All I/O pins are configured as inputs and pulled to VSS

•MCLR = VDD, WDT and FSCM are disabled

• CPU, SRAM, program memory and data memory are operational

• No peripheral modules are operating; however, every peripheral is being clocked (defined PMDx bits

are set to zero)

• CPU executing while(1) statement

• JTAG is disabled

2: Data in “Typ” column is at 3.3V, +25ºC unless otherwise stated.

3: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-6: DC CHARACTERISTICS: IDLE CURRENT (IIDLE)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ + 85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Parameter

No.(3) Typical(2) Max Units Conditions

Idle Current (IIDLE): Core OFF Clock ON Base Current(1)

DC40d 8 10 mA -40°C

3.3V 10 MIPS

DC40a 8 10 mA +25°C

DC40b 9 10 mA +85°C

DC40c 10 13 mA +125°C

DC41d 13 15 mA -40°C

3.3V 16 MIPS

DC41a 13 mA +25°C15

DC41b 13 16 mA +85°C

DC41c 13 19 mA +125°C

DC42d 15 18 mA -40°C

3.3V 20 MIPS

DC42a 16 18 mA +25°C

DC42b 16 19 mA +85°C

DC42c 17 22 mA +125°C

DC43d 23 27 mA -40°C

3.3V 30 MIPS

DC43a 23 26 mA +25°C

DC43b 24 28 mA +85°C

DC43c 25 31 mA +125°C

DC44d 31 42 mA -40°C

3.3V 40 MIPS

DC44a 31 36 mA +25°C

DC44b 32 39 mA +85°C

DC44c 34 43 mA +125°C

Note 1: Base IIDLE current is measured as follows:

• CPU core is off (i.e., Idle mode), oscillator is configured in EC mode and external clock active, OSC1

is driven with external square wave from rail-to-rail (EC clock overshoot/undershoot < 250 mV

required)

• CLKO is configured as an I/O input pin in the Configuration word

• External Secondary Oscillator disabled (i.e., SOSCO and SOSCI pins configured as digital I/O inputs)

• All I/O pins are configured as inputs and pulled to VSS

•MCLR = VDD, WDT and FSCM are disabled

• No peripheral modules are operating; however, every peripheral is being clocked (defined PMDx bits

are set to zero)

• JTAG is disabled

2: Data in “Typ” column is at 3.3V, +25ºC unless otherwise stated.

3: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-7: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ + 85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Parameter

No. Typical(1) Max Units Conditions

Power-Down Current (IPD)(2)

DC60d 24 68 μA-40°C

3.3V Base Power-Down Current(3,4)

DC60a 28 87 μA+25°C

DC60b 124 292 μA+85°C

DC60c 350 1000 μA +125°C

DC61d 8 13 μA-40°C

3.3V Watchdog Timer Current:

ΔIWDT(3,5)

DC61a 10 15 μA+25°C

DC61b 12 20 μA+85°C

DC61c 13 25 μA +125°C

Note 1: IPD (Sleep) current is measured as follows:

• CPU core is off, oscillator is configured in EC mode and external clock active, OSC1 is driven with

external square wave from rail-to-rail (EC clock overshoot/undershoot < 250 mV required)

• CLKO is configured as an I/O input pin in the Configuration word

• All I/O pins are configured as inputs and pulled to VSS

•MCLR = VDD, WDT and FSCM are disabled, all peripheral modules are disabled (PMDx bits are all

‘1’s)

• RTCC is disabled

• JTAG is disabled

2: Data in the “Typ” column is at 3.3V, +25ºC unless otherwise stated.

3: The Watchdog Timer Current is the additional current consumed when the WDT module is enabled. This

current should be added to the base IPD current.

4: These currents are measured on the device containing the most memory in this family.

5: These parameters are characterized, but are not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-8: DC CHARACTERISTICS: DOZE CURRENT (IDOZE)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ + 85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Parameter No. Typical(1) Max Doze

Ratio Units Conditions

DC73a 20 50 1:2 mA

-40°C 3.3V 40 MIPSDC73f 17 30 1:64 mA

DC73g 17 30 1:128 mA

DC70a 20 50 1:2 mA

+25°C 3.3V 40 MIPSDC70f 17 30 1:64 mA

DC70g 17 30 1:128 mA

DC71a 20 50 1:2 mA

+85°C 3.3V 40 MIPSDC71f 17 30 1:64 mA

DC71g 17 30 1:128 mA

DC72a 21 50 1:2 mA

+125°C 3.3V 40 MIPSDC72f 18 30 1:64 mA

DC72g 18 30 1:128 mA

Note 1: Data in the “Typical” column is at 3.3V, 25°C unless otherwise stated.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

VIL Input Low Voltage

DI10 I/O pins VSS — 0.2 VDD V

DI11 PMP pins VSS —0.15 VDD VPMPTTL = 1

DI15 MCLR VSS —0.2 VDD V

DI16 I/O Pins with OSC1 or SOSCI VSS — 0.2 VDD V

DI18 I/O Pins with SDAx, SCLx VSS — 0.3 VDD V SMbus disabled

DI19 I/O Pins with SDAx, SCLx VSS — 0.8 V V SMbus enabled

VIH Input High Voltage

DI20

DI21

I/O Pins Not 5V Tolerant(4)

I/O Pins 5V Tolerant(4)

I/O Pins Not 5V Tolerant with

PMP(4)

I/O Pins 5V Tolerant with

PMP(4)

0.7 VDD

0.24 VDD + 0.8

—

VDD

5.5

VDD

5.5

—

DI28 SDAx, SCLx 0.7 VDD — 5.5 V SMbus disabled

DI29 SDAx, SCLx 2.1 — 5.5 V SMbus enabled

ICNPU CNx Pull-up Current

DI30 50 250 400 μAV

DD = 3.3V, VPIN = VSS

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified levels

represent normal operating conditions. Higher leakage current can be measured at different input voltages.

3: Negative current is defined as current sourced by the pin.

4: See “Pin Diagrams” for the 5V tolerant I/O pins.

5: VIL source < (VSS – 0.3). Characterized but not tested.

6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not

tested.

7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.

8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted

provided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not

exceed the specified limit. Characterized but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

IIL Input Leakage Current(2,3)

DI50 I/O pins 5V Tolerant(4) ——±2μAVSS ≤ VPIN ≤ VDD,

Pin at high-impedance

DI51 I/O Pins Not 5V Tolerant(4)

(Excluding RB9 through

RB12)

——±1μAV

SS ≤ VPIN ≤ VDD,

Pin at high-impedance,

40°C ≤ TA ≤ +85°C

DI51a I/O Pins Not 5V Tolerant(4) ——±2μA Shared with external

reference pins,

40°C ≤ TA ≤ +85°C

DI51b I/O Pins Not 5V Tolerant(4)

(Excluding RB9 through

RB12)

——±3.5μAV

SS ≤ VPIN ≤ VDD, Pin at

high-impedance,

-40°C ≤ TA ≤ +125°C

DI51c I/O Pins Not 5V Tolerant(4) ——±8μA Analog pins shared

with external reference

pins,

-40°C ≤ TA ≤ +125°C

DI51d RB9 through RB12 — — ±11 μAVSS ≤ VPIN ≤ VDD, Pin at

high-impedance,

-40°C ≤ TA ≤ +85°C

DI51e RB9 through RB12 — — ±13 μAVSS ≤ VPIN ≤ VDD, Pin at

high-impedance,

-40°C ≤ TA ≤ +125°C

DI55 MCLR ——±2 μAVSS ≤ VPIN ≤ VDD

DI56 OSC1 — — ±2 μAVSS ≤ VPIN ≤ VDD,

XT and HS modes

TABLE 31-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS (CONTINUED)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified levels

represent normal operating conditions. Higher leakage current can be measured at different input voltages.

3: Negative current is defined as current sourced by the pin.

4: See “Pin Diagrams” for the 5V tolerant I/O pins.

5: VIL source < (VSS – 0.3). Characterized but not tested.

6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not

tested.

7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.

8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted

provided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not

exceed the specified limit. Characterized but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

IICL Input Low Injection Current

DI60a 0 — -5(5,8) mA All pins except VDD,

VSS, AVDD, AVSS,

MCLR, VCAP, SOSCI,

SOSCO, and RB14

IICH Input High Injection Current

DI60b 0 — +5(6,7,8) mA All pins except VDD,

VSS, AVDD, AVSS,

MCLR, VCAP, SOSCI,

SOSCO, RB14, and

digital 5V-tolerant

designated pins

∑ IICT Total Input Injection Current

DI60c (sum of all I/O and control

pins)

-20(9) —+20

(9) mA Absolute instantaneous

sum of all ± input

injection currents from

all I/O pins

( | IICL + | IICH | ) ≤ ∑ IICT

TABLE 31-9: DC CHARACTERISTICS: I/O PIN INPUT SPECIFICATIONS (CONTINUED)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: The leakage current on the MCLR pin is strongly dependent on the applied voltage level. The specified levels

represent normal operating conditions. Higher leakage current can be measured at different input voltages.

3: Negative current is defined as current sourced by the pin.

4: See “Pin Diagrams” for the 5V tolerant I/O pins.

5: VIL source < (VSS – 0.3). Characterized but not tested.

6: Non-5V tolerant pins VIH source > (VDD + 0.3), 5V tolerant pins VIH source > 5.5V. Characterized but not

tested.

7: Digital 5V tolerant pins cannot tolerate any “positive” input injection current from input sources > 5.5V.

8: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

9: Any number and/or combination of I/O pins not excluded under IICL or IICH conditions are permitted

provided the mathematical “absolute instantaneous” sum of the input injection currents from all pins do not

exceed the specified limit. Characterized but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-10: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param. Symbol Characteristic Min. Typ. Max. Units Conditions

DO10 VOL

Output Low Voltage

I/O Pins:

2x Sink Driver Pins - RA2, RA7-

RA10, RB10, RB11, RB7, RB4,

RC3-RC9

——0.4V IOL ≤ 3 mA, VDD = 3.3V

See Note 1

Output Low Voltage

I/O Pins:

4x Sink Driver Pins - RA0, RA1,

RB0-RB3, RB5, RB6, RB8, RB9,

RB12-RB15, RC0-RC2

——0.4V IOL ≤ 6 mA, VDD = 3.3V

See Note 1

Output Low Voltage

I/O Pins:

8x Sink Driver Pins - RA3, RA4

——0.4V IOL ≤ 10 mA, VDD = 3.3V

See Note 1

DO20 VOH

Output High Voltage

I/O Pins:

2x Source Driver Pins - RA2,

RA7-RA10, RB4, RB7, RB10,

RB11, RC3-RC9

2.4 — — V IOH ≥ -3 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

4x Source Driver Pins - RA0,

RA1, RB0-RB3, RB5, RB6, RB8,

RB9, RB12-RB15, RC0-RC2

2.4 — — V IOH ≥ -6 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

8x Source Driver Pins - RA4,

RA3

2.4 — — V IOH ≥ -10 mA, VDD = 3.3V

See Note 1

DO20A VOH1

Output High Voltage

I/O Pins:

2x Source Driver Pins - RA2,

RA7-RA10, RB4, RB7, RB10,

RB11, RC3-RC9

1.5 — —

IOH ≥ -6 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -5 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -2 mA, VDD = 3.3V

See Note 1

Output High Voltage

4x Source Driver Pins - RA0,

RA1, RB0-RB3, RB5, RB6, RB8,

RB9, RB12-RB15, RC0-RC2

1.5 — —

IOH ≥ -12 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -11 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -3 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

8x Source Driver Pins - RA3,

RA4

1.5 — —

IOH ≥ -16 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -12 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -4 mA, VDD = 3.3V

See Note 1

Note 1: Parameters are characterized, but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-13: INTERNAL VOLTAGE REGULATOR SPECIFICATIONS

TABLE 31-11: ELECTRICAL CHARACTERISTICS: BOR

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min(1) Typ Max Units Conditions

BO10 VBOR BOR Event on VDD transition high-to-low 2.40 — 2.55 V VDD

Note 1: Parameters are for design guidance only and are not tested in manufacturing.

TABLE 31-12: DC CHARACTERISTICS: PROGRAM MEMORY

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

Program Flash Memory

D130 EPCell Endurance 10,000 — — E/W -40°C to +125°C

D131 VPR VDD for Read VMIN —3.6VVMIN = Minimum operating voltage

D132B VPEW VDD for Self-Timed Write VMIN —3.6VVMIN = Minimum operating voltage

D134 TRETD Characteristic Retention 20 — — Year Provided no other specifications

are violated, -40°C to +125°C

D135 IDDP Supply Current during

Programming

—10 —mA —

D136a TRW Row Write Time 1.32 — 1.74 ms TRW = 11064 FRC cycles,

TA = +85°C, See Note 2

D136b TRW Row Write Time 1.28 — 1.79 ms TRW = 11064 FRC cycles,

TA = +125°C, See Note 2

D137a TPE Page Erase Time 20.1 — 26.5 ms TPE = 168517 FRC cycles,

TA = +85°C, See Note 2

D137b TPE Page Erase Time 19.5 — 27.3 ms TPE = 168517 FRC cycles,

TA = +125°C, See Note 2

D138a TWW Word Write Cycle Time 42.3 — 55.9 µs TWW = 355 FRC cycles,

TA = +85°C, See Note 2

D138b TWW Word Write Cycle Time 41.1 — 57.6 µs TWW = 355 FRC cycles,

TA = +125°C, See Note 2

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: Other conditions: FRC = 7.37 MHz, TUN<5:0> = b'011111 (for Min), TUN<5:0> = b'100000 (for Max).

This parameter depends on the FRC accuracy (see Table 31-19) and the value of the FRC Oscillator

Tuning register (see Register 9-4). For complete details on calculating the Minimum and Maximum time

see Section 5.3 “Programming Operations”.

Standard Operating Conditions (unless otherwise stated):

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristics Min Typ Max Units Comments

—CEFC External Filter Capacitor

Value(1)

4.7 10 — μF Capacitor must be low series

resistance (< 5 ohms)

Note 1: Typical VCAP voltage = 2.5V when VDD ≥ VDDMIN.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

31.2 AC Characteristics and Timing

Parameters

This section defines dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/X04 AC

characteristics and timing parameters.

TABLE 31-14: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC

FIGURE 31-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS

TABLE 31-15: CAPACITIVE LOADING REQUIREMENTS ON OUTPUT PINS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Operating voltage VDD range as described in Table 31-1.

Param

No. Symbol Characteristic Min Typ Max Units Conditions

DO50 COSCO OSC2/SOSCO pin — — 15 pF In XT and HS modes when

external clock is used to drive

OSC1

DO56 CIO All I/O pins and OSC2 — — 50 pF EC mode

DO58 CBSCLx, SDAx — — 400 pF In I2C™ mode

VDD/2

VSS

RL=464Ω

CL= 50 pF for all pins except OSC2

15 pF for OSC2 output

Load Condition 1 – for all pins except OSC2 Load Condition 2 – for OSC2

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-2: EXTERNAL CLOCK TIMING

Q1 Q2 Q3 Q4

OSC1

CLKO

Q1 Q2 Q3 Q4

OS20

OS25

OS30 OS30

OS40

OS41

OS31 OS31

TABLE 31-16: EXTERNAL CLOCK TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symb Characteristic Min Typ(1) Max Units Conditions

OS10 FIN External CLKI Frequency

(External clocks allowed only

in EC and ECPLL modes)

DC — 40 MHz EC

Oscillator Crystal Frequency 3.5

—

3.5

—

MHz

kHz

MHz

Sosc

AUX_OSC_FIN

OS20 TOSC TOSC = 1/FOSC 12.5 — DC ns —

OS25 TCY Instruction Cycle Time(2) 25 — DC ns —

OS30 TosL,

Tos H

External Clock in (OSC1)

High or Low Time

0.375 x TOSC — 0.625 x TOSC ns EC

OS31 TosR,

Tos F

External Clock in (OSC1)

Rise or Fall Time

——20nsEC

OS40 TckR CLKO Rise Time(3) —5.2—ns—

OS41 TckF CLKO Fall Time(3) —5.2—ns—

OS42 GMExternal Oscillator

Transconductance(4)

14 16 18 mA/V VDD = 3.3V

TA = +25ºC

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

2: Instruction cycle period (TCY) equals two times the input oscillator time-base period. All specified values

are based on characterization data for that particular oscillator type under standard operating conditions

with the device executing code. Exceeding these specified limits may result in an unstable oscillator

operation and/or higher than expected current consumption. All devices are tested to operate at “min.”

values with an external clock applied to the OSC1/CLKI pin. When an external clock input is used, the

“max.” cycle time limit is “DC” (no clock) for all devices.

3: Measurements are taken in EC mode. The CLKO signal is measured on the OSC2 pin.

4: Data for this parameter is Preliminary. This parameter is characterized, but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-17: PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

OS50 FPLLI PLL Voltage Controlled

Oscillator (VCO) Input

Frequency Range

0.8 — 8 MHz ECPLL, XTPLL modes

OS51 FSYS On-Chip VCO System

Frequency

100 — 200 MHz —

OS52 TLOCK PLL Start-up Time (Lock Time) 0.9 1.5 3.1 mS —

OS53 DCLK CLKO Stability (Jitter)(2) -3 0.5 3 % Measured over 100 ms

period

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

2: These parameters are characterized by similarity, but are not tested in manufacturing. This specification is

based on clock cycle by clock cycle measurements. To calculate the effective jitter for individual time bases

or communication clocks use this formula:

Peripheral Clock Jitter DCLK

FOSC

Peripheral Bit Rate Clock

--------------------------------------------------------------

⎝⎠

⎛⎞

------------------------------------------------------------------------=

For example: Fosc = 32 MHz, DCLK = 3%, SPI bit rate clock, (i.e., SCK) is 2 MHz.

SPI SCK Jitter DCLK

32 MHz

2 MHz

--------------------

⎝⎠

⎛⎞

------------------------------ 3%

----------3%

--------0.75%====

TABLE 31-18: AC CHARACTERISTICS: INTERNAL RC ACCURACY

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Characteristic Min Typ Max Units Conditions

Internal FRC Accuracy @ FRC Frequency = 7.37 MHz(1)

F20 FRC -2 — +2 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V

FRC -5 — +5 % -40°C ≤ TA ≤ +125°C VDD = 3.0-3.6V

Note 1: Frequency calibrated at 25°C and 3.3V. TUN bits can be used to compensate for temperature drift.

TABLE 31-19: INTERNAL RC ACCURACY

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Characteristic Min Typ Max Units Conditions

LPRC @ 32.768 kHz(1)

F21 LPRC -20 ±6 +20 % -40°C ≤ TA ≤ +85°C VDD = 3.0-3.6V

LPRC -30 — +30 % -40°C ≤ TA ≤ +125°C VDD = 3.0-3.6V

Note 1: Change of LPRC frequency as VDD changes.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-3: I/O TIMING CHARACTERISTICS

TABLE 31-20: I/O TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

DO31 TIOR Port Output Rise Time — 10 25 ns —

DO32 TIOF Port Output Fall Time — 10 25 ns —

DI35 TINP INTx Pin High or Low Time (input) 20 — — ns —

DI40 TRBP CNx High or Low Time (input) 2 — — TCY —

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

Note: Refer to Figure 31-1 for load conditions.

I/O Pin

(Input)

I/O Pin

(Output)

DI35

Old Value New Value

DI40

DO31

DO32

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-4: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER AND POWER-UP

TIMER TIMING CHARACTERISTICS

VDD

MCLR

Internal

POR

PWRT

Time-out

OSC

Time-out

Internal

Reset

Watchdog

Timer

Reset

SY11

SY10

SY20

SY13

I/O Pins

SY13

Note: Refer to Figure 31-1 for load conditions.

FSCM

Delay

SY35

SY30

SY12

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-21: RESET, WATCHDOG TIMER, OSCILLATOR START-UP TIMER, POWER-UP TIMER

TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SY10 TMCLMCLR Pulse Width (low) 2 — — μs -40°C to +85°C

SY11 TPWRT Power-up Timer Period — 2

128

— ms -40°C to +85°C

User programmable

SY12 TPOR Power-on Reset Delay 3 10 30 μs -40°C to +85°C

SY13 TIOZ I/O High-Impedance from

MCLR Low or Watchdog

Timer Reset

0.68 0.72 1.2 μs—

SY20 TWDT1 Watchdog Timer Time-out

Period

————See Section 28.4 “Watchdog

Timer (WDT)” and LPRC

specification F21 (Table 31-19)

SY30 TOST Oscillator Start-up Time — 1024 TOSC ——TOSC = OSC1 period

SY35 TFSCM Fail-Safe Clock Monitor

Delay

— 500 900 μs -40°C to +85°C

Note 1: These parameters are characterized but not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-5: TIMER1, 2 AND 3 EXTERNAL CLOCK TIMING CHARACTERISTICS

Note: Refer to Figure 31-1 for load conditions.

Tx11

Tx15

Tx10

Tx20

TMRx

OS60

TxCK

TABLE 31-22: TIMER1 EXTERNAL CLOCK TIMING REQUIREMENTS(1)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

TA10 TTXH TxCK High Time Synchronous,

no prescaler

TCY + 20 — — ns Must also meet

parameter TA15.

N = prescale

value

(1, 8, 64, 256)

Synchronous,

with prescaler

(TCY + 20)/N — — ns

Asynchronous 20 — — ns

TA11 TTXL TxCK Low Time Synchronous,

no prescaler

(TCY + 20) — — ns Must also meet

parameter TA15.

N = prescale

value

(1, 8, 64, 256)

Synchronous,

with prescaler

(TCY + 20)/N — — ns

Asynchronous 20 — — ns

TA15 TTXP TxCK Input

Period

Synchronous,

no prescaler

2 TCY + 40 — — ns —

Synchronous,

with prescaler

Greater of:

40 ns or

(2 TCY + 40)/

— — — N = prescale

value

(1, 8, 64, 256)

Asynchronous 40 — — ns —

OS60 Ft1 SOSCI/T1CK Oscillator Input

frequency Range (oscillator

enabled by setting bit TCS

(T1CON<1>))

DC — 50 kHz —

TA20 TCKEXTMRL Delay from External TxCK Clock

Edge to Timer Increment

0.75 TCY +

1.75 TCY +

——

Note 1: Timer1 is a Type A.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-23: TIMER2 AND TIMER4 EXTERNAL CLOCK TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

TB10 TtxH TxCK High

Time

Synchronous

mode

Greater of:

20 or

(TCY + 20)/N

——ns

Must also meet

parameter TB15

N = prescale

value

(1, 8, 64, 256)

TB11 TtxL TxCK Low

Time

Synchronous

mode

Greater of:

20 or

(TCY + 20)/N

— — ns Must also meet

parameter TB15

N = prescale

value

(1, 8, 64, 256)

TB15 TtxP TxCK

Input

Period

Synchronous

mode

Greater of:

40 or

(2 TCY + 40)/N

— — ns N = prescale

value

(1, 8, 64, 256)

TB20 TCKEXTMRL Delay from External TxCK

Clock Edge to Timer Incre-

ment

0.75 TCY + 40 — 1.75 TCY + 40 ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

TABLE 31-24: TIMER3 AND TIMER5 EXTERNAL CLOCK TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

TC10 TtxH TxCK High

Time

Synchronous TCY + 20 — — ns Must also meet

parameter TC15

TC11 TtxL TxCK Low

Time

Synchronous TCY + 20 — — ns Must also meet

parameter TC15

TC15 TtxP TxCK Input

Period

Synchronous,

with prescaler

2 TCY + 40 — — ns —

TC20 TCKEXTMRL Delay from External TxCK

Clock Edge to Timer

Increment

0.75 TCY + 40 — 1.75 TCY + 40 ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-6: TIMERQ (QEI MODULE) EXTERNAL CLOCK TIMING CHARACTERISTICS

TQ11

TQ15

TQ10

TQ20

QEB

POSCNT

TABLE 31-25: QEI MODULE EXTERNAL CLOCK TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

TQ10 TtQH TQCK High Time Synchronous,

with prescaler

TCY + 20 — ns Must also meet

parameter TQ15

TQ11 TtQL TQCK Low Time Synchronous,

with prescaler

TCY + 20 — ns Must also meet

parameter TQ15

TQ15 TtQP TQCP Input

Period

Synchronous,

with prescaler

2 * TCY + 40 — ns —

TQ20 TCKEXTMRL Delay from External TxCK Clock

Edge to Timer Increment

0.5 TCY 1.5 TCY ——

Note 1: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-7: INPUT CAPTURE (CAPx) TIMING CHARACTERISTICS

FIGURE 31-8: OUTPUT COMPARE MODULE (OCx) TIMING CHARACTERISTICS

TABLE 31-26: INPUT CAPTURE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Max Units Conditions

IC10 TccL ICx Input Low Time No Prescaler 0.5 TCY + 20 — ns

With Prescaler 10 — ns

IC11 TccH ICx Input High Time No Prescaler 0.5 TCY + 20 — ns

With Prescaler 10 — ns

IC15 TccP ICx Input Period (TCY + 40)/N — ns N = prescale

value (1, 4, 16)

Note 1: These parameters are characterized but not tested in manufacturing.

TABLE 31-27: OUTPUT COMPARE MODULE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

OC10 TccF OCx Output Fall Time — — — ns See parameter D032

OC11 TccR OCx Output Rise Time — — — ns See parameter D031

Note 1: These parameters are characterized but not tested in manufacturing.

ICx

IC10 IC11

IC15

Note: Refer to Figure 31-1 for load conditions.

OCx

OC11 OC10

(Output Compare

Note: Refer to Figure 31-1 for load conditions.

or PWM Mode)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-9: OC/PWM MODULE TIMING CHARACTERISTICS

OCFA

OCx

OC20

OC15

Active Tri-state

TABLE 31-28: SIMPLE OC/PWM MODE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

OC15 TFD Fault Input to PWM I/O

Change

——TCY + 20 ns —

OC20 TFLT Fault Input Pulse Width TCY + 20 — — ns —

Note 1: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-10: MOTOR CONTROL PWM MODULE FAULT TIMING CHARACTERISTICS

FIGURE 31-11: MOTOR CONTROL PWM MODULE TIMING CHARACTERISTICS

FLTA

PWMx

MP30

MP20

PWMx

MP11 MP10

Note: Refer to Figure 31-1 for load conditions.

TABLE 31-29: MOTOR CONTROL PWM MODULE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

MP10 TFPWM PWM Output Fall Time — — — ns See parameter DO32

MP11 TRPWM PWM Output Rise Time — — — ns See parameter DO31

MP20 TFD Fault Input ↓ to PWM

I/O Change

——50ns —

MP30 TFH Minimum Pulse Width 50 — — ns —

Note 1: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-12: QEA/QEB INPUT CHARACTERISTICS

TQ30

TQ35

TQ31

QEA

(input)

TQ30

TQ35

TQ31

QEB

(input)

TQ36

QEB

Internal

TQ40TQ41

TABLE 31-30: QUADRATURE DECODER TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Typ(2) Max Units Conditions

TQ30 TQUL Quadrature Input Low Time 6 TCY —ns —

TQ31 TQUH Quadrature Input High Time 6 TCY —ns —

TQ35 TQUIN Quadrature Input Period 12 TCY —ns —

TQ36 TQUP Quadrature Phase Period 3 TCY —ns —

TQ40 TQUFL Filter Time to Recognize Low,

with Digital Filter

3 * N * TCY — ns N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 3)

TQ41 TQUFH Filter Time to Recognize High,

with Digital Filter

3 * N * TCY — ns N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 3)

Note 1: These parameters are characterized but not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

3: N = Index Channel Digital Filter Clock Divide Select bits. Refer to Section 15. “Quadrature Encoder

Interface (QEI)” in the “dsPIC33F/PIC24H Family Reference Manual”. Please see the Microchip web site

for the latest dsPIC33F/PIC24H Family Reference Manual sections.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-13: QEI MODULE INDEX PULSE TIMING CHARACTERISTICS

QEA

(input)

Ungated

Index

QEB

(input)

TQ55

Index Internal

Position Counter

Reset

TQ50

TQ51

TABLE 31-31: QEI INDEX PULSE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Max Units Conditions

TQ50 TqIL Filter Time to Recognize Low,

with Digital Filter

3 * N * TCY — ns N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 2)

TQ51 TqiH Filter Time to Recognize High,

with Digital Filter

3 * N * TCY — ns N = 1, 2, 4, 16, 32, 64,

128 and 256 (Note 2)

TQ55 Tqidxr Index Pulse Recognized to Position

Counter Reset (ungated index)

3 TCY —ns —

Note 1: These parameters are characterized but not tested in manufacturing.

2: Alignment of index pulses to QEA and QEB is shown for position counter Reset timing only. Shown for

forward direction only (QEA leads QEB). Same timing applies for reverse direction (QEA lags QEB) but

index pulse recognition occurs on falling edge.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-32: SPIx MAXIMUM DATA/CLOCK RATE SUMMARY

FIGURE 31-14: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY CKE = 0) TIMING

CHARACTERISTICS

FIGURE 31-15: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY CKE = 1) TIMING

CHARACTERISTICS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Maximum

Data Rate

Master

Transmit Only

(Half-Duplex)

Master

Transmit/Receive

(Full-Duplex)

Slave

Transmit/Receive

(Full-Duplex)

CKE CKP SMP

15 Mhz Table 31-33 ——0,10,10,1

9 Mhz — Table 31-34 —10,11

9 Mhz — Table 31-35 —00,11

15 Mhz — — Table 31-36 100

11 Mhz — — Table 31-37 110

15 Mhz — — Table 31-38 010

11 Mhz — — Table 31-39 000

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SP10

SP21

SP20

SP35

SP20

SP21

MSb LSb

Bit 14 - - - - - -1

SP30, SP31

Note: Refer to Figure 31-1 for load conditions.

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SP10

SP21

SP20

SP35

SP20

SP21

MSb LSb

Bit 14 - - - - - -1

SP30, SP31

Note: Refer to Figure 31-1 for load conditions.

SP36

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-33: SPIx MASTER MODE (HALF-DUPLEX, TRANSMIT ONLY) TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP10 TscP Maximum SCK Frequency — — 15 MHz See Note 3

SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32

and Note 4

SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—620ns —

SP36 TdiV2scH,

TdiV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 66.7 ns. Therefore, the clock generated in Master mode must not

violate this specification.

4: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-16: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = X, SMP = 1) TIMING

CHARACTERISTICS

TABLE 31-34: SPIx MASTER MODE (FULL-DUPLEX, CKE = 1, CKP = x, SMP = 1) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP10 TscP Maximum SCK Frequency — — 9 MHz See Note 3

SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32

and Note 4

SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

— 6 20 ns —

SP36 TdoV2sc,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data

Input to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 111 ns. The clock generated in Master mode must not violate this

specification.

4: Assumes 50 pF load on all SPIx pins.

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SP10

SP21

SP20

SP35

SP20

SP21

MSb LSb

Bit 14 - - - - - -1

SP30, SP31

Note: Refer to Figure 31-1 for load conditions.

SP36

SP41

MSb In LSb In

Bit 14 - - - -1

SDIx

SP40

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-17: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = X, SMP = 1) TIMING

CHARACTERISTICS

TABLE 31-35: SPIx MASTER MODE (FULL-DUPLEX, CKE = 0, CKP = x, SMP = 1) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP10 TscP Maximum SCK Frequency — — 9 MHz -40ºC to +125ºC and

see Note 3

SP20 TscF SCKx Output Fall Time — — — ns See parameter DO32

and Note 4

SP21 TscR SCKx Output Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

— 6 20 ns —

SP36 TdoV2scH,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data

Input to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 111 ns. The clock generated in Master mode must not violate this

specification.

4: Assumes 50 pF load on all SPIx pins.

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SDIx

SP10

SP40 SP41

SP21

SP20

SP35

SP20

SP21

MSb LSb

Bit 14 - - - - - -1

MSb In LSb In

Bit 14 - - - -1

SP30, SP31

Note: Refer to Figure 31-1 for load conditions.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-18: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 0, SMP = 0) TIMING

CHARACTERISTICS

SSx

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SDI

SP50

SP60

SDIx

SP30,SP31

MSb Bit 14 - - - - - -1 LSb

SP51

MSb In Bit 14 - - - -1 LSb In

SP35

SP52

SP73

SP72

SP73

SP70

SP40

SP41

Note: Refer to Figure 31-1 for load conditions.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-36: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 0, SMP = 0) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP70 TscP Maximum SCK Input Frequency — — 15 MHz See Note 3

SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32

and Note 4

SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—620ns —

SP36 TdoV2scH,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP50 TssL2scH,

TssL2scL

SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —

SP51 TssH2doZ SSx ↑ to SDOx Output

High-Impedance(4)

10 — 50 ns —

SP52 TscH2ssH

TscL2ssH

SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4

SP60 TssL2doV SDOx Data Output Valid after

SSx Edge

——50ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 66.7 ns. Therefore, the SCK clock generated by the Master must

not violate this specification.

4: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-19: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 1, SMP = 0) TIMING

CHARACTERISTICS

SSx

SCKx

(CKP = 0)

SCKx

(CKP = 1)

SDOx

SDI

SP50

SP60

SDIx

SP30,SP31

MSb Bit 14 - - - - - -1 LSb

SP51

MSb In Bit 14 - - - -1 LSb In

SP35

SP52

SP73

SP72

SP73

SP70

SP40

SP41

Note: Refer to Figure 31-1 for load conditions.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-37: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 1, CKP = 1, SMP = 0) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP70 TscP Maximum SCK Input Frequency — — 11 MHz See Note 3

SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32

and Note 4

SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—620ns —

SP36 TdoV2scH,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP50 TssL2scH,

TssL2scL

SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —

SP51 TssH2doZ SSx ↑ to SDOx Output

High-Impedance(4)

10 — 50 ns —

SP52 TscH2ssH

TscL2ssH

SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4

SP60 TssL2doV SDOx Data Output Valid after

SSx Edge

——50ns —

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 91 ns. Therefore, the SCK clock generated by the Master must not

violate this specification.

4: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-20: SPIx SLAVE MODE (FULL-DUPLEX CKE = 0, CKP = 1, SMP = 0) TIMING

CHARACTERISTICS

SSX

SCKX

(CKP = 0)

SCKX

(CKP = 1)

SDOX

SP50

SP40

SP41

SP30,SP31 SP51

SP35

MSb LSb

Bit 14 - - - - - -1

MSb In Bit 14 - - - -1 LSb In

SP52

SP73

SP72

SP73

SP70

Note: Refer to Figure 31-1 for load conditions.

SDIX

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-38: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 1, SMP = 0) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP70 TscP Maximum SCK Input Frequency — — 15 MHz See Note 3

SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32

and Note 4

SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—620ns —

SP36 TdoV2scH,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP50 TssL2scH,

TssL2scL

SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —

SP51 TssH2doZ SSx ↑ to SDOx Output

High-Impedance(4)

10 — 50 ns —

SP52 TscH2ssH

TscL2ssH

SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 66.7 ns. Therefore, the SCK clock generated by the Master must

not violate this specification.

4: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-21: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 0, SMP = 0) TIMING

CHARACTERISTICS

SSX

SCKX

(CKP = 0)

SCKX

(CKP = 1)

SDOX

SP50

SP40

SP41

SP30,SP31 SP51

SP35

MSb LSb

Bit 14 - - - - - -1

MSb In Bit 14 - - - -1 LSb In

SP52

SP73

SP72

SP73

SP70

Note: Refer to Figure 31-1 for load conditions.

SDIX

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-39: SPIx SLAVE MODE (FULL-DUPLEX, CKE = 0, CKP = 0, SMP = 0) TIMING

REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

SP70 TscP Maximum SCK Input Frequency — — 11 MHz See Note 3

SP72 TscF SCKx Input Fall Time — — — ns See parameter DO32

and Note 4

SP73 TscR SCKx Input Rise Time — — — ns See parameter DO31

and Note 4

SP30 TdoF SDOx Data Output Fall Time — — — ns See parameter DO32

and Note 4

SP31 TdoR SDOx Data Output Rise Time — — — ns See parameter DO31

and Note 4

SP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—620ns —

SP36 TdoV2scH,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

30 — — ns —

SP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

30 — — ns —

SP50 TssL2scH,

TssL2scL

SSx ↓ to SCKx ↑ or SCKx Input 120 — — ns —

SP51 TssH2doZ SSx ↑ to SDOx Output

High-Impedance(4)

10 — 50 ns —

SP52 TscH2ssH

TscL2ssH

SSx after SCKx Edge 1.5 TCY + 40 — — ns See Note 4

Note 1: These parameters are characterized, but are not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.

3: The minimum clock period for SCKx is 91 ns. Therefore, the SCK clock generated by the Master must not

violate this specification.

4: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-22: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (MASTER MODE)

FIGURE 31-23: I2Cx BUS DATA TIMING CHARACTERISTICS (MASTER MODE)

IM31 IM34

SCLx

SDAx

Start

Condition

Stop

Condition

IM30 IM33

Note: Refer to Figure 31-1 for load conditions.

IM11 IM10 IM33

IM11

IM10

IM20

IM26 IM25

IM40 IM40 IM45

IM21

SCLx

SDAx

Out

Note: Refer to Figure 31-1 for load conditions.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-40: I2Cx BUS DATA TIMING REQUIREMENTS (MASTER MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min(1) Max Units Conditions

IM10 TLO:SCL Clock Low Time 100 kHz mode TCY/2 (BRG + 1) — μs—

400 kHz mode TCY/2 (BRG + 1) — μs—

1 MHz mode(2) TCY/2 (BRG + 1) — μs—

IM11 THI:SCL Clock High Time 100 kHz mode TCY/2 (BRG + 1) — μs—

400 kHz mode TCY/2 (BRG + 1) — μs—

1 MHz mode(2) TCY/2 (BRG + 1) — μs—

IM20 TF:SCL SDAx and SCLx

Fall Time

100 kHz mode — 300 ns CB is specified to be

from 10 to 400 pF

400 kHz mode 20 + 0.1 CB300 ns

1 MHz mode(2) — 100 ns

IM21 TR:SCL SDAx and SCLx

Rise Time

100 kHz mode — 1000 ns CB is specified to be

from 10 to 400 pF

400 kHz mode 20 + 0.1 CB300 ns

1 MHz mode(2) — 300 ns

IM25 TSU:DAT Data Input

Setup Time

100 kHz mode 250 — ns —

400 kHz mode 100 — ns

1 MHz mode(2) 40 — ns

IM26 THD:DAT Data Input

Hold Time

100 kHz mode 0 — μs—

400 kHz mode 0 0.9 μs

1 MHz mode(2) 0.2 — μs

IM30 TSU:STA Start Condition

Setup Time

100 kHz mode TCY/2 (BRG + 1) — μs Only relevant for

Repeated Start

condition

400 kHz mode TCY/2 (BRG + 1) — μs

1 MHz mode(2) TCY/2 (BRG + 1) — μs

IM31 THD:STA Start Condition

Hold Time

100 kHz mode TCY/2 (BRG + 1) — μs After this period the

first clock pulse is

generated

400 kHz mode TCY/2 (BRG + 1) — μs

1 MHz mode(2) TCY/2 (BRG + 1) — μs

IM33 TSU:STO Stop Condition

Setup Time

100 kHz mode TCY/2 (BRG + 1) — μs—

400 kHz mode TCY/2 (BRG + 1) — μs

1 MHz mode(2) TCY/2 (BRG + 1) — μs

IM34 THD:STO Stop Condition 100 kHz mode TCY/2 (BRG + 1) — ns —

Hold Time 400 kHz mode TCY/2 (BRG + 1) — ns

1 MHz mode(2) TCY/2 (BRG + 1) — ns

IM40 TAA:SCL Output Valid

From Clock

100 kHz mode — 3500 ns —

400 kHz mode — 1000 ns —

1 MHz mode(2) — 400 ns —

IM45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — μs Time bus must be free

before a new

transmission can start

400 kHz mode 1.3 — μs

1 MHz mode(2) 0.5 — μs

IM50 CBBus Capacitive Loading — 400 pF —

IM51 TPGD Pulse Gobbler Delay 65 390 ns See Note 3

Note 1: BRG is the value of the I2C Baud Rate Generator. Refer to Section 19. “Inter-Integrated Circuit™

(I2C™)” (DS70195) in the “dsPIC33F/PIC24H Family Reference Manual”. Please see the Microchip web

site for the latest dsPIC33F/PIC24H Family Reference Manual sections.

2: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).

3: Typical value for this parameter is 130 ns.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-24: I2Cx BUS START/STOP BITS TIMING CHARACTERISTICS (SLAVE MODE)

FIGURE 31-25: I2Cx BUS DATA TIMING CHARACTERISTICS (SLAVE MODE)

IS31 IS34

SCLx

SDAx

Start

Condition

Stop

Condition

IS30 IS33

IS30 IS31 IS33

IS11

IS10

IS20

IS26 IS25

IS40 IS40 IS45

IS21

SCLx

SDAx

Out

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-41: I2Cx BUS DATA TIMING REQUIREMENTS (SLAVE MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param. Symbol Characteristic Min Max Units Conditions

IS10 TLO:SCL Clock Low Time 100 kHz mode 4.7 — μs Device must operate at a

minimum of 1.5 MHz

400 kHz mode 1.3 — μs Device must operate at a

minimum of 10 MHz

1 MHz mode(1) 0.5 — μs—

IS11 THI:SCL Clock High Time 100 kHz mode 4.0 — μs Device must operate at a

minimum of 1.5 MHz

400 kHz mode 0.6 — μs Device must operate at a

minimum of 10 MHz

1 MHz mode(1) 0.5 — μs—

IS20 TF:SCL SDAx and SCLx

Fall Time

100 kHz mode — 300 ns CB is specified to be from

10 to 400 pF

400 kHz mode 20 + 0.1 CB300 ns

1 MHz mode(1) — 100 ns

IS21 TR:SCL SDAx and SCLx

Rise Time

100 kHz mode — 1000 ns CB is specified to be from

10 to 400 pF

400 kHz mode 20 + 0.1 CB300 ns

1 MHz mode(1) — 300 ns

IS25 TSU:DAT Data Input

Setup Time

100 kHz mode 250 — ns —

400 kHz mode 100 — ns

1 MHz mode(1) 100 — ns

IS26 THD:DAT Data Input

Hold Time

100 kHz mode 0 — μs—

400 kHz mode 0 0.9 μs

1 MHz mode(1) 00.3μs

IS30 TSU:STA Start Condition

Setup Time

100 kHz mode 4.7 — μs Only relevant for Repeated

Start condition

400 kHz mode 0.6 — μs

1 MHz mode(1) 0.25 — μs

IS31 THD:STA Start Condition

Hold Time

100 kHz mode 4.0 — μs After this period, the first

clock pulse is generated

400 kHz mode 0.6 — μs

1 MHz mode(1) 0.25 — μs

IS33 TSU:STO Stop Condition

Setup Time

100 kHz mode 4.7 — μs—

400 kHz mode 0.6 — μs

1 MHz mode(1) 0.6 — μs

IS34 THD:ST

Stop Condition

Hold Time

100 kHz mode 4000 — ns —

400 kHz mode 600 — ns

1 MHz mode(1) 250 ns

IS40 TAA:SCL Output Valid

From Clock

100 kHz mode 0 3500 ns —

400 kHz mode 0 1000 ns

1 MHz mode(1) 0 350 ns

IS45 TBF:SDA Bus Free Time 100 kHz mode 4.7 — μs Time bus must be free

before a new transmission

can start

400 kHz mode 1.3 — μs

1 MHz mode(1) 0.5 — μs

IS50 CBBus Capacitive Loading — 400 pF —

Note 1: Maximum pin capacitance = 10 pF for all I2Cx pins (for 1 MHz mode only).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-26: ECAN MODULE I/O TIMING CHARACTERISTICS

TABLE 31-42: ECAN MODULE I/O TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C

Param

No. Symbol Characteristic(1) Min Typ(2) Max Units Conditions

CA10 TioF Port Output Fall Time — — — ns See parameter D032

CA11 TioR Port Output Rise Time — — — ns See parameter D031

CA20 Tcwf Pulse Width to Trigger

CAN Wake-up Filter

120 — — ns —

Note 1: These parameters are characterized but not tested in manufacturing.

2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

CiTx Pin

(output)

CA10 CA11

Old Value New Value

CA20

CiRx Pin

(input)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-43: ADC MODULE SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Device Supply

AD01 AVDD Module VDD Supply Greater of

VDD – 0.3

or 3.0

— Lesser of

VDD + 0.3

or 3.6

—

AD02 AVSS Module VSS Supply VSS – 0.3 — VSS + 0.3 V —

Reference Inputs

AD05 VREFH Reference Voltage High AVSS + 2.5 — AVDD V

AD05a 3.0 — 3.6 V VREFH = AVDD

VREFL = AVSS = 0

AD06 VREFL Reference Voltage Low AVSS —AVDD – 2.5 V

AD06a 0 — 0 V VREFH = AVDD

VREFL = AVSS = 0

AD07 VREF Absolute Reference

Voltage

2.5 — 3.6 V VREF = VREFH - VREFL

AD08 IREF Current Drain — — 10 μA ADC off

AD09 IAD Operating Current —

—

7.0

2.7

9.0

3.2

ADC operating in 10-bit

mode, see Note 1

ADC operating in 12-bit

mode, see Note 1

Analog Input

AD12 VINH Input Voltage Range VINH VINL —VREFH V This voltage reflects Sample

and Hold Channels 0, 1, 2,

and 3 (CH0-CH3), positive

input

AD13 VINL Input Voltage Range VINL VREFL —AVSS + 1V V This voltage reflects Sample

and Hold Channels 0, 1, 2,

and 3 (CH0-CH3), negative

input

AD17 RIN Recommended

Impedance of Analog

Voltage Source

—

200

10-bit ADC

12-bit ADC

Note 1: These parameters are not characterized or tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-44: ADC MODULE SPECIFICATIONS (12-BIT MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

ADC Accuracy (12-bit Mode) – Measurements with external VREF+/VREF-

AD20a Nr Resolution(1) 12 data bits bits

AD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = VREFL = 0V, AVDD

= VREFH = 3.6V

AD22a DNL Differential Nonlinearity >-1 — <1 LSb VINL = AVSS = VREFL = 0V, AVDD

= VREFH = 3.6V

AD23a GERR Gain Error — 3.4 10 LSb VINL = AVSS = VREFL = 0V, AVDD

= VREFH = 3.6V

AD24a EOFF Offset Error — 0.9 5 LSb VINL = AVSS = VREFL = 0V, AVDD

= VREFH = 3.6V

AD25a — Monotonicity — — — — Guaranteed

ADC Accuracy (12-bit Mode) – Measurements with internal VREF+/VREF-

AD20a Nr Resolution(1) 12 data bits bits

AD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD22a DNL Differential Nonlinearity >-1 — <1 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD23a GERR Gain Error 2 10.5 20 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD24a EOFF Offset Error 2 3.8 10 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD25a — Monotonicity — — — — Guaranteed

Dynamic Performance (12-bit Mode)

AD30a THD Total Harmonic Distortion — — -75 dB —

AD31a SINAD Signal to Noise and

Distortion

68.5 69.5 — dB —

AD32a SFDR Spurious Free Dynamic

Range

80 — — dB —

AD33a FNYQ Input Signal Bandwidth — — 250 kHz —

AD34a ENOB Effective Number of Bits 11.09 11.3 — bits —

Note 1: Injection currents > |0| can affect the ADC results by approximately 4 to 6 counts (i.e., VIH source > (VDD +

0.3V) or VIL source < (VSS – 0.3V).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-45: ADC MODULE SPECIFICATIONS (10-BIT MODE)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

ADC Accuracy (10-bit Mode) – Measurements with external VREF+/VREF-

AD20b Nr Resolution(1) 10 data bits bits

AD21b INL Integral Nonlinearity -1.5 — +1.5 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

AD22b DNL Differential Nonlinearity >-1 — <1 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

AD23b GERR Gain Error — 3 6 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

AD24b EOFF Offset Error — 2 5 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

AD25b — Monotonicity — — — — Guaranteed

ADC Accuracy (10-bit Mode) – Measurements with internal VREF+/VREF-

AD20b Nr Resolution(1) 10 data bits bits

AD21b INL Integral Nonlinearity -1 — +1 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD22b DNL Differential Nonlinearity >-1 — <1 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD23b GERR Gain Error 3 7 15 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD24b EOFF Offset Error 1.5 3 7 LSb VINL = AVSS = 0V, AVDD = 3.6V

AD25b — Monotonicity — — — — Guaranteed

Dynamic Performance (10-bit Mode)

AD30b THD Total Harmonic Distortion — — -64 dB —

AD31b SINAD Signal to Noise and

Distortion

57 58.5 — dB —

AD32b SFDR Spurious Free Dynamic

Range

72 — — dB —

AD33b FNYQ Input Signal Bandwidth — — 550 kHz —

AD34b ENOB Effective Number of Bits 9.16 9.4 — bits —

Note 1: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-27: ADC CONVERSION (12-BIT MODE) TIMING CHARACTERISTICS

(ASAM = 0, SSRC<2:0> = 000)

AD55

TSAMP

Clear SAMPSet SAMP

AD61

ADCLK

Instruction

SAMP

AD60

DONE

AD1IF

1 2 3 4 5 6 87

1– Software sets AD1CON. SAMP to start sampling.

2– Sampling starts after discharge period. TSAMP is described in

3– Software clears AD1CON. SAMP to start conversion.

4– Sampling ends, conversion sequence starts.

5– Convert bit 11.

9– One TAD for end of conversion.

AD50

6– Convert bit 10.

7– Convert bit 1.

8– Convert bit 0.

Execution

“dsPIC33F/PIC24H Family Reference Manual”.

Section 28. “10/12-bit ADC without DMA” (DS70210) in the

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-46: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Clock Parameters

AD50 TAD ADC Clock Period 117.6 — — ns —

AD51 tRC ADC Internal RC Oscillator

Period

— 250 — ns —

Conversion Rate

AD55 tCONV Conversion Time — 14 TAD ns —

AD56 FCNV Throughput Rate — — 500 Ksps —

AD57 TSAMP Sample Time 3 TAD — — — —

Timing Parameters

AD60 tPCS Conversion Start from Sample

Trigger(2)

2 TAD —3 TAD — Auto convert trigger not

selected

AD61 tPSS Sample Start from Setting

Sample (SAMP) bit(2)

2 TAD —3 TAD ——

AD62 tCSS Conversion Completion to

Sample Start (ASAM = 1)(2)

— 0.5 TAD —— —

AD63 tDPU Time to Stabilize Analog Stage

from ADC Off to ADC On(2)

——20μs—

Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz may affect linearity

performance, especially at elevated temperatures.

2: These parameters are characterized but not tested in manufacturing.

3: The tDPU is the time required for the ADC module to stabilize at the appropriate level when the module is

turned on (AD1CON1<ADON>=‘1’). During this time, the ADC result is indeterminate.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-28: ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS

(CHPS<1:0> = 01, SIMSAM = 0, ASAM = 0, SSRC<2:0> = 000)

FIGURE 31-29: ADC CONVERSION (10-BIT MODE) TIMING CHARACTERISTICS (CHPS<1:0> = 01,

SIMSAM = 0, ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> = 00001)

AD55

TSAMP

Clear SAMPSet SAMP

AD61

ADCLK

Instruction

SAMP

AD60

DONE

AD1IF

1 2 3 4 5 6 8 5 6 7

1– Software sets AD1CON. SAMP to start sampling.

2– Sampling starts after discharge period. TSAMP is described in

3– Software clears AD1CON. SAMP to start conversion.

4– Sampling ends, conversion sequence starts.

5– Convert bit 9.

8– One TAD for end of conversion.

AD50

AD55

6– Convert bit 8.

7– Convert bit 0.

Execution

“dsPIC33F/PIC24H Family Reference Manual”.

Section 28. “10/12-bit ADC without DMA” (DS70210) in the

1 2 3 4 5 6 4 5 6 8

1– Software sets AD1CON. ADON to start AD operation.

2– Sampling starts after discharge period. TSAMP is described in

3– Convert bit 9.

4– Convert bit 8.

5– Convert bit 0.

7 3

6– One T

AD for end of conversion.

7– Begin conversion of next channel.

8– Sample for time specified by SAMC<4:0>.

ADCLK

Instruction Set ADON

Execution

SAMP

TSAMP

AD1IF

DONE

AD55 AD55 TSAMP AD55

AD50

Section 28. “10/12-bit ADC without DMA” (DS70210) in the

“dsPIC33F/PIC24H Family Reference Manual”.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-48: AUDIO DAC MODULE SPECIFICATIONS

TABLE 31-47: ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ(1) Max Units Conditions

Clock Parameters

AD50 TAD ADC Clock Period 76 — — ns —

AD51 tRC ADC Internal RC Oscillator Period —250 —ns —

Conversion Rate

AD55 tCONV Conversion Time —12 TAD — — —

AD56 FCNV Throughput Rate — — 1.1 Msps —

AD57 TSAMP Sample Time 2 TAD — — — —

Timing Parameters

AD60 tPCS Conversion Start from Sample

Trigger(1)

2 TAD —3 TAD —Auto-Convert Trigger

not selected

AD61 tPSS Sample Start from Setting

Sample (SAMP) bit(1)

2 TAD —3 TAD — —

AD62 tCSS Conversion Completion to

Sample Start (ASAM = 1)(1)

—0.5 TAD — — —

AD63 tDPU Time to Stabilize Analog Stage

from ADC Off to ADC On(1)

— — 20 μs—

Note 1: These parameters are characterized but not tested in manufacturing.

2: Because the sample caps will eventually lose charge, clock rates below 10 kHz may affect linearity

performance, especially at elevated temperatures.

3: The tDPU is the time required for the ADC module to stabilize at the appropriate level when the module is

turned on (AD1CON1<ADON>=‘1’). During this time, the ADC result is indeterminate.

AC/DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Clock Parameters

DA01 VOD+ Positive Output Differential

Voltage

11.152 VVOD+ = VDACH - VDACL

See Note 1,2

DA02 VOD- Negative Output Differential

Voltage

-2 -1.15 -1 V VOD- = VDACL - VDACH

See Note 1,2

DA03 VRES Resolution — 16 — bits —

DA04 GERR Gain Error — 3.1 — % —

DA08 FDAC Clock frequency — — 25.6 MHz —

DA09 FSAMP Sample Rate 0 — 100 kHz —

DA10 FINPUT Input data frequency 0 — 45 kHz Sampling frequency = 100 kHz

DA11 TINIT Initialization period 1024 — — Clks Time before first sample

DA12 SNR Signal-to-Noise Ratio — 61 dB Sampling frequency = 96 kHz

Note 1: Measured VDACH and VDACL output with respect to VSS, with 15 µA load and FORM bit (DACXCON<8>) = 0.

2: This parameter is tested at -40°C ≤ TA ≤ +85°C only.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-49: COMPARATOR TIMING SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

300 TRESP Response Time(1,2) — 150 400 ns —

301 TMC2OV Comparator Mode Change

to Output Valid(1)

——10μs—

Note 1: Parameters are characterized but not tested.

2: Response time measured with one comparator input at (VDD - 1.5)/2, while the other input transitions from

VSS to VDD.

TABLE 31-50: COMPARATOR MODULE SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

D300 VIOFF Input Offset Voltage(1) —±10—mV —

D301 VICM Input Common Mode Voltage(1) 0—AVDD-1.5V V —

D302 CMRR Common Mode Rejection Ratio(1) -54 — — dB —

Note 1: Parameters are characterized but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-30: PARALLEL SLAVE PORT TIMING DIAGRAM

TABLE 31-51: COMPARATOR REFERENCE VOLTAGE SETTLING TIME SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

VR310 TSET Settling Time(1) ——10μs—

Note 1: Setting time measured while CVRR = 1 and CVR3:CVR0 bits transition from ‘0000’ to ‘1111’.

TABLE 31-52: COMPARATOR REFERENCE VOLTAGE SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

VRD310 CVRES Resolution CVRSRC/24 — CVRSRC/32 LSb —

VRD311 CVRAA Absolute Accuracy — — 0.5 LSb —

VRD312 CVRUR Unit Resistor Value (R) — 2k — Ω—

PS3

PS4

PS1

PS2

PMD<7:0>

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-31: PARALLEL MASTER PORT READ TIMING DIAGRAM

TABLE 31-53: SETTING TIME SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Symbol Characteristic Min Typ Max Units Conditions

PS1 TdtV2wrH Data in Valid before WR or CS

Inactive (setup time)

20 — — ns —

PS2 TwrH2dtI WR or CS Inactive to Data-In

Invalid (hold time)

20 — — ns —

PS3 TrdL2dtV RD and CS to Active Data-Out

Valid

— — 80 ns —

PS4 TrdH2dtI RD Active or CS Inactive to

Data-Out Invalid

10 — 30 ns —

P1 P2 P3 P4 P1 P2 P3 P4 P1 P2

System

PMA<13:8>

PMD<7:0>

Clock

PMRD

PMALL/PMALH

PMCS1

Address

Address <7:0> Data

PM2 PM3

PM6 PM7

PM5

PM1

PMWR

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 31-32: PARALLEL MASTER PORT WRITE TIMING DIAGRAM

TABLE 31-54: PARALLEL MASTER PORT READ TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Characteristic Min Typ Max Units Conditions

PM1 PMALL/PMALH Pulse Width — 0.5 TCY —ns —

PM2 Address Out Valid to PMALL/PMALH Invalid

(address setup time)

— 0.75 TCY —ns —

PM3 PMALL/PMALH Invalid to Address Out Invalid

(address hold time)

— 0.25 TCY —ns —

PM5 PMRD Pulse Width — 0.5 TCY —ns —

PM6 PMRD or PMENB Active to Data In Valid (data

setup time)

150 — — ns —

PM7 PMRD or PMENB Inactive to Data In Invalid

(data hold time)

——5ns —

P1 P2 P3 P4 P1 P2 P3 P4 P1 P2

System

PMA<13:8>

PMD<7:0>

Clock

PMWR

PMALL/PMALH

PMCS1

Address

Address <7:0> Data

PM12

PM13

PM16

Data

PM11

PMRD

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 31-56: DMA READ/WRITE TIMING REQUIREMENTS

TABLE 31-55: PARALLEL MASTER PORT WRITE TIMING REQUIREMENTS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Characteristic Min Typ Max Units Conditions

PM11 PMWR Pulse Width — 0.5 TCY —ns —

PM12 Data Out Valid before PMWR or PMENB goes

Inactive (data setup time)

———ns —

PM13 PMWR or PMEMB Invalid to Data Out Invalid

(data hold time)

———ns —

PM16 PMCSx Pulse Width TCY - 5 — — ns —

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +85°C for Industrial

-40°C ≤ TA ≤ +125°C for Extended

Param

No. Characteristic Min Typ Max Units Conditions

DM1 DMA Read/Write Cycle Time — — 1 TCY ns —

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

32.0 HIGH TEMPERATURE ELECTRICAL CHARACTERISTICS

This section provides an overview of dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 electrical characteristics for devices operating in an ambient temperature range of -40°C to +150°C.

The specifications between -40°C to +150°C are identical to those shown in Section 31.0 “Electrical Characteristics”

for operation between -40°C to +125°C, with the exception of the parameters listed in this section.

Parameters in this section begin with an H, which denotes High temperature. For example, parameter DC10 in

Section 31.0 “Electrical Characteristics” is the Industrial and Extended temperature equivalent of HDC10.

Absolute maximum ratings for the dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and dsPIC33FJ128MCX02/

X04 high temperature devices are listed below. Exposure to these maximum rating conditions for extended periods can

affect device reliability. Functional operation of the device at these or any other conditions above the parameters

indicated in the operation listings of this specification is not implied.

Absolute Maximum Ratings(1)

Ambient temperature under bias(4) .........................................................................................................-40°C to +150°C

Storage temperature .............................................................................................................................. -65°C to +160°C

Voltage on VDD with respect to VSS ......................................................................................................... -0.3V to +4.0V

Voltage on any pin that is not 5V tolerant with respect to VSS(5) .................................................... -0.3V to (VDD + 0.3V)

Voltage on any 5V tolerant pin with respect to VSS when VDD < 3.0V(5) ....................................... -0.3V to (VDD + 0.3V)

Voltage on any 5V tolerant pin with respect to VSS when VDD ≥ 3.0V(5) .................................................... -0.3V to 5.6V

Maximum current out of VSS pin .............................................................................................................................60 mA

Maximum current into VDD pin(2).............................................................................................................................60 mA

Maximum junction temperature............................................................................................................................. +155°C

Maximum current sourced/sunk by any 2x I/O pin(3) ................................................................................................2 mA

Maximum current sourced/sunk by any 4x I/O pin(3) ................................................................................................4 mA

Maximum current sourced/sunk by any 8x I/O pin(3) ................................................................................................8 mA

Maximum current sunk by all ports combined ........................................................................................................70 mA

Maximum current sourced by all ports combined(2) ................................................................................................70 mA

Note 1: Stresses above those listed under “Absolute Maximum Ratings” can cause permanent damage to the

device. This is a stress rating only, and functional operation of the device at those or any other conditions

above those indicated in the operation listings of this specification is not implied. Exposure to maximum

rating conditions for extended periods can affect device reliability.

2: Maximum allowable current is a function of device maximum power dissipation (see Table 32-2).

3: Unlike devices at 125°C and below, the specifications in this section also apply to the CLKOUT, VREF+,

VREF-, SCLx, SDAx, PGCx and PGDx pins.

4: AEC-Q100 reliability testing for devices intended to operate at 150°C is 1,000 hours. Any design in which

the total operating time from 125°C to 150°C will be greater than 1,000 hours is not warranted without prior

written approval from Microchip Technology Inc.

5: Refer to the “Pin Diagrams” section for 5V tolerant pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

32.1 High Temperature DC Characteristics

TABLE 32-1: OPERATING MIPS VS. VOLTAGE

TABLE 32-2: THERMAL OPERATING CONDITIONS

TABLE 32-3: DC TEMPERATURE AND VOLTAGE SPECIFICATIONS

Characteristic VDD Range

(in Volts)

Temperature Range

(in °C)

Max MIPS

dsPIC33FJ32MC302/304,

dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04

— 3.0V to 3.6V(1) -40°C to +150°C 20

Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded

performance. Device functionality is tested but not characterized.

Rating Symbol Min Typ Max Unit

High Temperature Devices

Operating Junction Temperature Range TJ-40 — +155 °C

Operating Ambient Temperature Range TA-40 — +150 °C

Power Dissipation:

Internal chip power dissipation:

PINT = VDD x (IDD - Σ IOH) PDPINT + PI/OW

I/O Pin Power Dissipation:

I/O = Σ ({VDD - VOH} x IOH) + Σ (VOL x IOL)

Maximum Allowed Power Dissipation PDMAX (TJ - TA)/θJA W

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Parameter

No. Symbol Characteristic Min Typ Max Units Conditions

Operating Voltage

HDC10 Supply Voltage

VDD — 3.0 3.3 3.6 V -40°C to +150°C

Note 1: Device is functional at VBORMIN < VDD < VDDMIN. Analog modules such as the ADC will have degraded

performance. Device functionality is tested but not characterized.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-4: DC CHARACTERISTICS: POWER-DOWN CURRENT (IPD)

TABLE 32-5: DC CHARACTERISTICS: DOZE CURRENT (IDOZE)

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Parameter

No. Typical Max Units Conditions

Power-Down Current (IPD)

HDC60e 250 2000 μA +150°C 3.3V Base Power-Down Current(1,3)

HDC61c 3 5 μA +150°C 3.3V Watchdog Timer Current: ΔIWDT(2,4)

Note 1: Base IPD is measured with all peripherals and clocks shut down. All I/Os are configured as inputs and

pulled to VSS. WDT, etc., are all switched off, and VREGS (RCON<8>) = 1.

2: The Δ current is the additional current consumed when the module is enabled. This current should be

added to the base IPD current.

3: These currents are measured on the device containing the most memory in this family.

4: These parameters are characterized, but are not tested in manufacturing.

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Parameter

No. Typical(1) Max Doze

Ratio Units Conditions

HDC72a 39 45 1:2 mA

+150°C 3.3V 20 MIPSHDC72f 18 25 1:64 mA

HDC72g 18 25 1:128 mA

Note 1: Parameters with Doze ratios of 1:2 and 1:64 are characterized, but are not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-6: DC CHARACTERISTICS: I/O PIN OUTPUT SPECIFICATIONS

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High

Temperature

Param. Symbol Characteristic Min. Typ. Max. Units Conditions

DO10 VOL

Output Low Voltage

I/O Pins:

2x Sink Driver Pins - RA2, RA7-

RA10, RB10, RB11, RB7, RB4,

RC3-RC9

——0.4VIOL ≤ 1.8 mA, VDD = 3.3V

See Note 1

Output Low Voltage

I/O Pins:

4x Sink Driver Pins - RA0, RA1,

RB0-RB3, RB5, RB6, RB8, RB9,

RB12-RB15, RC0-RC2

——0.4VIOL ≤ 3.6 mA, VDD = 3.3V

See Note 1

Output Low Voltage

I/O Pins:

8x Sink Driver Pins - RA3, RA4

——0.4V IOL ≤ 6 mA, VDD = 3.3V

See Note 1

DO20 VOH

Output High Voltage

I/O Pins:

2x Source Driver Pins - RA2,

RA7-RA10, RB4, RB7, RB10,

RB11, RC3-RC9

2.4 — — V IOL ≥ -1.8 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

4x Source Driver Pins - RA0,

RA1, RB0-RB3, RB5, RB6, RB8,

RB9, RB12-RB15, RC0-RC2

2.4 — — V IOL ≥ -3 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

8x Source Driver Pins - RA4,

RA3

2.4 — — V IOL ≥ -6 mA, VDD = 3.3V

See Note 1

DO20A VOH1

Output High Voltage

I/O Pins:

2x Source Driver Pins - RA2,

RA7-RA10, RB4, RB7, RB10,

RB11, RC3-RC9

1.5 — —

IOH ≥ -1.9 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -1.85 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -1.4 mA, VDD = 3.3V

See Note 1

Output High Voltage

4x Source Driver Pins - RA0,

RA1, RB0-RB3, RB5, RB6, RB8,

RB9, RB12-RB15, RC0-RC2

1.5 — —

IOH ≥ -3.9 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -3.7 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -2 mA, VDD = 3.3V

See Note 1

Output High Voltage

I/O Pins:

8x Source Driver Pins - RA3,

RA4

1.5 — —

IOH ≥ -7.5 mA, VDD = 3.3V

See Note 1

2.0 — — IOH ≥ -6.8 mA, VDD = 3.3V

See Note 1

3.0 — — IOH ≥ -3 mA, VDD = 3.3V

See Note 1

Note 1: Parameters are characterized, but not tested.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-7: DC CHARACTERISTICS: PROGRAM MEMORY

DC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

Program Flash Memory

HD130 EPCell Endurance 10,000 — — E/W -40°C to +150°C(2)

HD134 TRETD Characteristic Retention 20 — — Year 1000 E/W cycles or less and no

other specifications are violated

Note 1: These parameters are assured by design, but are not characterized or tested in manufacturing.

2: Programming of the Flash memory is allowed up to 150°C.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

32.2 AC Characteristics and Timing

Parameters

The information contained in this section defines

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04

and dsPIC33FJ128MCX02/X04 AC characteristics and

timing parameters for high temperature devices.

However, all AC timing specifications in this section are

the same as those in Section 31.2 “AC

Characteristics and Timing Parameters”, with the

exception of the parameters listed in this section.

Parameters in this section begin with an H, which

denotes High temperature. For example, parameter

OS53 in Section 31.2 “AC Characteristics and

Timing Parameters” is the Industrial and Extended

temperature equivalent of HOS53.

TABLE 32-8: TEMPERATURE AND VOLTAGE SPECIFICATIONS – AC

FIGURE 32-1: LOAD CONDITIONS FOR DEVICE TIMING SPECIFICATIONS

TABLE 32-9: PLL CLOCK TIMING SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V

(unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Operating voltage VDD range as described in Table 32-1.

VDD/2

VSS

RL=464Ω

CL= 50 pF for all pins except OSC2

15 pF for OSC2 output

Load Condition 1 – for all pins except OSC2 Load Condition 2 – for OSC2

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

HOS53 DCLK CLKO Stability (Jitter)(1) -5 0.5 5 % Measured over 100 ms

period

Note 1: These parameters are characterized, but are not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-10: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS

TABLE 32-11: SPIx MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

HSP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—1025ns —

HSP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

28 — — ns —

HSP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

35 — — ns —

Note 1: These parameters are characterized but not tested in manufacturing.

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

HSP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

—1025ns —

HSP36 TdoV2sc,

TdoV2scL

SDOx Data Output Setup to

First SCKx Edge

35 — — ns —

HSP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

28 — — ns —

HSP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

35 — — ns —

Note 1: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-12: SPIx MODULE SLAVE MODE (CKE = 0) TIMING REQUIREMENTS

TABLE 32-13: SPIx MODULE SLAVE MODE (CKE = 1) TIMING REQUIREMENTS

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

HSP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

——35ns —

HSP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

25 — — ns —

HSP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input to

SCKx Edge

25 — — ns —

HSP51 TssH2doZ SSx ↑ to SDOx Output

High-Impedance

15 — 55 ns See Note 2

Note 1: These parameters are characterized but not tested in manufacturing.

2: Assumes 50 pF load on all SPIx pins.

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic(1) Min Typ Max Units Conditions

HSP35 TscH2doV,

TscL2doV

SDOx Data Output Valid after

SCKx Edge

— — 35 ns —

HSP40 TdiV2scH,

TdiV2scL

Setup Time of SDIx Data Input

to SCKx Edge

25 — — ns —

HSP41 TscH2diL,

TscL2diL

Hold Time of SDIx Data Input

to SCKx Edge

25 — — ns —

HSP51 TssH2doZ SSx ↑ to SDOX Output

High-Impedance

15 — 55 ns See Note 2

HSP60 TssL2doV SDOx Data Output Valid after

SSx Edge

— — 55 ns —

Note 1: These parameters are characterized but not tested in manufacturing.

2: Assumes 50 pF load on all SPIx pins.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-14: ADC MODULE SPECIFICATIONS

TABLE 32-15: ADC MODULE SPECIFICATIONS (12-BIT MODE)

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Reference Inputs

HAD08 IREF Current Drain —

—

250

—

600

μA

ADC operating, See Note 1

ADC off, See Note 1

Note 1: These parameters are not characterized or tested in manufacturing.

2: These parameters are characterized, but are not tested in manufacturing.

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

ADC Accuracy (12-bit Mode) – Measurements with External VREF+/VREF-(1)

HAD20a Nr Resolution(3) 12 data bits bits —

HAD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD23a GERR Gain Error -2 — 10 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD24a EOFF Offset Error -3 — 5 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

ADC Accuracy (12-bit Mode) – Measurements with Internal VREF+/VREF-(1)

HAD20a Nr Resolution(3) 12 data bits bits —

HAD21a INL Integral Nonlinearity -2 — +2 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD22a DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD23a GERR Gain Error 2 — 20 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD24a EOFF Offset Error 2 — 10 LSb VINL = AVSS = 0V, AVDD = 3.6V

Dynamic Performance (12-bit Mode)(2)

HAD33a FNYQ Input Signal Bandwidth — — 200 kHz —

Note 1: These parameters are characterized, but are tested at 20 ksps only.

2: These parameters are characterized by similarity, but are not tested in manufacturing.

3: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-16: ADC MODULE SPECIFICATIONS (10-BIT MODE)

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

ADC Accuracy (10-bit Mode) – Measurements with External VREF+/VREF-(1)

HAD20b Nr Resolution(3) 10 data bits bits —

HAD21b INL Integral Nonlinearity -3 — 3 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD23b GERR Gain Error -5 — 6 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

HAD24b EOFF Offset Error -1 — 5 LSb VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3.6V

ADC Accuracy (10-bit Mode) – Measurements with Internal VREF+/VREF-(1)

HAD20b Nr Resolution(3) 10 data bits bits —

HAD21b INL Integral Nonlinearity -2 — 2 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD22b DNL Differential Nonlinearity > -1 — < 1 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD23b GERR Gain Error -5 — 15 LSb VINL = AVSS = 0V, AVDD = 3.6V

HAD24b EOFF Offset Error -1.5 — 7 LSb VINL = AVSS = 0V, AVDD = 3.6V

Dynamic Performance (10-bit Mode)(2)

HAD33b FNYQ Input Signal Bandwidth — — 400 kHz —

Note 1: These parameters are characterized, but are tested at 20 ksps only.

2: These parameters are characterized by similarity, but are not tested in manufacturing.

3: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

TABLE 32-17: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS

TABLE 32-18: ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Clock Parameters

HAD50 TAD ADC Clock Period(1) 147 — — ns —

Conversion Rate

HAD56 FCNV Throughput Rate(1) — — 400 Ksps —

Note 1: These parameters are characterized but not tested in manufacturing.

CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature -40°C ≤ TA ≤ +150°C for High Temperature

Param

No. Symbol Characteristic Min Typ Max Units Conditions

Clock Parameters

HAD50 TAD ADC Clock Period(1) 104 — — ns —

Conversion Rate

HAD56 FCNV Throughput Rate(1) — — 800 Ksps —

Note 1: These parameters are characterized but not tested in manufacturing.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

32.0 DC AND AC DEVICE CHARACTERISTICS GRAPHS

FIGURE 32-1: VOH – 2x DRIVER PINS

FIGURE 32-2: VOH – 4x DRIVER PINS

FIGURE 32-3: VOH – 8x DRIVER PINS

FIGURE 32-4: VOH – 16x DRIVER PINS

Note: The graphs provided following this note are a statistical summary based on a limited number of samples and are provided for design guidance purposes only.

The performance characteristics listed herein are not tested or guaranteed. In some graphs, the data presented may be outside the specified operating range

(e.g., outside specified power supply range) and therefore, outside the warranted range.

-0.016

-0.014

-0.012

-0.010

-0.008

-0.006

-0.004

IOH (A)

-0.016

-0.014

-0.012

-0.010

-0.008

-0.006

-0.004

-0.002

0.000

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00

IOH (A)

VOH (V)

3.3V

3.6V

-0.030

-0.025

-0.020

-0.015

-0.010

IOH (A)

-0.030

-0.025

-0.020

-0.015

-0.010

-0.005

0.000

0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00

IOH (A)

VOH (V)

3.3V

3.6V

-0.040

-0.035

-0.030

-0.025

-0.020

-0.015

IOH (A)

-0.040

-0.035

-0.030

-0.025

-0.020

-0.015

-0.010

-0.005

0.000

0.00 1.00 2.00 3.00 4.00

IOH (A)

VOH (V)

3.3V

3.6V

-0.080

-0.070

-0.060

-0.050

-0.040

-0.030

-0.020

IOH (A)

-0.080

-0.070

-0.060

-0.050

-0.040

-0.030

-0.020

-0.010

0.000

0.00 1.00 2.00 3.00 4.00

IOH (A)

VOH (V)

3.3V

3.6V

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 32-5: VOL – 2x DRIVER PINS

FIGURE 32-6: VOL – 4x DRIVER PINS

FIGURE 32-7: VOL – 8x DRIVER PINS

FIGURE 32-8: VOL – 16x DRIVER PINS

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

IOL (A)

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

0.00 1.00 2.00 3.00 4.00

IOL (A)

VOL (V)

3.3V

3.6V

0.010

0.015

0.020

0.025

0.030

0.035

0.040

IOL (A)

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.00 1.00 2.00 3.00 4.00

IOL (A)

VOL (V)

3.3V

3.6V

0.020

0.030

0.040

0.050

0.060

IOL (A)

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.00 1.00 2.00 3.00 4.00

IOL (A)

VOL (V)

3.3V

3.6V

0.040

0.060

0.080

0.100

0.120

IOL (A)

0.000

0.020

0.040

0.060

0.080

0.100

0.120

0.00 1.00 2.00 3.00 4.00

IOL (A)

VOL (V)

3.3V

3.6V

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 32-9: TYPICAL IPD CURRENT @ VDD = 3.3V, +85ºC

FIGURE 32-10: TYPICAL IDD CURRENT @ VDD = 3.3V, +85ºC

FIGURE 32-11: TYPICAL IDOZE CURRENT @ VDD = 3.3V, +85ºC

FIGURE 32-12: TYPICAL IIDLE CURRENT @ VDD = 3.3V, +85ºC

400

600

800

1000

1200

IPD (uA)

200

400

600

800

1000

1200

-40-30-20-100 102030405060708090100110120

IPD (uA)

Temperature (Celsius)

IDD (mA)

0 5 10 15 20 25 30 35 40 45

IDD (mA)

MIPS

PMD = 0, no PLL

PMD = 0, with PLL

PMD = 1, no PLL

PMD = 1, with PLL

20.00

30.00

40.00

50.00

60.00

70.00

80.00

IDOZE Current (mA)

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

1:1 2:1 64:1 128:1

IDOZE Current (mA)

Doze Ratio

IIDLE Current (mA)

10 20 30 40

IIDLE Current (mA)

MIPS

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

FIGURE 32-13: TYPICAL FRC FREQUENCY @ VDD = 3.3V FIGURE 32-14: TYPICAL LPRC FREQUENCY @ VDD = 3.3V

7200

7300

7400

7500

-40-30-20-100 102030405060708090100110120

FRC Frequency (kHz)

Temperature (Celsius)

LPRC Frequency (kHz)

-40-30-20-10 0 102030405060708090100110120

LPRC Frequency (kHz)

Temperature (Celsius)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

33.0 PACKAGING INFORMATION

Legend: XX...X Customer-specific information

Y Year code (last digit of calendar year)

YY Year code (last 2 digits of calendar year)

WW Week code (week of January 1 is week ‘01’)

NNN Alphanumeric traceability code

Pb-free JEDEC designator for Matte Tin (Sn)

*This package is Pb-free. The Pb-free JEDEC designator ( )

can be found on the outer packaging for this package.

Note: If the full Microchip part number cannot be marked on one line, it is carried over to the next

line, thus limiting the number of available characters for customer-specific information.

28-Lead SPDIP

XXXXXXXXXXXXXXXXX

YYWWNNN

Example

dsPIC33FJ32MC

0730235

28-Lead SOIC (.300”)

XXXXXXXXXXXXXXXXXXXX

YYWWNNN

Example

dsPIC33FJ32MC

0730235

28-Lead QFN-S

XXXXXXXX

YYWWNNN

Example

33FJ32MC

302EMM

0730235

302-E/SP

302-E/SO

XXXXXXXXXX

44-Lead QFN

XXXXXXXXXX

YYWWNNN

dsPIC

Example

-E/ML

0730235

44-Lead TQFP

XXXXXXXXXX

YYWWNNN

33FJ32MC304

Example

dsPIC

-I/PT

0730235

33FJ32MC304

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

33.1 Package Details

28-Lead Skinny Plastic Dual In-Line (SP) – 300 mil Body [SPDIP]

Notes:

1. Pin 1 visual index feature may vary, but must be located within the hatched area.

2. § Significant Characteristic.

3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" per side.

4. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

Units INCHES

Dimension Limits MIN NOM MAX

Number of Pins N 28

Pitch e .100 BSC

Top to Seating Plane A – – .200

Molded Package Thickness A2 .120 .135 .150

Base to Seating Plane A1 .015 – –

Shoulder to Shoulder Width E .290 .310 .335

Molded Package Width E1 .240 .285 .295

Overall Length D 1.345 1.365 1.400

Tip to Seating Plane L .110 .130 .150

Lead Thickness c .008 .010 .015

Upper Lead Width b1 .040 .050 .070

Lower Lead Width b .014 .018 .022

Overall Row Spacing § eB – – .430

NOTE 1

Microchip Technology Drawing C04-070B

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28-Lead Plastic Small Outline (SO) – Wide, 7.50 mm Body [SOIC]

Notes:

1. Pin 1 visual index feature may vary, but must be located within the hatched area.

2. § Significant Characteristic.

3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.

4. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

REF: Reference Dimension, usually without tolerance, for information purposes only.

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

Units MILLMETERS

Dimension Limits MIN NOM MAX

Number of Pins N 28

Pitch e 1.27 BSC

Overall Height A – – 2.65

Molded Package Thickness A2 2.05 – –

Standoff § A1 0.10 – 0.30

Overall Width E 10.30 BSC

Molded Package Width E1 7.50 BSC

Overall Length D 17.90 BSC

Chamfer (optional) h 0.25 – 0.75

Foot Length L 0.40 – 1.27

Footprint L1 1.40 REF

Foot Angle Top φ0° – 8°

Lead Thickness c 0.18 – 0.33

Lead Width b 0.31 – 0.51

Mold Draft Angle Top α5° – 15°

Mold Draft Angle Bottom β5° – 15°

NOTE 1

123

Microchip Technology Drawing C04-052B

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

28-Lead Plastic Quad Flat, No Lead Package (MM) – 6x6x0.9 mm Body [QFN-S]

with 0.40 mm Contact Length

Notes:

1. Pin 1 visual index feature may vary, but must be located within the hatched area.

2. Package is saw singulated.

3. Dimensioning and tolerancing per ASME Y14.5M.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

REF: Reference Dimension, usually without tolerance, for information purposes only.

Note: For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

Units MILLIMETERS

Dimension Limits MIN NOM MAX

Number of Pins N 28

Pitch e 0.65 BSC

Overall Height A 0.80 0.90 1.00

Standoff A1 0.00 0.02 0.05

Contact Thickness A3 0.20 REF

Overall Width E 6.00 BSC

Exposed Pad Width E2 3.65 3.70 4.70

Overall Length D 6.00 BSC

Exposed Pad Length D2 3.65 3.70 4.70

Contact Width b 0.23 0.38 0.43

Contact Length L 0.30 0.40 0.50

Contact-to-Exposed Pad K 0.20 – –

EXPOSED

PAD

NOTE 1

TOP VIEW BOTTOM VIEW

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NOTE 1 NOTE 2

123

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BOTTOMVIEW

TOPVIEW

A3 A1

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NOTES:

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

APPENDIX A: REVISION HISTORY

Revision A (August 2007)

Initial release of this document.

Revision B (March 2008)

This revision includes minor typographical and

formatting changes throughout the data sheet text. In

addition, redundant information was removed that is

now available in the respective chapters of the

“dsPIC33F/PIC24H Family Reference Manual”, which

can be obtained from the Microchip web site

(www.microchip.com).

The major changes are referenced by their respective

section in the following table.

TABLE A-1: MAJOR SECTION UPDATES

Section Name Update Description

“High-Performance, 16-bit Digital Signal

Controllers”

Note 1 added to all pin diagrams (see “Pin Diagrams”)

Add External Interrupts column and Note 4 to the

“dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04 Controller Families” table

Section 1.0 “Device Overview” Updated parameters PMA0, PMA1 and PMD0 through PMPD7

(Table 1-1)

Section 3.0 “Memory Organization” Updated FAEN bits in Table 4-8

Section 6.0 “Interrupt Controller” IFS0-IFSO4 changed to IFSX (see Section 6.3.2 “IFSx”)

IEC0-IEC4 changed to IECX (see Section 6.3.3 “IECx”)

IPC0-IPC19 changed to IPCx (see Section 6.3.4 “IPCx”)

Section 7.0 “Direct Memory Access (DMA)” Updated parameter PMP (see Table 8-1)

Section 8.0 “Oscillator Configuration” Updated the third clock source item (External Clock) in

Section 8.1.1 “System Clock Sources”

Updated TUN<5:0> (OSCTUN<5:0>) bit description (see

Section 21.0 “10-bit/12-bit Analog-to-Digital

Converter (ADC1)”

Added Note 2 to Figure 21-3

Section 27.0 “Special Features” Added Note 2 to Figure 27-1

Added parameter FICD in Table 27-1

Added parameters BKBUG, COE, JTAGEN and ICS in Table 27-2

Added Note after second paragraph in Section 27.2 “On-Chip

Voltage Regulator”

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Section 30.0 “Electrical Characteristics” Updated Max MIPS for temperature range of -40ºC to +125ºC in

Table 30-1

Updated typical values in Thermal Packaging Characteristics in

Table 30-3

Added parameters DI11 and DI12 to Table 30-9

Updated minimum values for parameters D136 (TRW) and D137

(TPE) and removed typical values in Table 30-12

Added Extended temperature range to Table 30-13

Updated Note 2 in Table 30-38

Updated parameter AD63 and added Note 3 to Table 30-42 and

Table 30-43

TABLE A-1: MAJOR SECTION UPDATES (CONTINUED)

Section Name Update Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Revision C (May 2009)

This revision includes minor typographical and

formatting changes throughout the data sheet text.

Global changes include:

• Changed all instances of OSCI to OSC1 and

OSCO to OSC2

• Changed all instances of VDDCORE and VDDCORE/

VCAP to VCAP/VDDCORE

The other changes are referenced by their respective

section in the following table.

TABLE A-2: MAJOR SECTION UPDATES

Section Name Update Description

“High-Performance, 16-bit Digital

Signal Controllers”

Updated all pin diagrams to denote the pin voltage tolerance (see “Pin

Diagrams”).

Added Note 2 to the 28-Pin QFN-S and 44-Pin QFN pin diagrams, which

references pin connections to VSS.

Section 1.0 “Device Overview” Updated AVDD in the PINOUT I/O Descriptions (see Table 1-1).

Section 2.0 “Guidelines for Getting

Started with 16-bit Digital Signal

Controllers”

Added new section to the data sheet that provides guidelines on getting

started with 16-bit Digital Signal Controllers.

Section 3.0 “CPU” Updated CPU Core Block Diagram with a connection from the DSP Engine

to the Y Data Bus (see Figure 3-1).

Vertically extended the X and Y Data Bus lines in the DSP Engine Block

Diagram (see Figure 3-3).

Section 4.0 “Memory Organization” Updated Reset value for CORCON in the CPU Core Register Map (see

Table 4-1).

Removed the FLTA1IE bit (IEC3) from the Interrupt Controller Register Map

(see Table 4-4).

Updated bit locations for RPINR25 in the Peripheral Pin Select Input

Updated the Reset value for CLKDIV in the System Control Register Map

(see Table 4-36).

Section 5.0 “Flash Program

Memory”

Updated Section 5.3 “Programming Operations” with programming time

formula.

Section 9.0 “Oscillator

Configuration”

Updated the Oscillator System Diagram and added Note 2 (see Figure 9-1).

Updated default bit values for DOZE<2:0> and FRCDIV<2:0> in the Clock

Divisor (CLKDIV) Register (see Register 9-2).

Added a paragraph regarding FRC accuracy at the end of Section 9.1.1

“System Clock Sources”.

Added Note 3 to Section 9.2.2 “Oscillator Switching Sequence”.

Added Note 1 to the FRC Oscillator Tuning (OSCTUN) Register (see

Section 10.0 “Power-Saving

Features”

Added the following registers:

• PMD1: Peripheral Module Disable Control Register 1 (Register 10-1)

• PMD2: Peripheral Module Disable Control Register 2 (Register 10-2)

• PMD3: Peripheral Module Disable Control Register 3 (Register 10-3)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Section 11.0 “I/O Ports” Removed Table 11-1 and added reference to pin diagrams for I/O pin

availability and functionality.

Added paragraph on ADPCFG register default values to Section 11.3

“Configuring Analog Port Pins”.

Added Note box regarding PPS functionality with input mapping to

Section 11.6.2.1 “Input Mapping”.

Section 18.0 “Serial Peripheral

Interface (SPI)”

Added Note 2 and 3 to the SPIxCON1 register (see Register 18-2).

Section 20.0 “Universal

Asynchronous Receiver Transmitter

(UART)”

Updated the Notes in the UxMODE register (see Register 20-1).

Updated the UTXINV bit settings in the UxSTA register and added Note 1

(see Register 20-2).

Section 21.0 “Enhanced CAN

(ECAN™) Module”

Changed bit 11 in the ECAN Control Register 1 (CiCTRL1) to Reserved (see

Section 22.0 “10-bit/12-bit Analog-

to-Digital Converter (ADC1)”

Replaced the ADC1 Module Block Diagrams with new diagrams (see

Figure 22-1 and Figure 22-2).

Updated bit values for ADCS<7:0> and added Notes 1 and 2 to the ADC1

Control Register 3 (AD1CON3) (see Register 22-3).

Added Note 2 to the ADC1 Input Scan Select Register Low (AD1CSSL) (see

Added Note 2 to the ADC1 Port Configuration Register Low (AD1PCFGL)

(see Register 22-8).

Section 23.0 “Audio Digital-to-

Analog Converter (DAC)”

Updated the midpoint voltage in the last sentence of the first paragraph.

Updated the voltage swing values in the last sentence of the last paragraph

in Section 23.3 “DAC Output Format”.

Section 24.0 “Comparator Module” Updated the Comparator Voltage Reference Block Diagram

(see Figure 24-2).

Section 25.0 “Real-Time Clock and

Calendar (RTCC)”

Updated the minimum positive adjust value for CAL<7:0> in the RTCC

Calibration and Configuration (RCFGCAL) Register (see Register 25-1).

Section 28.0 “Special Features” Added Note 1 to the Device Configuration Register Map (see Table 28-1).

Updated Note 1 in the dsPIC33F Configuration Bits Description (see

Table 28-2).

TABLE A-2: MAJOR SECTION UPDATES (CONTINUED)

Section Name Update Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Section 31.0 “Electrical

Characteristics”

Updated Typical values for Thermal Packaging Characteristics (see

Table 31-3).

Updated Min and Max values for parameter DC12 (RAM Data Retention

Voltage) and added Note 4 (see Table 31-4).

Updated Power-Down Current Max values for parameters DC60b and

DC60c (see Table 31-7).

Updated Characteristics for I/O Pin Input Specifications (see Table 31-9).

Updated Program Memory values for parameters 136, 137 and 138

(renamed to 136a, 137a and 138a), added parameters 136b, 137b and

138b, and added Note 2 (see Table 31-12).

Added parameter OS42 (GM) to the External Clock Timing Requirements

(see Table 31-16).

Updated Watchdog Timer Time-out Period parameter SY20 (see

Table 31-21).

Removed VOMIN, renamed VOMAX to VO, and updated the Min and Max

values in the Audio DAC Module Specifications (see Table 31-44).

TABLE A-2: MAJOR SECTION UPDATES (CONTINUED)

Section Name Update Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Revision D (November 2009)

The revision includes the following global update:

• Added Note 2 to the shaded table that appears at

the beginning of each chapter. This new note

provides information regarding the availability of

registers and their associated bits

This revision also includes minor typographical and

formatting changes throughout the data sheet text.

All other major changes are referenced by their

respective section in the following table.

TABLE A-3: MAJOR SECTION UPDATES

Section Name Update Description

“High-Performance, 16-bit Digital Signal

Controllers”

Added information on high temperature operation (see “Operating

Range:”).

Section 11.0 “I/O Ports” Changed the reference to digital-only pins to 5V tolerant pins in the

second paragraph of Section 11.2 “Open-Drain Configuration”.

Section 20.0 “Universal Asynchronous

Receiver Transmitter (UART)”

Updated the two baud rate range features to: 10 Mbps to 38 bps at

40 MIPS.

Section 22.0 “10-bit/12-bit Analog-to-Digital

Converter (ADC1)”

Updated the ADC block diagrams (see Figure 22-1 and Figure 22-2).

Section 23.0 “Audio Digital-to-Analog

Converter (DAC)”

Removed last sentence of the first paragraph in the section.

Added a shaded note to Section 23.2 “DAC Module Operation”.

Updated Figure 23-2: “Audio DAC Output for Ramp Input

(Unsigned)”.

Section 28.0 “Special Features” Updated the second paragraph and removed the fourth paragraph in

Section 28.1 “Configuration Bits”.

Updated the Device Configuration Register Map (see Table 28-1).

Section 31.0 “Electrical Characteristics” Updated the Absolute Maximum Ratings for high temperature and

added Note 4.

Removed parameters DI26, DI28 and DI29 from the I/O Pin Input

Specifications (see Table 31-9).

Updated the SPIx Module Slave Mode (CKE = 1) Timing

Characteristics (see Figure 31-17).

Removed Table 31-45: Audio DAC Module Specifications. Original

contents were updated and combined with Table 31-44 of the same

name.

Section 32.0 “High Temperature Electrical

Characteristics”

Added new chapter with high temperature specifications.

“Product Identification System” Added the “H” definition for high temperature.

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Revision E (January 2011)

This revision includes typographical and formatting

changes throughout the data sheet text. In addition, the

Preliminary marking in the footer was removed.

All instances of VDDCORE have been removed.

All other major changes are referenced by their

respective section in the following table.

TABLE A-4: MAJOR SECTION UPDATES

Section Name Update Description

“High-Performance, 16-bit Digital Signal

Controllers”

The high temperature end range was updated to +150ºC (see

“Operating Range:”).

Section 2.0 “Guidelines for Getting Started

with 16-bit Digital Signal Controllers”

Updated the title of Section 2.3 “CPU Logic Filter Capacitor

Connection (VCAP)”.

The frequency limitation for device PLL start-up conditions was

updated in Section 2.7 “Oscillator Value Conditions on Device

Start-up”.

The second paragraph in Section 2.9 “Unused I/Os” was updated.

Section 4.0 “Memory Organization” The All Resets values for the following SFRs in the Timer Register

Map were changed (see Table 4-5):

•TMR1

•TMR2

•TMR3

•TMR4

•TMR5

Section 9.0 “Oscillator Configuration” Added Note 3 to the OSCCON: Oscillator Control Register (see

Added Note 2 to the CLKDIV: Clock Divisor Register (see

Added Note 1 to the PLLFBD: PLL Feedback Divisor Register (see

Added Note 2 to the OSCTUN: FRC Oscillator Tuning Register (see

Added Note 1 to the ACLKCON: Auxiliary Control Register (see

Section 22.0 “10-bit/12-bit Analog-to-Digital

Converter (ADC1)”

Updated the VREFL references in the ADC1 module block diagrams

(see Figure 22-1 and Figure 22-2).

Section 28.0 “Special Features” Added a new paragraph and removed the third paragraph in

Section 28.1 “Configuration Bits”.

Added the column “RTSP Effects” to the dsPIC33F Configuration

Bits Descriptions (see Table 28-2).

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Section 31.0 “Electrical Characteristics” Updated the maximum value for Extended Temperature Devices in

the Thermal Operating Conditions (see Table 31-2).

Removed Note 4 from the DC Temperature and Voltage

Specifications (see Table 31-4).

Updated all typical and maximum Operating Current (IDD) values

(see Table 31-5).

Updated all typical and maximum Idle Current (IIDLE) values (see

Table 31-6).

Updated the maximum Power-Down Current (IPD) values for

parameters DC60d, DC60a, and DC60b (see Table 31-7).

Updated all typical Doze Current (Idoze) values (see Table 31-8).

Updated the maximum value for parameter DI19 and added

parameters DI28, DI29, DI60a, DI60b, and DI60c to the I/O Pin Input

Specifications (see Table 31-9).

Added Note 2 to the PLL Clock Timing Specifications

(see Table 31-17)

Removed Note 2 from the AC Characteristics: Internal RC Accuracy

(see Table 31-18).

Updated the Internal RC Accuracy minimum and maximum values

for parameter F21b (see Table 31-19).

Updated the characteristic description for parameter DI35 in the I/O

Timing Requirements (see Table 31-20).

Updated all SPI specifications (see Table 31-32 through Table 31-39

and Figure 31-14 through Figure 31-21)

Updated the ADC Module Specification minimum values for

parameters AD05 and AD07, and updated the maximum value for

parameter AD06 (see Table 31-43).

Updated the ADC Module Specifications (12-bit Mode) minimum and

maximum values for parameter AD21a (see Table 31-44).

Updated all ADC Module Specifications (10-bit Mode) values, with

the exception of Dynamic Performance (see Table 31-45).

Updated the minimum value for parameter PM6 and the maximum

value for parameter PM7 in the Parallel Master Port Read Timing

Requirements (see Table 31-54).

Added DMA Read/Write Timing Requirements (see Table 31-56).

TABLE A-4: MAJOR SECTION UPDATES (CONTINUED)

Section Name Update Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Section 32.0 “High Temperature Electrical

Characteristics”

Updated all ambient temperature end range values to +150ºC

throughout the chapter.

Updated the storage temperature end range to +160ºC.

Updated the maximum junction temperature from +145ºC to +155ºC.

Updated the maximum values for High Temperature Devices in the

Thermal Operating Conditions (see Table 32-2).

Updated the ADC Module Specifications (12-bit Mode) (see

Table 32-14).

Updated the ADC Module Specifications (10-bit Mode) (see

Table 32-15).

“Product Identification System” Updated the end range temperature value for H (High) devices.

TABLE A-4: MAJOR SECTION UPDATES (CONTINUED)

Section Name Update Description

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Revision F (August 2011)

This revision includes typographical and formatting

changes throughout the data sheet text.

All other major changes are referenced by their

respective section in the following table.

Revision G (April 2012)

This revision includes typographical and formatting

changes throughout the data sheet text.

In addition, where applicable, new sections were added

to each peripheral chapter that provide information and

links to related resources, as well as helpful tips. For

examples, see Section 9.2 “Oscillator Resources”

and Section 22.4 “ADC Helpful Tips”.

All other major changes are referenced by their

respective section in the following table.

TABLE A-5: MAJOR SECTION UPDATES

Section Name Update Description

Section 28.0 “Special Features” Added Note 3 to the Connections for the On-chip Voltage Regulator

diagram (see Figure 28-1).

Section 31.0 “Electrical Characteristics” Removed Voltage on VCAP with respect to Vss from the Absolute

Maximum Ratings.

Removed Note 3 and parameter DC10 (VCORE) from the DC

Temperature and Voltage Specifications (see Table 31-4).

Updated the Characteristics definition and Conditions for parameter

BO10 in the Electrical Characteristics: BOR (see Table 31-11).

Added Note 1 to the Internal Voltage Regulator Specifications (see

Table 31-13).

TABLE A-6: MAJOR SECTION UPDATES

Section Name Update Description

Section 2.0 “Guidelines for Getting Started

with 16-bit Digital Signal Controllers”

Added two new tables:

• Crystal Recommendations (see Table 2-1)

• Resonator Recommendations (see Table 2-2)

Section 31.0 “Electrical Characteristics” Updated parameters DO10 and DO20 and removed parameters

DO16 and DO26 in the DC Characteristics: I/O Pin Output

Specifications (see Table 31-10)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

INDEX

AC Characteristics .................................................... 369, 418

ADC Module.............................................................. 421

ADC Module (10-bit Mode) ....................................... 422

ADC Module (12-bit Mode) ....................................... 421

Internal RC Accuracy ................................................ 371

Load Conditions ................................................ 369, 418

ADC Module

ADC11 Register Map ............................................ 50, 51

Alternate Interrupt Vector Table (AIVT) .............................. 89

Analog-to-Digital Converter............................................... 281

DMA .......................................................................... 281

Initialization ............................................................... 281

Key Features............................................................. 281

Arithmetic Logic Unit (ALU)................................................. 30

Assembler

MPASM Assembler................................................... 354

Barrel Shifter ....................................................................... 34

Bit-Reversed Addressing .................................................... 66

Example ...................................................................... 67

Implementation ........................................................... 66

Sequence Table (16-Entry)......................................... 67

Block Diagrams

16-bit Timer1 Module ................................................ 195

ADC Module...................................................... 282, 283

Connections for On-Chip Voltage Regulator............. 339

Device Clock ..................................................... 143, 145

DSP Engine ................................................................ 31

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04,

and dsPIC33FJ128MCX02/X04.......................... 12

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04,

and dsPIC33FJ128MCX02/X04 CPU Core ........ 23

ECAN Module ........................................................... 255

Input Capture ............................................................ 205

Output Compare ....................................................... 209

PLL............................................................................ 145

PWM Module .................................................... 214, 215

Quadrature Encoder Interface .................................. 227

Reset System.............................................................. 79

Shared Port Structure ............................................... 163

SPI ............................................................................ 233

Timer2 (16-bit) .......................................................... 199

Timer2/3 (32-bit) ....................................................... 201

UART ........................................................................ 247

Watchdog Timer (WDT) ............................................ 340

C Compilers

MPLAB C18 .............................................................. 354

Clock Switching................................................................. 153

Enabling .................................................................... 153

Sequence.................................................................. 153

Code Examples

Erasing a Program Memory Page............................... 77

Initiating a Programming Sequence............................ 78

Loading Write Buffers ................................................. 78

Port Write/Read ........................................................ 164

PWRSAV Instruction Syntax..................................... 155

Code Protection ........................................................ 335, 341

Comparator Module .......................................................... 297

Configuration Bits.............................................................. 335

Configuration Register Map .............................................. 335

Configuring Analog Port Pins............................................ 164

CPU

Control Register.......................................................... 26

CPU Clocking System ...................................................... 144

PLL Configuration..................................................... 145

Selection................................................................... 144

Sources .................................................................... 144

Customer Change Notification Service............................. 455

Customer Notification Service .......................................... 455

Customer Support............................................................. 455

Data Accumulators and Adder/Subtracter .......................... 32

Data Space Write Saturation ...................................... 34

Overflow and Saturation ............................................. 32

Round Logic ............................................................... 33

Write Back .................................................................. 33

Data Address Space........................................................... 37

Alignment.................................................................... 37

Memory Map for dsPIC33FJ128MC202/204 and

dsPIC33FJ64MC202/204 Devices

with 8 KB RAM ................................................... 39

Memory Map for dsPIC33FJ128MC802/804 and

dsPIC33FJ64MC802/804 Devices

with 16 KB RAM ................................................. 40

Memory Map for dsPIC33FJ32MC302/304 Devices with

4 KB RAM........................................................... 38

Near Data Space ........................................................ 37

Software Stack ........................................................... 63

Width .......................................................................... 37

DC and AC Characteristics

Graphs and Tables ................................................... 425

DC Characteristics............................................................ 358

Doze Current (IDOZE)................................................ 415

High Temperature..................................................... 414

I/O Pin Input Specifications ...................................... 364

I/O Pin Output Specifications............................ 367, 416

Idle Current (IDOZE) .................................................. 363

Idle Current (IIDLE) .................................................... 361

Operating Current (IDD) ............................................ 360

Operating MIPS vs. Voltage ..................................... 414

Power-Down Current (IPD)........................................ 362

Power-down Current (IPD) ........................................ 415

Program Memory.............................................. 368, 417

Temperature and Voltage......................................... 414

Temperature and Voltage Specifications.................. 359

Thermal Operating Conditions.................................. 414

Development Support....................................................... 353

DMA Module

DMA Register Map ..................................................... 52

DMAC Registers............................................................... 133

DMAxCNT ................................................................ 133

DMAxCON................................................................ 133

DMAxPAD ................................................................ 133

DMAxREQ ................................................................ 133

DMAxSTA................................................................. 133

DMAxSTB................................................................. 133

Doze Mode ....................................................................... 156

DSP Engine ........................................................................ 30

Multiplier ..................................................................... 32

ECAN Module

CiBUFPNT1 register................................................. 267

CiBUFPNT2 register................................................. 268

CiBUFPNT3 register................................................. 268

CiBUFPNT4 register................................................. 269

CiCFG1 register........................................................ 265

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

CiCFG2 register ........................................................ 266

CiCTRL1 register ...................................................... 258

CiCTRL2 register ...................................................... 259

CiEC register............................................................. 265

CiFCTRL register ...................................................... 261

CiFEN1 register ........................................................ 267

CiFIFO register ......................................................... 262

CiFMSKSEL1 register............................................... 271

CiFMSKSEL2 register............................................... 272

CiINTE register ......................................................... 264

CiINTF register.......................................................... 263

CiRXFnEID register .................................................. 271

CiRXFnSID register .................................................. 270

CiRXFUL1 register .................................................... 274

CiRXFUL2 register .................................................... 274

CiRXMnEID register.................................................. 273

CiRXMnSID register.................................................. 273

CiRXOVF1 register ................................................... 275

CiRXOVF2 register ................................................... 275

CiTRmnCON register................................................ 276

CiVEC register .......................................................... 260

ECAN1 Register Map (C1CTRL1.WIN = 0 or 1) ......... 54

ECAN1 Register Map (C1CTRL1.WIN = 0) ................ 54

ECAN1 Register Map (C1CTRL1.WIN = 1) ................ 55

Frame Types............................................................. 254

Modes of Operation .................................................. 256

Overview ................................................................... 253

ECAN Registers

Acceptance Filter Enable Register (CiFEN1)............ 267

Acceptance Filter Extended Identifier Register n (CiRXF-

nEID)................................................................. 271

Acceptance Filter Mask Extended Identifier Register n

(CiRXMnEID) .................................................... 273

Acceptance Filter Mask Standard Identifier Register n

(CiRXMnSID) .................................................... 273

Acceptance Filter Standard Identifier Register n (CiRXF-

nSID)................................................................. 270

Baud Rate Configuration Register 1 (CiCFG1) ......... 265

Baud Rate Configuration Register 2 (CiCFG2) ......... 266

Control Register 1 (CiCTRL1) ................................... 258

Control Register 2 (CiCTRL2) ................................... 259

FIFO Control Register (CiFCTRL) ............................ 261

FIFO Status Register (CiFIFO) ................................. 262

Filter 0-3 Buffer Pointer Register (CiBUFPNT1) ....... 267

Filter 12-15 Buffer Pointer Register (CiBUFPNT4) ... 269

Filter 15-8 Mask Selection Register (CiFMSKSEL2). 272

Filter 4-7 Buffer Pointer Register (CiBUFPNT2) ....... 268

Filter 7-0 Mask Selection Register (CiFMSKSEL1)... 271

Filter 8-11 Buffer Pointer Register (CiBUFPNT3) ..... 268

Interrupt Code Register (CiVEC) .............................. 260

Interrupt Enable Register (CiINTE) ........................... 264

Interrupt Flag Register (CiINTF) ............................... 263

Receive Buffer Full Register 1 (CiRXFUL1).............. 274

Receive Buffer Full Register 2 (CiRXFUL2).............. 274

Receive Buffer Overflow Register 2 (CiRXOVF2)..... 275

Receive Overflow Register (CiRXOVF1) .................. 275

ECAN Transmit/Receive Error Count Register (CiEC) ..... 265

ECAN TX/RX Buffer m Control Register (CiTRmnCON) .. 276

Electrical Characteristics................................................... 357

AC ..................................................................... 369, 418

Enhanced CAN Module..................................................... 253

Equations

Device Operating Frequency .................................... 144

Errata .................................................................................... 9

Flash Program Memory....................................................... 73

Control Registers ........................................................ 74

Operations .................................................................. 74

Programming Algorithm .............................................. 77

RTSP Operation ......................................................... 74

Table Instructions ....................................................... 73

Flexible Configuration ....................................................... 335

High Temperature Electrical Characteristics .................... 413

I/O Ports............................................................................ 163

Parallel I/O (PIO) ...................................................... 163

Write/Read Timing .................................................... 164

I2C

Operating Modes ...................................................... 239

Registers .................................................................. 241

In-Circuit Debugger........................................................... 341

In-Circuit Emulation .......................................................... 335

In-Circuit Serial Programming (ICSP)....................... 335, 341

Input Capture .................................................................... 205

Registers .................................................................. 207

Input Change Notification ................................................. 164

Instruction Addressing Modes ............................................ 63

File Register Instructions ............................................ 63

Fundamental Modes Supported ................................. 64

MAC Instructions ........................................................ 64

MCU Instructions ........................................................ 63

Move and Accumulator Instructions............................ 64

Other Instructions ....................................................... 64

Instruction Set

Overview................................................................... 348

Summary .................................................................. 345

Instruction-Based Power-Saving Modes........................... 155

Idle............................................................................ 156

Sleep ........................................................................ 155

Internal RC Oscillator

Use with WDT........................................................... 340

Internet Address ............................................................... 455

Interrupt Control and Status Registers ............................... 93

IECx............................................................................ 93

IFSx ............................................................................ 93

INTCON1.................................................................... 93

INTCON2.................................................................... 93

IPCx............................................................................ 93

Interrupt Setup Procedures............................................... 130

Initialization............................................................... 130

Interrupt Disable ....................................................... 130

Interrupt Service Routine.......................................... 130

Trap Service Routine ................................................ 130

Interrupt Vector Table (IVT) ................................................ 89

Interrupts Coincident with Power Save Instructions ......... 156

JTAG Boundary Scan Interface ........................................ 335

JTAG Interface.................................................................. 341

Memory Organization ......................................................... 35

Microchip Internet Web Site.............................................. 455

Modes of Operation

Disable...................................................................... 256

Initialization............................................................... 256

Listen All Messages.................................................. 256

Listen Only................................................................ 256

Loopback .................................................................. 256

Normal Operation ..................................................... 256

Modulo Addressing ............................................................. 65

Applicability................................................................. 66

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Operation Example ..................................................... 65

Start and End Address................................................ 65

W Address Register Selection .................................... 65

Motor Control PWM .......................................................... 213

Motor Control PWM Module

2-Output Register Map................................................ 48

6-Output Register Map................................................ 47

MPLAB ASM30 Assembler, Linker, Librarian ................... 354

MPLAB Integrated Development Environment Software .. 353

MPLAB PM3 Device Programmer .................................... 356

MPLAB REAL ICE In-Circuit Emulator System................. 355

MPLINK Object Linker/MPLIB Object Librarian ................ 354

NVM Module

Open-Drain Configuration ................................................. 164

Output Compare ............................................................... 209

Packaging ......................................................................... 429

Details ....................................................................... 430

Marking ..................................................................... 429

Peripheral Module Disable (PMD) .................................... 156

Pinout I/O Descriptions (table) ............................................ 13

PMD Module

PORTA

PORTB

Power-on Reset (POR) ....................................................... 85

Power-Saving Features .................................................... 155

Clock Frequency and Switching................................ 155

Program Address Space..................................................... 35

Construction................................................................ 68

Data Access from Program Memory Using Program

Space Visibility.................................................... 71

Data Access from Program Memory Using Table Instruc-

tions .................................................................... 70

Data Access from, Address Generation...................... 69

Memory Map ............................................................... 35

Table Read Instructions

TBLRDH ............................................................. 70

TBLRDL .............................................................. 70

Visibility Operation ...................................................... 71

Program Memory

Interrupt Vector ........................................................... 36

Organization................................................................ 36

Reset Vector ............................................................... 36

Quadrature Encoder Interface (QEI) ................................. 227

Quadrature Encoder Interface (QEI) Module

Reader Response ............................................................. 456

CRC ............................................................................ 60

Dual Comparator......................................................... 60

Parallel Master/Slave Port .......................................... 59

Real-Time Clock and Calendar................................... 60

Registers

AD1CHS0 (ADC1 Input Channel 0 Select ................ 293

AD1CHS123 (ADC1 Input Channel 1, 2, 3 Select) ... 291

AD1CON1 (ADC1 Control 1) .................................... 286

AD1CON2 (ADC1 Control 2) .................................... 288

AD1CON3 (ADC1 Control 3) .................................... 289

AD1CON4 (ADC1 Control 4) .................................... 290

AD1CSSL (ADC1 Input Scan Select Low) ............... 295

AD1PCFGL (ADC1 Port Configuration Low) ............ 295

CiBUFPNT1 (ECAN Filter 0-3 Buffer Pointer) .......... 267

CiBUFPNT2 (ECAN Filter 4-7 Buffer Pointer) .......... 268

CiBUFPNT3 (ECAN Filter 8-11 Buffer Pointer) ........ 268

CiBUFPNT4 (ECAN Filter 12-15 Buffer Pointer) ...... 269

CiCFG1 (ECAN Baud Rate Configuration 1)............ 265

CiCFG2 (ECAN Baud Rate Configuration 2)............ 266

CiCTRL1 (ECAN Control 1)...................................... 258

CiCTRL2 (ECAN Control 2)...................................... 259

CiEC (ECAN Transmit/Receive Error Count) ........... 265

CiFCTRL (ECAN FIFO Control) ............................... 261

CiFEN1 (ECAN Acceptance Filter Enable)............... 267

CiFIFO (ECAN FIFO Status) .................................... 262

CiFMSKSEL1 (ECAN Filter 7-0 Mask Selection) .... 271,

272

CiINTE (ECAN Interrupt Enable) .............................. 264

CiINTF (ECAN Interrupt Flag) .................................. 263

CiRXFnEID (ECAN Acceptance Filter n Extended Identi-

fier) ................................................................... 271

CiRXFnSID (ECAN Acceptance Filter n Standard Identi-

fier) ................................................................... 270

CiRXFUL1 (ECAN Receive Buffer Full 1)................. 274

CiRXFUL2 (ECAN Receive Buffer Full 2)................. 274

CiRXMnEID (ECAN Acceptance Filter Mask n Extended

Identifier) .......................................................... 273

CiRXMnSID (ECAN Acceptance Filter Mask n Standard

Identifier) .......................................................... 273

CiRXOVF1 (ECAN Receive Buffer Overflow 1)........ 275

CiRXOVF2 (ECAN Receive Buffer Overflow 2)........ 275

CiTRBnSID (ECAN Buffer n Standard Identifier)..... 277,

278, 280

CiTRmnCON (ECAN TX/RX Buffer m Control) ........ 276

CiVEC (ECAN Interrupt Code) ................................. 260

CLKDIV (Clock Divisor) ............................................ 149

CORCON (Core Control)...................................... 28, 94

DFLTCON (QEI Control) .......................................... 231

DMACS0 (DMA Controller Status 0) ........................ 138

DMACS1 (DMA Controller Status 1) ........................ 140

DMAxCNT (DMA Channel x Transfer Count) ........... 137

DMAxCON (DMA Channel x Control)....................... 134

DMAxPAD (DMA Channel x Peripheral Address) .... 137

DMAxREQ (DMA Channel x IRQ Select) ................. 135

DMAxSTA (DMA Channel x RAM Start Address A) . 136

DMAxSTB (DMA Channel x RAM Start Address B) . 136

DSADR (Most Recent DMA RAM Address) ............. 141

I2CxCON (I2Cx Control)........................................... 242

I2CxMSK (I2Cx Slave Mode Address Mask)............ 246

I2CxSTAT (I2Cx Status) ........................................... 244

IFS0 (Interrupt Flag Status 0) ............................. 98, 105

IFS1 (Interrupt Flag Status 1) ........................... 100, 107

IFS2 (Interrupt Flag Status 2) ........................... 102, 109

IFS3 (Interrupt Flag Status 3) ........................... 103, 110

IFS4 (Interrupt Flag Status 4) ........................... 104, 111

INTCON1 (Interrupt Control 1) ................................... 95

INTCON2 (Interrupt Control 2) ................................... 97

INTTREG Interrupt Control and Status Register ...... 129

IPC0 (Interrupt Priority Control 0) ............................. 112

IPC1 (Interrupt Priority Control 1) ............................. 113

IPC11 (Interrupt Priority Control 11) ......................... 122

IPC14 (Interrupt Priority Control 14) ......................... 123

IPC15 (Interrupt Priority Control 15) ......................... 124

IPC16 (Interrupt Priority Control 16) ......................... 125

IPC17 (Interrupt Priority Control 17) ......................... 126

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

IPC18 (Interrupt Priority Control 18) ................. 127, 128

IPC2 (Interrupt Priority Control 2) ............................. 114

IPC3 (Interrupt Priority Control 3) ............................. 115

IPC4 (Interrupt Priority Control 4) ............................. 116

IPC5 (Interrupt Priority Control 5) ............................. 117

IPC6 (Interrupt Priority Control 6) ............................. 118

IPC7 (Interrupt Priority Control 7) ............................. 119

IPC8 (Interrupt Priority Control 8) ............................. 120

IPC9 (Interrupt Priority Control 9) ............................. 121

NVMCON (Flash Memory Control) ............................. 75

NVMKEY (Nonvolatile Memory Key) .......................... 76

OCxCON (Output Compare x Control) ..................... 212

OSCCON (Oscillator Control) ................................... 147

OSCTUN (FRC Oscillator Tuning) ............................ 151

P1DC3 (PWM Duty Cycle 3) ..................................... 226

PLLFBD (PLL Feedback Divisor) .............................. 150

PMD1 (Peripheral Module Disable Control Register 1)...

158

PMD2 (Peripheral Module Disable Control Register 2)...

160

PMD3 (Peripheral Module Disable Control Register 3)...

161

PWMxCON1 (PWM Control 1).................................. 220

PWMxCON2 (PWM Control 2).................................. 221

PxDC1 (PWM Duty Cycle 1) ..................................... 226

PxDC2 (PWM Duty Cycle 2) ..................................... 226

PxDTCON1 (Dead-Time Control 1) .......................... 222

PxDTCON2 (Dead-Time Control 2) .......................... 223

PxFLTACON (Fault A Control).................................. 224

PxOVDCON (Override Control) ................................ 225

PxSECMP (Special Event Compare)........................ 219

PxTCON (PWM Time Base Control). 217, 300, 301, 302

PxTMR (PWM Timer Count Value)........................... 218

PxTPER (PWM Time Base Period) .......................... 218

QEICON (QEI Control).............................................. 229

RCON (Reset Control) ................................................ 81

SPIxCON1 (SPIx Control 1) ...................................... 236

SPIxCON2 (SPIx Control 2) ...................................... 238

SPIxSTAT (SPIx Status and Control) ....................... 235

SR (CPU Status)................................................... 26, 94

T1CON (Timer1 Control)........................................... 197

TCxCON (Input Capture x Control) ........................... 207

TxCON (Type B Time Base Control) ........................ 202

TyCON (Type C Time Base Control) ........................ 203

UxMODE (UARTx Mode).......................................... 249

UxSTA (UARTx Status and Control)......................... 251

Reset

Illegal Opcode ....................................................... 79, 87

Trap Conflict.......................................................... 86, 87

Uninitialized W Register........................................ 79, 87

Reset Sequence.................................................................. 89

Resets ................................................................................. 79

Serial Peripheral Interface (SPI) ....................................... 233

Software Reset Instruction (SWR) ...................................... 86

Software Simulator (MPLAB SIM)..................................... 355

Software Stack Pointer, Frame Pointer

CALLL Stack Frame.................................................... 63

Special Features of the CPU............................................. 335

SPI Module

SPI1 Register Map...................................................... 50

Symbols Used in Opcode Descriptions............................. 346

System Control

Temperature and Voltage Specifications

AC..................................................................... 369, 418

Timer1............................................................................... 195

Timer2/3............................................................................ 199

Timing Characteristics

CLKO and I/O ........................................................... 372

Timing Diagrams

10-bit ADC Conversion (CHPS<1:0> = 01, SIMSAM = 0,

ASAM = 0, SSRC<2:0> = 000)......................... 405

10-bit ADC Conversion (CHPS<1:0> = 01, SIMSAM = 0,

ASAM = 1, SSRC<2:0> = 111,

SAMC<4:0> = 00001)....................................... 405

10-bit ADC Conversion (CHPS<1:0> = 01, SIMSAM = 0,

ASAM = 1, SSRC<2:0> = 111, SAMC<4:0> =

00001) .............................................................. 405

12-bit ADC Conversion (ASAM = 0, SSRC<2:0> = 000)

403

Brown-out Situations................................................... 86

ECAN I/O.................................................................. 399

External Clock........................................................... 370

I2Cx Bus Data (Master Mode) .................................. 395

I2Cx Bus Data (Slave Mode) .................................... 397

I2Cx Bus Start/Stop Bits (Master Mode)................... 395

I2Cx Bus Start/Stop Bits (Slave Mode)..................... 397

Input Capture (CAPx) ............................................... 378

Motor Control PWM .................................................. 380

Motor Control PWM Fault ......................................... 380

OC/PWM................................................................... 379

Output Compare (OCx)............................................. 378

QEA/QEB Input ........................................................ 381

QEI Module Index Pulse........................................... 382

Reset, Watchdog Timer, Oscillator Start-up Timer

and Power-up Timer ......................................... 373

Timer1, 2, 3 External Clock ...................................... 375

TimerQ (QEI Module) External Clock ....................... 377

Timing Requirements

ADC Conversion (10-bit mode)................................. 423

ADC Conversion (12-bit Mode)................................. 423

CLKO and I/O ........................................................... 372

External Clock........................................................... 370

Input Capture ............................................................ 378

SPIx Master Mode (CKE = 0) ................................... 419

SPIx Module Master Mode (CKE = 1) ...................... 419

SPIx Module Slave Mode (CKE = 0) ........................ 420

SPIx Module Slave Mode (CKE = 1) ........................ 420

Timing Specifications

10-bit ADC Conversion Requirements...................... 406

12-bit ADC Conversion Requirements...................... 404

CAN I/O Requirements ............................................. 399

I2Cx Bus Data Requirements (Master Mode)........... 396

I2Cx Bus Data Requirements (Slave Mode)............. 398

Motor Control PWM Requirements........................... 380

Output Compare Requirements................................ 378

PLL Clock ......................................................... 371, 418

QEI External Clock Requirements ............................ 377

QEI Index Pulse Requirements ................................ 382

Quadrature Decoder Requirements.......................... 381

Reset, Watchdog Timer, Oscillator Start-up Timer,

Power-up Timer and Brown-out Reset

Requirements ................................................... 374

Simple OC/PWM Mode Requirements ..................... 379

Timer1 External Clock Requirements ....................... 375

Timer2 External Clock Requirements ....................... 376

Timer3 External Clock Requirements ....................... 376

UART Module

UART1 Register Map.................................................. 49

Universal Asynchronous Receiver Transmitter (UART) ... 247

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

Using the RCON Status Bits ............................................... 87

Voltage Regulator (On-Chip) ............................................ 339

Watchdog Time-out Reset (WDTR) .................................... 86

Watchdog Timer (WDT) ............................................ 335, 340

Programming Considerations ................................... 340

WWW Address.................................................................. 455

WWW, On-Line Support ....................................................... 9

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

THE MICROCHIP WEB SITE

Microchip provides online support via our WWW site at

www.microchip.com. This web site is used as a means

to make files and information easily available to

customers. Accessible by using your favorite Internet

browser, the web site contains the following

information:

•Product Support – Data sheets and errata,

application notes and sample programs, design

resources, user’s guides and hardware support

documents, latest software releases and archived

software

•General Technical Support – Frequently Asked

Questions (FAQs), technical support requests,

online discussion groups, Microchip consultant

program member listing

•Business of Microchip – Product selector and

ordering guides, latest Microchip press releases,

listing of seminars and events, listings of

Microchip sales offices, distributors and factory

representatives

CUSTOMER CHANGE NOTIFICATION

SERVICE

Microchip’s customer notification service helps keep

customers current on Microchip products. Subscribers

will receive e-mail notification whenever there are

changes, updates, revisions or errata related to a

specified product family or development tool of interest.

To register, access the Microchip web site at

www.microchip.com. Under “Support”, click on

“Customer Change Notification” and follow the

registration instructions.

CUSTOMER SUPPORT

Users of Microchip products can receive assistance

through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

Customers should contact their distributor,

representative or field application engineer (FAE) for

support. Local sales offices are also available to help

customers. A listing of sales offices and locations is

included in the back of this document.

Technical support is available through the web site

at: http://microchip.com/support

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

READER RESPONSE

It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip

product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our

documentation can better serve you, please FAX your comments to the Technical Publications Manager at

(480) 792-4150.

Please list the following information, and use this outline to provide us with your comments about this document.

TO: Technical Publications Manager

RE: Reader Response

Total Pages Sent ________

From: Name

Company

Address

City / State / ZIP / Country

Telephone: (_______) _________ - _________

Application (optional):

Would you like a reply? Y N

Device: Literature Number:

Questions:

FAX: (______) _________ - _________

DS70291GdsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 and

dsPIC33FJ128MCX02/X04

1. What are the best features of this document?

2. How does this document meet your hardware and software development needs?

3. Do you find the organization of this document easy to follow? If not, why?

4. What additions to the document do you think would enhance the structure and subject?

5. What deletions from the document could be made without affecting the overall usefulness?

6. Is there any incorrect or misleading information (what and where)?

7. How would you improve this document?

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

PRODUCT IDENTIFICATION SYSTEM

To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.

Architecture: 33 = 16-bit Digital Signal Controller

Flash Memory Family: FJ = Flash program memory, 3.3V

Product Group: MC2 = Motor Control family

MC3 = Motor Control family

MC8 = Motor Control family

Pin Count: 02 = 28-pin

04 = 44-pin

Temperature Range: I = -40°C to+85°C (Industrial)

E=-40°C to+125°C (Extended)

H=-40°C to+150°C (High)

Package: SP = Skinny Plastic Dual In-Line - 300 mil body (SPDIP)

SO = Plastic Small Outline - Wide - 300 mil body (SOIC)

ML = Plastic Quad, No Lead Package - 8x8 mm body (QFN)

MM = Plastic Quad, No Lead Package - 6x6x0.9 body (QFN-S)

PT = Plastic Thin Quad Flatpack - 10x10x1 mm body (TQFP)

Examples:

a) dsPIC33FJ32MC302-E/SP:

Motor Control dsPIC33, 32 KB program

memory, 28-pin, Extended temperature,

SPDIP package.

Microchip Trademark

Architecture

Flash Memory Family

Program Memory Size (KB)

Product Group

Pin Count

Temperature Range

Package

Pattern

dsPIC 33 FJ 32 MC3 02 T E / SP - XXX

Tape and Reel Flag (if applicable)

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04

NOTES:

Information contained in this publication regarding device

applications and the like is provided only for your convenience

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

MICROCHIP MAKES NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND WHETHER EXPRESS OR

IMPLIED, WRITTEN OR ORAL, STATUTORY OR

OTHERWISE, RELATED TO THE INFORMATION,

INCLUDING BUT NOT LIMITED TO ITS CONDITION,

QUALITY, PERFORMANCE, MERCHANTABILITY OR

FITNESS FOR PURPOSE. Microchip disclaims all liability

arising from this information and its use. Use of Microchip

devices in life support and/or safety applications is entirely at

the buyer’s risk, and the buyer agrees to defend, indemnify and

hold harmless Microchip from any and all damages, claims,

suits, or expenses resulting from such use. No licenses are

conveyed, implicitly or otherwise, under any Microchip

intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC,

KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

PIC32 logo, rfPIC and UNI/O are registered trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,

MXDEV, MXLAB, SEEVAL and The Embedded Control

Solutions Company are registered trademarks of Microchip

Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, chipKIT,

chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,

dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,

FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,

Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,

MPLINK, mTouch, Omniscient Code Generation, PICC,

PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,

rfLAB, Select Mode, Total Endurance, TSHARC,

UniWinDriver, WiperLock and ZENA are trademarks of

Microchip Technology Incorporated in the U.S.A. and other

countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

ISBN: 978-1-62076-236-3

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2009 certification for its worldwide

headquarters, design and wafer fabrication facilities in Chandler and

Tempe, Arizona; Gresham, Oregon and design centers in California

and India. The Company’s quality system processes and procedures

are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

QUALITYMANAGEMENT



YSTEM

CERTIFIEDBYDNV

== ISO/TS16949==

AMERICAS

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11/29/11