410-202P-KIT - Digilent - Product.Network

™

Revision: July 25, 2011

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Doc: 502-202 page 1 of 23

Overview

The chipKIT Max32 is a microcontroller board

based on the Microchip PIC32MX795F512L, a

member of the 32-bit PIC32 microcontroller

family. The chipKIT boards are compatible with

the popular Arduino™ microcontroller board

shields.

The Max32 is designed to be easy to use and

suitable for use by anyone from beginners to

advanced users for experimenting with

electronics and embedded control systems.

The Max32 is intended to be used with the

Multi-Platform IDE, (modified Arduino IDE),

MPIDE, and contains everything needed to

start developing embedded applications.

The Max32 provides 83 I/O pins that support a

number of peripheral functions, such as UART,

SPI and I

C™ ports and pulse width modulated

outputs. Sixteen of the I/O pins can be used as

analog inputs or as digital inputs and outputs.

The PIC32 microcontroller on the Max32 also

provides a 10/100 Ethernet MAC, USB 2.0 Full

Speed OTG controller, and two CAN

controllers. Use of these advanced peripherals

requires an add-on board (for example the

Digilent Network Shield) to provide the

additional hardware required.

The Max32 can be powered via USB, an

external AC-DC power adapter, or batteries.

Specifications:

Microcontroller: PIC32MX795F512L

Flash Memory: 512K

RAM Memory: 128K

Operating Voltage: 3.3V

Operating Frequency: 80Mhz

Typical operating current: 90mA

Input Voltage (recommended): 7V to 15V

Input Voltage (maximum): 20V

I/O Pins: 83 total

Analog Inputs: 16

Analog input voltage range: 0V to 3.3V

DC Current per pin: +/-18mA

Advanced peripherals:

10/100 Ethernet MAC

USB 2.0 Full Speed OTG controller

2 CAN controllers.

chipKIT Max32 Reference Manual

www.digilentinc.com page 2 of 23

chipKIT Max32 Hardware Overview

The Max32 board provides the following hardware features:

1) USB Connector for USB Serial Converter

This connects to a USB port on the PC to provide the communications port used by the

MPIDE to talk to the Max32 board. This can also be used to power the Max32 board when

connected to the PC.

2) J11 – Microchip Debug Tool Connector

This connector is used to connect Microchip programmer/debugger tools, such as the

PICkit™3. This allows the Max32 board to be used as a traditional microcontroller

development board using the Microchip MPLAB

IDE.

3) J2 – External Power Connector

This is used to power the Max32 board from an external power supply. This is a 5.5mm x

2.1mm barrel connector. It is wired with the center terminal as the positive supply voltage.

The power supply voltage must be in the range 7V to 15V.

4) Power Supply – 3.3V regulator

Voltage regulator for the 3.3V power supply. This power supply can provide up to 500mA

of current.

chipKIT Max32 Reference Manual

www.digilentinc.com page 3 of 23

5) JP1 – Power Select Jumper

This jumper is used to route power from the external power connector through the on-

board 5V voltage regulator or to bypass the 5V regulator. The REG position routes power

through the 5V regulator. The BYP position bypasses the on-board 5V regulator. With this

jumper in the BYP position the maximum input voltage that can be applied at the external

power connector is 6V.

6) Power Supply – 5V regulator

On-Board 5V voltage regulator. This regulates the input voltage applied at the external

power connector to 5V. This is used to power the 3.3V regulator and to provide 5V power

to shields. This regulator can provide up to 800mA of current.

7) J2 – Shield Power Connector

This connector provides power to I/O expansion shields connected to the board.

8) PIC32 Microcontroller

This is the PIC32MX795F512L microcontroller that is the main processor for the board.

9) J5, J7 – Analog Signal Connectors

These connectors provides access to analog/digital I/O pins on the microcontroller.

10) J6, J8, J9, J15 – Digital Signal and Power Connectors

These are shown as four connectors in the Max32 schematic. There is a single connector

loaded across all four when the board is assembled. These provide 5V power, ground, and

access to digital I/O pins on the microcontroller to shields connected to the board.

11) User LED

An LED connected to digital signal pin 13.

12) JP3/JP4 – SPI Master/Slave Select Jumpers

These jumpers are used to switch the SPI signals for use of the Max32 board as an SPI

master device or as an SPI slave device. Both jumpers should be switched together. Place

the shorting blocks in the MASTER position for master operation and in the SLAVE

position for slave operation. Normally, these jumpers are in the MASTER position.

13) J13 – SPI Signal Connector

This connector provides alternative access to the SPI signals. This is used by some

shields for access to the SPI bus.

14) J3, J4, J14 – Digital Signal Connectors

These connectors provides access to digital I/O pins on the microcontroller.

15) Communications Status LEDs

These LEDs indicate activity on the USB serial interface.

16) Reset Button

This button can be used to reset the microcontroller, restarting operation from the boot

loader.

chipKIT Max32 Reference Manual

www.digilentinc.com page 4 of 23

chipKIT Max32 Jumper Settings

The chipKIT™ Development Platforms use a Microchip PIC32 Microcontroller. These are 32-bit

products that bring unprecedented features to the Arduino™ community. In order to maintain

compatibility with existing hardware/software while maintaining user accessibility to these

advanced features, additional jumpers and row headers are provided. This document describes the

functionality of the jumpers listed in figure 1.

Figure 1: chipKIT™ Max32 Jumpers

Jumper

Function

JP1 POWER SELECT: Used to connect/bypass on-board 5V regulator when using a

power supply connected to J2

J4 supply is regulated (i.e. 5V will be

present on 5V pin)

J4 supply bypasses regulator (i.e.

Supply voltage will be present on 5V

pin)

Note: A 3.3V on-board regulator will always be enabled regardless of JP1

settings to protect the PIC32 MCU

Not sure what this does? Play it safe and keep JP1 on the two right-most pins.

(i.e. J2 supply is regulated)

JP3/JP4 SPI SELECT: Used to configure the chipKIT™ as either a Master or Slave when

using the SPI (Serial Peripheral Interface). The chipKIT™ board can be

connected to another device or even another chipKIT™ through the SPI

connector (J13).

chipKIT Max32 Reference Manual

www.digilentinc.com page 5 of 23

chipKIT™ configured as a SPI Master

chipKIT™ configured as a SPI Slave

For more information on SPI, please visit Wikipedia’s SPI page at:

http://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus#Mode_Numbers

chipKIT Max32 Reference Manual

www.digilentinc.com page 6 of 23

chipKIT Max32 Hardware Description

MPIDE and USB Serial Communications

The Max32 board is designed to be used with

the Multi-Platform IDE (MPIDE). The MPIDE

development platform was produced by

modifying the Arduino™ IDE and is fully

backward compatible with the Arduino IDE.

The MPIDE uses a serial communications port

to communicate with a boot loader running in

the Max32 board. The serial port on the Max32

board is implemented using an FTDI FT232R

USB serial converter. Before attempting to use

the MPIDE to communicate with the Max32,

the appropriate USB device driver must be

installed.

The Max32 board uses a standard mini-USB

connector for connection to a USB port on the

PC.

When the MPIDE needs to communicate with

the Max32 board, the board is reset and starts

running the boot loader. The MPIDE then

establishes communications with the boot

loader and downloads the program to the

board.

When the MPIDE opens the serial

communications connection on the PC, the

DTR pin on the FT232R chip is driven low.

This pin is coupled through a capacitor to the

MCLR pin on the PIC32 microcontroller.

Driving the MCLR line low resets the

microcontroller, restarting execution with the

boot loader.

This automatic reset action when the serial

communications connection is opened can be

disabled. To disable this operation, there is a

cut-able trace on the bottom of the board

between the pins of JP5. JP5 is normally not

loaded. If the trace between the pins on JP5

has been cut, the automatic reset operation

can be restored by loading JP5 and inserting a

shorting block across it.

Two red LEDs (LD1 and LD2) will blink when

data is being sent or received between the

Max32 and the PC over the serial connection.

The header connector J12 provides access to

the other serial handshaking signals provided

by the FT232R. Connector J12 is not loaded at

the factory and can be loaded by the user to

access these signals.

Power Supply

The Max32 is designed to be powered either

from USB or from an external power supply.

There is an automatic switchover circuit that

causes the external supply to be used if both

supplies are present.

The power supply section in the Max32 uses

two voltage regulators. The first regulates the

external voltage to 5V to power the VCC5V0

bus. The second regulates the VCC5V0 bus to

3.3V to provide power to the VCC3V3 bus that

powers the PIC32 microcontroller.

The 5V voltage regulator is normally an

NCP1117. The board is designed to be able to

also use an LM1117, but the NCP1117 is the

part normally used. The NCP1117 is rated for

an output current of 1A (the LM1117 is rated

for 800mA). The dropout voltage of the

NCP1117 is a maximum of 1.2V at the rated

output current (1.3V for the LM1117). There is

a reverse polarity protection diode in the

external power supply circuit. Considering the

diode drop plus the forward drop across the

regulator, the minimum input voltage to the

regulator should be 7V to produce a reliable 5V

output. The absolute maximum input voltage of

both the NCP1117 and the LM1117 is 20V.

The recommended maximum operating

voltage is 15V. For input voltages above 9V,

the regulator will get extremely hot when

drawing high currents. Both the NCP1117 and

the LM1117 have output short circuit protection

and internal thermal protection and will shut

down automatically to prevent damage.

chipKIT Max32 Reference Manual

www.digilentinc.com page 7 of 23

The 3.3V regulator is a Microchip MCP1725.

This regulator is rated for a maximum output

current of 500mA. The absolute maximum

input voltage for the MCP1725 is 6V. This

regulator has internal short circuit protection

and thermal protection. It will get noticeably

warm when the current consumed by the

VCC3V3 bus is close to the 500mA maximum.

The 5V power bus, VCC5V0 can be powered

from one of three sources: 1) The USB5V0 bus

when the board is operating under USB power;

2) The output of the on-board 5V regulator

when operating from an external 7V – 15V

supply; or 3) Directly from the external supply

when operating from a regulated 5V external

supply and jumper JP1 is in the BYP position.

Switchover from USB power to external power

is done automatically and the external supply

will be used if both are present.

Jumper JP1 is used to route the external

power supply voltage through the on-board 5V

regulator or directly to the VCC5V0 bus,

bypassing the on-board 5V regulator.

Normally, JP1 should be in the REG position.

This routes the external supply through the 5V

regulator. Operation from an externally

regulated 5V supply is provided by placing the

jumper in the BYP position.

The forward drop across the MCP1725 is

typically 210mV (350mV max) at 500mA

output. With JP1 in the BYP position, this will

allow correct operation of the 3.3V power

supply from an input voltage down to 3.5V.

This allows powering the board from batteries

and other lower voltage power sources. In this

case, the VCC5V0 power bus will not be

powered at 5V.

NOTE: It is extremely important to observe the

MCP1725 maximum input voltage rating of 6V

when JP1 is in the BYP position. Applying

more than 6V to the external power input with

the jumper in the BYP position can destroy the

3.3V regulator and possibly the PIC32

microcontroller as well.

The PIC32 microcontroller is rated to use a

maximum of 98mA of current when operating

at 80Mhz. This allows up to ~400mA from the

VCC3V3 bus and up to 700mA from the

VCC5V0 bus to power external devices.

The POWER connector, J10, is used to

provide power to shields connected to the

Max32 board. The following pins are provided

on this connector:

P32_MCLR (pin 1): This connects to the

MCLR pin on the PIC32 microcontroller and

can be used to reset the PIC32.

VCC3V3 (pin 2): This routes the 3.3V power

bus to shields. This pin can provide ~400mA.

VCC5V0 (pin 3): This routes the 5V power

bus to shields. This pin can provide up to

~700mA to shields, however the total

provided by pins 2 and 3 shouldn’t exceed

800mA.

GND (pin 4, 5): This provides a common

ground connection between the Max32 and

the shields.

VIN (pin 6): This connects to the voltage

provided at the external power supply

connector. This can be used to provide

unregulated input power to the shield. It can

also be used to power the Max32 board from

the shield instead of from the external power

connector.

5V Compatibility

The PIC32 microcontroller operates at 3.3V.

The original Arduino boards operate at 5V, and

many Arduino shields are designed to operate

at 5V.

There are two issues to consider when dealing

with 5V compatibility for 3.3V logic. The first is

protection of 3.3V inputs from damage caused

by 5V signals. The second is whether the 3.3V

output is high enough to be recognized as a

logic high value by a 5V input.

The digital I/O pins on the PIC32

microcontroller are 5V tolerant. The analog

capable I/O pins are not 5V tolerant. To

chipKIT Max32 Reference Manual

www.digilentinc.com page 8 of 23

provide 5V tolerance on those pins, the Max32

contains clamp diodes and current limiting

resistors to protect them from 5V input

voltages.

The fact that all I/O pins are 5V tolerant means

that it is safe to apply 5V logic levels to any

pins on the board without risk of damaging the

PIC32 microcontroller.

The minimum output high voltage of the PIC32

microcontroller is rated at 2.4V when sourcing

12mA of current. When driving a high

impedance input (typical of CMOS logic) the

output high voltage will be close to 3.3V. Some

5V devices will recognize this voltage as a

logic high input, and some won’t. Many 5V

logic devices will work reliably with 3.3V inputs.

Input/Output Connections

The Max32 board provides 83 of the I/O pins

from the PIC32 microcontroller to pins on the

input/output connectors, J3, J4, J5, J7, J8, J9,

and J14.

The PIC32 microcontroller can source or sink a

maximum of 18mA on all digital I/O pins.

However, to keep the output voltage within the

specified voltage range (V

0.4V, V

2.4V)

the pin current must be restricted to +7/-12mA.

The maximum current that can be sourced or

sunk across all I/O pins simultaneously is +/-

200mA. The maximum voltage that can be

applied to any I/O pin is 5.5V. For more

detailed specifications, refer to the

PIC32MX5XX/6XX/7XX Data Sheet available

from the Microchip web site.

Connectors J3, J8, J9, and J14 are 2x8 female

pin header connectors that provide digital I/O

signals. Connector J4 is a 1x8 female pin

header that provides digital I/O signals.

Connectors J5 and J7 are 1x8 female pin

headers that provide analog inputs as well as

digital I/O signals.

Connectors J6 and J15 are two-pin headers

that provide power and ground to shield

boards. J6 provides two pins connected to the

VCC5V0 bus and J15 provides two pins

connected to GND.

Note, that although J6, J8, J9 and J15 are

shown as separate connectors on the

schematic, a single connector part is loaded

across all of them when the board is

manufactured.

On connectors J3 and J14, the outer row

(closer to the board edge) of pins corresponds

to the I/O connector pins on an Arduino Mega

or Mega 2560 board. The inner row of pins

provides access to the extra I/O signals

provided by the PIC32 microcontroller.

The chipKIT/Arduino system uses logical pin

numbers to identify digital I/O pins on the

connectors. The logical pin numbers for the I/O

pins on the Max32 are 0 – 85. These pin

numbers are labeled in the silk screen on the

board.

The analog inputs on connectors J5 and J7 are

also assigned digital pin numbers. Pins A0 –

A7 on connector J5 are digital pins 54 – 61,

and pins A8 – A15 on connector J5 are digital

pins 62 – 69.

Pin numbers 70 – 85 are on the inner rows of

connectors J14 and J3.

Peripheral I/O Functions

The PIC32 microcontroller on the Max32 board

provides a number of peripheral functions. The

following peripherals are provided:

UART port 0: Asynchronous serial port. Pin 0

(RX0), Pin 1 (TX0). These pins are connected

to I/O connector J14 and are also connected to

the FT232R USB serial converter. It is possible

to use these pins to connect to an external

serial device when not using the USB serial

interface. This uses UART1A (U1ARX,

U1ATX) in the PIC32 microcontroller.

UART port 1: Asynchronous serial port. Pin 19

(RX1), Pin 18 (TX1). This uses UART1B

(U1BRX, U1BTX) in the PIC32 microcontroller.

chipKIT Max32 Reference Manual

www.digilentinc.com page 9 of 23

UART port 2: Asynchronous serial port. Pin 17

(RX2), Pin 16 (TX2). This uses UART3A

(U3ARX, U3ATX) in the PIC32 microcontroller.

UART port 3: Asynchronous serial port. Pin 15

(RX3, Pin 14 (TX3). This uses UART3B

(U3BRX, U3BTx) in the PIC32 microcontroller.

SPI: Synchronous serial port. Pin 53 (SS), Pin

51 (MOSI), Pin 50 (MISO), Pin 52 (SCK).

These signals also appear on connector J13.

Jumpers JP3 and JP4 are used to select

whether the Max32 operates as a Master

(transmit on MOSI, receive on MISO) or a

Slave (transmit on MISO, receive on MOSI)

device. The shorting blocks on JP3 and JP4

are normally placed in the Master position for

the Max32 to function as an SPI master. This

uses SPI2A (SS2A, SDI2A, SDO2A, SCK2A)

in the PIC32 microcontroller.

C: Synchronous serial interface. Pin 21

(SCL), Pin 20 (SDA). This uses I2C1 (SDA1,

SCL1) in the PIC32 microcontroller.

Note: The I

C bus uses open collector drivers

to allow multiple devices to drive the bus

signals. This means that pull-up resistors must

be provided to supply the logic high state for

the signals. These pull-up resistors are not on

the Max32 board and must be provided

externally. The resistance of the pull-up

resistor to use depends on the total number of

devices on the bus, the length of wire, and the

clock speed being used. It essentially depends

on distributed capacitance on the bus. The

higher the distributed capacitance and the

faster the clock speed, the smaller the

resistance should be. Values typically used are

in the range of 2K to 10K ohms.

PWM: Pulse width modulated output. Pins 3

(OC1), 5 (OC2), 6 (OC3), 9 (OC4), and 10

(OC5).

External Interrupts: Pin 3 (INT0), Pin 2

(INT1), Pin 7 (INT2), Pin 21 (INT3), Pin 20

(INT4)

User LED: Pin 13 (LD4). Pin 13 is shared

between a connector pin and the LED. Driving

the pin high turns the LED on, driving it low

turns it off.

A/D Converter Reference: Labeled A, the left-

most outer pin on connector J3. This is used to

provide an external voltage reference to

determine the input voltage range of the

analog pins. The maximum voltage that can be

applied to this pin is 3.3V. Note that this signal

is duplicated on connector J8 and corresponds

to digital I/O pin 44. If the A pin is being used

as an analog reference, then pin 44 is not

useable.

RTCC: Real Time Clock Calendar. The PIC32

microcontroller contains an RTCC circuit that

can be used to maintain time and date

information. The operation of the RTCC

requires a 32.768Khz frequency source. Pin 75

(SOSCI) is the clock input for the RTCC. A

32.768Khz oscillator should be connected to

this pin to allow use of the RTCC.

RESET: A reset button is at the upper left

corner of the board. Pressing this button will

reset the PIC32 microcontroller.

Advanced Peripheral Devices

The PIC32MX795F512L microcontroller on the

Max32 board has several peripheral devices

for advanced communications capabilities.

These peripheral devices require additional

hardware that isn’t provided on the Max32

board in order to function. This additional

hardware must be provided by a shield board

(such as the Digilent chipKIT Network Shield)

connected to the Max32.

These advanced peripheral functions make

use of various I/O pins for their operation. Most

of the I/O pins used by the advanced

peripheral devices are located on connectors

J8 and J9. When these pins are being used by

the advanced peripheral functions they are not

available for other uses.

chipKIT Max32 Reference Manual

www.digilentinc.com page 10 of 23

USB: The USB OTG controller allows using

the Max32 board to implement a USB device,

USB host or USB OTG host/device. The

following pins are used by the USB interface:

Pin 27 (D+), Pin 26 (D-), Pin 25 (USBID), Pin

24 (VBUS).

Pin 24 (VBUS) can be used by a self powered

USB device to monitor the presence of bus

voltage on the USB bus. This pin on the PIC32

microcontroller is an analog input pin used by

the USB controller, and is not useable as a

user I/O pin even when not using the USB

controller.

10/100 Ethernet MAC: The Ethernet MAC

requires an external PHY to complete the

implementation of an Ethernet network port.

The Ethernet MAC constructs the digital format

of packets being sent and performs the

checking and buffering of packets being

received. The PHY provides the physical

interface and translates the digital signals used

by the MAC into the analog voltages used on

the Ethernet cable.

There are two common interfaces used

between an Ethernet MAC and the PHY: MII

and RMII. The MAC in the PIC32 supports

either interface, but the Max32 board is

designed to use the RMII interface.

The RMII Ethernet PHY interface uses the

following pins: Pin 53 (EREFCLK), Pin 49

(EMDC), Pin 48 (EMDIO), Pin 47 (ETXEN), Pin

46 (ETXD0), 45 (ETXD1), Pin 43 (ECRSDV),

Pin 42 (ERXD0), Pin 41 (ERXD1), Pin 40

(ERXERR), and Pin 7 (NRST).

CAN1, CAN2: The CAN controllers allow the

Max32 to participate in one or two CAN

(Controller Area Network) networks. CAN is a

networking standard that was developed for

use in the automotive industry and is now also

use in building automation and other industrial

applications. The CAN controllers in the PIC32

microcontroller require external CAN

transceivers to connect to the network wiring.

The CAN1 interface uses the following pins:

Pin 15 (AC1RX), Pin 14 (AC1TX). Note that

these pins are also used by UART3.

The CAN2 interface uses the following pins:

Pin 23 (AC2RX), Pin 21 (AC2TX).

The PIC32 microcontroller is designed to allow

one of two sets of pins to be used by the CAN

controllers to connect to the transceivers. The

Max32 board is designed to use the alternate

sets of pins.

Microchip Development Tool

Compatibility

In addition to being used with the MPIDE, the

Max32 board can be used as a more traditional

microcontroller development board using

Microchip Development Tools.

Unloaded connector J11 on the left side of the

board is used to connect to a Microchip

development tool, such as the PICkit™3. The

holes for JP3 are staggered so that a standard,

100mil spaced, 6-pin header can be press fit to

the board without the need to solder it in place.

Any Microchip development tool that supports

the PIC32 microcontroller family, and can be

connected via the same 6-pin interface as the

PICkit3 can be used.

Typically, a right angle male connector will be

used in J11 so that a PICkit3 can be attached

coplanar with the Max32 board. If the

connector is loaded from the top, the PICkit3

will be upright (button and LEDs visible).

Alternatively, the connector can be loaded from

the bottom. In this case, the PICkit3 will be

upside down.

If J11 is loaded from the top, the PICkit3 will

interfere with the USB connector and the

external power connector. A short six-wire

cable can be used between the PICkit3 and

the Max32. If J11 is loaded from the bottom,

the PICkit3 won’t interfere with the USB and

external power connectors.

chipKIT Max32 Reference Manual

www.digilentinc.com page 11 of 23

Digilent has a kit available (PICkit3

Programming Cable Kit) that includes all

necessary connectors and cable for connecting

a PICkit3 to the Max32.

The Microchip MPLAB

IDE or the MPLAB

IDE can be used to program and debug code

running on the Max32 board. These programs

can be downloaded from the Microchip web

site.

Using the Microchip development tools to

program the Max32 board will cause the boot

loader to be erased. To use the board with the

MPIDE again, it is necessary to program the

boot loader back onto the board. The boot

loader source code and compiled image can

be found in the MPIDE software download.

™

Revision: July 25, 2011

1300 NE Henley Court, Suite 3

Pullman, WA 99163

(509) 334 6306 Voice | (509) 334 6300 Fax

Doc: 502-202 page 12 of 23

Pinout Table by Logical Pin Number

chipKIT

Pin #

Connector

Pin #

PIC32

Pin PIC32 Signal Notes

0 J14-01 52 SDA1A/SDI1A/U1ARX/RF2

1 J14-03 53 SCL1A/SDO1A/U1ATX/RF8

2 J14-05 18 AERXD0/INT1/RE8

3 J14-07 72 SDO1/OC1/INT0/RD0

4 J14-09 74 SOSCO/T1CK/CN0/RC14

5 J14-11 76 OC2/RD1

6 J14-13 77 OC3/RD2

7 J14-15 19 AERXD1/INT2/RE9

8 J3-01 79 ETXD2/IC5/PMD12/RD12

9 J3-03 78 OC4/RD3

10 J3-05 81 OC5/PMWR/CN13/RD4

11 J3-07 9 T5CK/SDI1/RC4

12 J3-09 58 SCL2/RA2

13 J3-11 59 SDA2/RA3

14 J4-08 39 AC1TX/SCK3A/U3BTX/U3ARTS/RF13

15 J4-07 40 AC1RX/SS3A/U3BRX/U3ACTS/RF12

16 J4-06 50 SCL3A/SDO3A/U3ATX/PMA8/CN18/RF5

17 J4-05 49 SDA3A/SDI3A/U3ARX/PMA9/CN17/RF4

18 J4-04 48 AETXD1/SCK1A/U1BTX/U1ARTS/CN21/RD15

19 J4-03 47 AETXD0/SS1A/U1BRX/U1ACTS/CN20/RD14

20 J4-02 67 AETXEN/SDA1/INT4/RA15

21 J4-01 66 AETXCLK/SCL1/INT3/RA14

22 J9-16 7 T3CK/AC2TX/RC2

chipKIT Max32 Reference Manual

www.digilentinc.com page 13 of 23

23 J9-15 8 T4CK/AC2RX/RC3

24 J9-14 54 VBUS

25 J9-13 51 USBID/RF3

26 J9-12 56 D-/RG3

27 J9-11 57 D+/RG2

28 J9-10 1 AERXERR/RG15

29 J9-09 11 ECRX/SDA2/SDI2A/U2ARX/PMA4/CN9/RG7

30 J9-08 5 PMD7/RE7

31 J9-07 4 PMD6/RE6

32 J9-06 3 PMD5/RE5

33 J9-05 100 PMD4/RE4

34 J9-04 99 PMD3/RE3

35 J9-03 98 PMD2/RE2

36 J9-02 94 PMD1/RE1

37 J9-01 93 PMD0/RE0

38 J8-16 70 SCK1/IC3/PMCS2/PMA15/RD10

39 J8-15 82 PMRD/CN14/RD5

40 J8-14 35 AN11/EREXERR/AETXERR/PMA12/RB11 Also J7-04(65)

41 J8-13 42 AN13/ERXD1/AECOL/PMA10/RB13 Also J7-06(66)

42 J8-12 41 AN12/ERXD0/AECRS/PMA11/RB12 Also J7-05(67)

43 J8-11 12 ERXDV/AERXDV/ECRSDV/AECRSDV/SCL2A/SDO2A/U2ATX/PMA3/CN10/RG8 Also JP3,JP4

44 J8-10 29 VREF+/CVREF+/AERXD3/PMA6/RA10 also J3-15

45 J8-09 87 C1RX/ETXD1/PMD11/RF0

46 J8-08 88 C1TX/ETXD0/RMD10/RF1

47 J8-07 83 ETXEN/PMD14/CN15/RD6

48 J8-06 68 RTCC/EMDIO/AEMDIO/IC1/RD8

49 J8-05 71 EMDC/AEMDC/IC4/PMCS1/PMA14/RD11

50 J8-04 11 ECRX/SDA2/SDI2A/U2ARX/PMA4/CN9/RG7 Also JP3,JP4

51 J8-03 12 ERXDV/AERXDV/ECRSDV/AECRSDV/SCL2A/SDO2A/U2ATX/PMA3/CN10/RG8 Also JP3,JP4

52 J8-02 10 ECOL/SCK2A/U2BTX/U2ARTS/PMA5/CN8/RG6 Also J13-03

chipKIT Max32 Reference Manual

www.digilentinc.com page 14 of 23

53 J8-01 14 ERXCLK/AERXCLK/EREFCLK/AEREFCLK/SS2A/U2BRX/U2ACTS/PMA2/CN11/RG9 Also J13-05

54 J5-01 25 PGED1/AN0/CN2/RB0 Also A0

55 J5-02 24 PGEC1/AN1/CN3/RB1 Also A1

56 J5-03 23 AN2/C2IN-/CN4/RB2 Also A2

57 J5-04 22 AN3/C2IN+/CN5/RB3 Also A3

58 J5-05 21 AN4/C1IN-/CN6/RB4 Also A4

59 J5-06 20 AN5/C1IN+/VBUSON/CN7/RB5 Also A5

60 J5-7 26 PGEC2/AN6/OCFA/RB6 Also A6

61 J5-8 27 PGED2/AN7/RB7 Also A7

62 J7-01 32 AN8/C1OUT/RB8 Also A8

63 J7-02 33 AN9/C2OUT/RB9 Also A9

64 J7-03 34 AN10/CVREFOUT/PMA13/RB10 Also A10

65 J7-04 35 AN11/EREXERR/AETXERR/PMA12/RB11 Also A11,J8-14(40)

66 J7-06 42 AN13/ERXD1/AECOL/PMA10/RB13 Also A12,J8-13(41)

67 J7-05 41 AN12/ERXD0/AECRS/PMA11/RB12 Also A13,J8-12(42)

68 J7-07 43 AN14/ERXD2/AETXD3/PMALH/PMA1/RB14 Also A14

69 J7-08 44 AN15/ERXD3/AETXD2/OCFB/PMALL/PMA0/CN12/RB15 Also A15

70 J14-02 17 TMS/RA0

71 J14-04 38 TCK/RA1

72 J14-06 60 TDI/RA4

73 J14-08 61 TDO/RA5

74 J14-10 69 SS1/IC2/RD9

75 J14-12 73 SOSCI/CN1/RC13

76 J14-14 80 ETXD3/PMD13/CN19/RD13

77 J14-16 84 ETXCLK/PMD15/CN16/RD7

78 J3-02 89 C2TX/ETXERR/PMD9/RG1

79 J3-04 90 C2RX/PMD8/RG0

80 J3-06 91 TRCLK/RA6

81 J3-08 92 TRD3/RA7

82 J3-10 95 TRD2/RG14

chipKIT Max32 Reference Manual

www.digilentinc.com page 15 of 23

83 J3-12 96 TRD1/RG12

84 J3-14 97 TRD0/RG13

85 J3-16 28 VREF-/CVREF0/AERXD2/PMA7/RA9

chipKIT Max32 Reference Manual

www.digilentinc.com page 16 of 23

Pinout Table by Connector Pin

Connector

Pin #

chipKIT

Pin #

PIC32

PIC32 Signal Notes

J03-01 8 79 ETXD2/IC5/PMD12/RD12

J03-02 78 89 C2TX/ETXERR/PMD9/RG1

J03-03 9 78 OC4/RD3

J03-04 79 90 C2RX/PMD8/RG0

J03-05 10 81 OC5/PMWR/CN13/RD4

J03-06 80 91 TRCLK/RA6

J03-07 11 9 T5CK/SDI1/RC4

J03-08 81 92 TRD3/RA7

J03-09 12 58 SCL2/RA2

J03-10 82 95 TRD2/RG14

J03-11 13 59 SDA2/RA3

J03-12 83 96 TRD1/RG12

J03-13 GND

J03-14 84 97 TRD0/RG13

J03-15 44 29 VREF+/CVREF+/AERXD3/PMA6/RA10 AREF

J03-16 85 28 VREF-/CVREF0/AERXD2/PMA7/RA9

J04-01 21 66 AETXCLK/SCL1/INT3/RA14

J04-02 20 67 AETXEN/SDA1/INT4/RA15

J04-03 19 47 AETXD0/SS1A/U1BRX/U1ACTS/CN20/RD14

J04-04 18 48 AETXD1/SCK1A/U1BTX/U1ARTS/CN21/RD15

J04-05 17 49 SDA3A/SDI3A/U3ARX/PMA9/CN17/RF4

J04-06 16 50 SCL3A/SDO3A/U3ATX/PMA8/CN18/RF5

J04-07 15 40 AC1RX/SS3A/U3BRX/U3ACTS/RF12

J04-08 14 39 AC1TX/SCK3A/U3BTX/U3ARTS/RF13

J05-01 54 25 PGED1/AN0/CN2/RB0 Also A0

J05-02 55 24 PGEC1/AN1/CN3/RB1 Also A1

J05-03 56 23 AN2/C2IN-/CN4/RB2 Also A2

chipKIT Max32 Reference Manual

www.digilentinc.com page 17 of 23

J05-04 57 22 AN3/C2IN+/CN5/RB3 Also A3

J05-05 58 21 AN4/C1IN-/CN6/RB4 Also A4

J05-06 59 20 AN5/C1IN+/VBUSON/CN7/RB5 Also A5

J05-07 60 26 PGEC2/AN6/OCFA/RB6 Also A6

J05-08 61 27 PGED2/AN7/RB7 Also A7

J07-01 62 32 AN8/C1OUT/RB8 Also A8

J07-02 63 33 AN9/C2OUT/RB9 Also A9

J07-03 64 34 AN10/CVREFOUT/PMA13/RB10 Also A10

J07-04 65 35 AN11/EREXERR/AETXERR/PMA12/RB11 Also A11, J08-14

J07-05 67 41 AN12/ERXD0/AECRS/PMA11/RB12 Also A12,42,J08-12

J07-06 66 42 AN13/ERXD1/AECOL/PMA10/RB13 Also A13, J08-13

J07-07 68 43 AN14/ERXD2/AETXD3/PMALH/PMA1/RB14 Also A14

J07-08 69 44 AN15/ERXD3/AETXD2/OCFB/PMALL/PMA0/CN12/RB15 Also A15

J08-01 53 14 ERXCLK/AERXCLK/EREFCLK/AEREFCLK/SS2A/U2BRX/U2ACTS/PMA2/CN11/RG9 Also J13-05

J08-02 52 10 ECOL/SCK2A/U2BTX/U2ARTS/PMA5/CN8/RG6 Also J13-03

J08-03 51 11 ECRX/SDA2/SDI2A/U2ARX/PMA4/CN9/RG7 Also JP3,JP4

J08-04 50 12 ERXDV/AERXDV/ECRSDV/AECRSDV/SCL2A/SDO2A/U2ATX/PMA3/CN10/RG8 Also JP3, JP4, J08-11

J08-05 49 71 EMDC/AEMDC/IC4/PMCS1/PMA14/RD11

J08-06 48 68 RTCC/EMDIO/AEMDIO/IC1/RD8

J08-07 47 83 ETXEN/PMD14/CN15/RD6

J08-08 46 88 C1TX/ETXD0/RMD10/RF1

J08-09 45 87 C1RX/ETXD1/PMD11/RF0

J08-10 44 29 VREF+/CVREF+/AERXD3/PMA6/RA10

J08-11 43 12 ERXDV/AERXDV/ECRSDV/AECRSDV/SCL2A/SDO2A/U2ATX/PMA3/CN10/RG8 Also JP3, JP4, J03-15

J08-15 39 82 PMRD/CN14/RD5

J08-16 38 70 SCK1/IC3/PMCS2/PMA15/RD10

J09-01 37 93 PMD0/RE0

J09-02 36 94 PMD1/RE1

J09-03 35 98 PMD2/RE2

J09-04 34 99 PMD3/RE3

chipKIT Max32 Reference Manual

www.digilentinc.com page 18 of 23

J09-05 33 100 PMD4/RE4

J09-06 32 3 PMD5/RE5

J09-07 31 4 PMD6/RE6

J09-08 30 5 PMD7/RE7

J09-09 29 11 ECRX/SDA2/SDI2A/U2ARX/PMA4/CN9/RG7 Also JP3, JP4

J09-10 28 1 AERXERR/RG15

J09-11 27 57 D+/RG2

J09-12 26 56 D-/RG3

J09-13 25 51 USBID/RF3

J09-14 24 54 VBUS (note useable as I/O)

J09-15 23 8 T4CK/AC2RX/RC3

J09-16 22 7 T3CK/AC2TX/RC2

J10-01 13 MCLR

J10-02 VCC3V3

J10-03 VCC5V0

J10-04 GND

J10-05 GND

J10-06 VIN (external supply voltage)

J14-01 0 52 SDA1A/SDI1A/U1ARX/RF2

J14-02 70 17 TMS/RA0

J14-03 1 53 SCL1A/SDO1A/U1ATX/RF8

J14-04 71 38 TCK/RA1

J14-05 2 18 AERXD0/INT1/RE8

J14-06 72 60 TDI/RA4

J14-07 3 72 SDO1/OC1/INT0/RD0

J14-08 73 61 TDO/RA5

J14-09 4 74 SOSCO/T1CK/CN0/RC14

J14-10 74 69 SS1/IC2/RD9

J14-11 5 76 OC2/RD1

J14-12 75 73 SOSCI/CN1/RC13

chipKIT Max32 Reference Manual

www.digilentinc.com page 19 of 23

J14-13 6 77 OC3/RD2

J14-14 76 80 ETXD3/PMD13/CN19/RD13

J14-15 7 19 AERXD1/INT2/RE9

J14-16 77 84 ETXCLK/PMD15/CN16/RD7

chipKIT Max32 Reference Manual

www.digilentinc.com page 20 of 23

Pinout Table by Microcontroller Pin

PIC32

Connector

Pin #

chipKIT

Pin #

PIC32 Signal

Notes

1 J9-10 28 AERXERR/RG15

2 VDD

3 J9-06 32 PMD5/RE5

4 J9-07 31 PMD6/RE6

5 J9-08 30 PMD7/RE7

6 n/c n/c T2CK/RC1

7 J9-16 22 T3CK/AC2TX/RC2

8 J9-15 23 T4CK/AC2RX/RC3

9 J3-07 11 T5CK/SDI1/RC4

10 J8-02 52 ECOL/SCK2A/U2BTX/U2ARTS/PMA5/CN8/RG6

Also J13-03

11 J9-09 29 ECRS/SDA2/SDI2A/U2ARX/PMA4/CN9/RG7

Also JP3, JP4

12 J8-11 43 ERXDV/AERXDV/ECRSDV/AECRSDV/SCL2A/SDO2A/U2ATX/PMA3/CN10/RG8

Also JP3, JP4

13 J10-01 MCLR

14 J8-01 53 ERXCLK/AERXCLK/EREFCLK/AEREFCLK/SS2A/U2BRX/U2ACTS/PMA2/CN11/RG9

Also J13-05

15 VSS

16 VDD

17 J14-02 70 TMS/RA0

18 J14-05 2 AERXD0/INT1/RE8

19 J14-15 7 AERXD1/INT2/RE9

20 J5-06 59 AN5/C1IN+/VBUSON/CN7/RB5

Also A5

21 J5-05 58 AN4/C1IN-/CN6/RB4

Also A4

22 J5-04 57 AN3/C2IN+/CN5/RB3

Also A3

23 J5-03 56 AN2/C2IN-/CN4/RB2

Also A2

24 J5-02 55 PGEC1/AN1/CN3/RB1

Also A1

25 J5-01 54 PGED1/AN0/CN2/RB0

Also A0

26 J5-7 60 PGEC2/AN6/OCFA/RB6

Also A6

chipKIT Max32 Reference Manual

www.digilentinc.com page 21 of 23

27 J5-8 61 PGED2/AN7/RB7

Also A7

28 J3-16 85 VREF-/CVREF-/AERXD2/PMA7/RA9

29 J8-10 44 VREF+/CVREF+/AERXD3/PMA6/RA10

Also J3-15

30 AVDD

31 AVSS

32 J7-01 62 AN8/C1OUT/RB8

Also A8

33 J7-02 63 AN9/C2OUT/RB9

Also A9

34 J7-03 64 AN10/CVREFOUT/PMA13/RB10

Also A10

35 J7-04 65 AN11/EREXERR/AETXERR/PMA12/RB11

Also A11, J8-14(40)

36 VSS

37 VDD

38 J14-04 71 TCK/RA1

39 J4-08 14 AC1TX/SCK3A/U3BTX/U3ARTS/RF13

40 J4-07 15 AC1RX/SS3A/U3BRX/U3ACTS/RF12

41 J7-05 67 AN12/ERXD0/AECRS/PMA11/RB12

Also A12, J8-12(42)

42 J7-06 66 AN13/ERXD1/AECOL/PMA10/RB13

Also A13, J8-13(41)

43 J7-07 68 AN14/ERXD2/AETXD3/PMALH/PMA1/RB14

Also A14

44 J7-08 69 AN15/ERXD3/AETXD2/OCFB/PMALL/PMA0/CN12/RB15

Also A15

45 VSS

46 VDD

47 J4-03 19 AETXD0/SS1A/U1BRX/U1ACTS/CN20/RD14

48 J4-04 18 AETXD1/SCK1A/U1BTX/U1ARTS/CN21/RD15

49 J4-05 17 SDA3A/SDI3A/U3ARX/PMA9/CN17/RF4

50 J4-06 16 SCL3A/SDO3A/U3ATX/PMA8/CN18/RF5

51 J9-13 25 USBID/RF3

52 J14-01 0 SDA1A/SDI1A/U1ARX/RF2

53 J14-03 1 SCL1A/SDO1A/U1ATX/RF8

54 J9-14 24 VBUS

55 VUSB

56 J9-12 26 D-/RG3

chipKIT Max32 Reference Manual

www.digilentinc.com page 22 of 23

57 J9-11 27 D+/RG2

58 J3-09 12 SCL2/RA2

59 J3-11 13 SDA2/RA3

60 J14-06 72 TDI/RA4

61 J14-08 73 TDO/RA5

62 VDD

63 OSC1/CLKI/RC12

X1, system clock

oscillator

64 OSC2/CLKO/RC15

X1, system clock

oscillator

65 VSS

66 J4-01 21 AETXCLK/SCL1/INT3/RA14

67 J4-02 20 AETXEN/SDA1/INT4/RA15

68 J8-06 48 RTCC/EMDIO/AEMDIO/IC1/RD8

69 J14-10 74 SS1/IC2/RD9

70 J8-16 38 SCK1/IC3/PMCS2/PMA15/RD10

71 J8-05 49 EMDC/AEMDC/IC4/PMCS1/PMA14/RD11

72 J14-07 3 SDO1/OC1/INT0/RD0

73 J14-12 75 SOSCI/CN1/RC13

RTCC clock input

74 J14-09 4 SOSCO/T1CK/CN0/RC14

75 VSS

76 J14-11 5 OC2/RD1

77 J14-13 6 OC3/RD2

78 J3-03 9 OC4/RD3

79 J3-01 8 ETXD2/IC5/PMD12/RD12

80 J14-14 76 ETXD3/PMD13/CN19/RD13

81 J3-05 10 OC5/PMWR/CN13/RD4

82 J8-15 39 PMRD/CN14/RD5

83 J8-07 47 ETXEN/PMD14/CN15/RD6

84 J14-16 77 ETXCLK/PMD15/CN16/RD7

85 VCAP/VDDCORE

chipKIT Max32 Reference Manual

www.digilentinc.com page 23 of 23

86 VDD

87 J8-09 45 C1RX/ETXD1/PMD11/RF0

88 J8-08 46 C1TX/ETXD0/RMD10/RF1

89 J3-02 78 C2TX/ETXERR/PMD9/RG1

90 J3-04 79 C2RX/PMD8/RG0

91 J3-06 80 TRCLK/RA6

92 J3-08 81 TRD3/RA7

93 J9-01 37 PMD0/RE0

94 J9-02 36 PMD1/RE1

95 J3-10 82 TRD2/RG14

96 J3-12 83 TRD1/RG12

97 J3-14 84 TRD0/RG13

98 J9-03 35 PMD2/RE2

99 J9-04 34 PMD3/RE3

100 J9-05 33 PMD4/RE4

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