ZiLOG Worldwide Headquarters • 532 Race Street • San Jose, CA 95126-3432
Telephone: 408.558.8500 • Fax: 408.558.8300 • www.ZiLOG.com
Product Specification
PS022606-0805
CrimzonTM ZLR32300
Z8 Low-Voltage ROM
MCU with Infrared Timers
Disclaimer PS022606-0805
This publication is subject to replacement by a later edition. To determine whether a later edition
exists, or to request copies of publications, contact:
ZiLOG Worldwide Headquarters
532 Race Street
San Jose, CA 95126-3432
Telephone: 408.558.8500
Fax: 408.558.8300
www.zilog.com
ZiLOG is a registered trademark of ZiLOG Inc. in the United States and in other countries. All other products and/or
service names mentioned herein may be trademarks of the companies with which they are associated.
Document Disclaimer
©2005 by ZiLOG, Inc. All rights reserved. Information in this publication concerning the devices, applications, or
technology described is intended to suggest possible uses and may be superseded. ZiLOG, INC. DOES NOT
ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES,
OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZiLOG ALSO DOES NOT ASSUME LIABILITY FOR
INTELLECTUAL PROPERTY INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES,
OR TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. Devices sold by ZiLOG, Inc. are covered by warranty
and limitation of liability provisions appearing in the ZiLOG, Inc. Terms and Conditions of Sale. ZiLOG, Inc. makes no
warranty of merchantability or fitness for any purpose. Except with the express written approval of ZiLOG, use of
information, devices, or technology as critical components of life support systems is not authorized. No licenses are
conveyed, implicitly or otherwise, by this document under any intellectual property rights.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Revision History
iii
Revision History
Each instance in Table 1 reflects a change to this document from its previous revi-
sion. To see more detail, click the appropriate link in the table.
Table 1. Revision History of this Document
Date
Revision
Level Description
Page
#
January
2005
03 Added characterization data, modified Table 8. 1, 2,
11, 12
Removed Preliminary designation All
April 2005 04 Clarified functioning of Port 1 in 20 and 28-packaging. Closes CR5842. 16, 25
May 2005 05 Updated “Ordering Information” on page 85.
August
2005
06 Removed the 40-pin package. Added caution to “Input/Output Ports” on
page 14. Updated “Ordering Information” on page 85.
CrimzonTM ZLR32300
Product Specification
PS022606-0805
iv
Table of Contents
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Development Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
XTAL1 Crystal 1 (Time-Based Input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
XTAL2 Crystal 2 (Time-Based Output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Input/Output Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
RESET (Input, Active Low) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Expanded Register File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Register File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Counter/Timer Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Expanded Register File Control Registers (0D) . . . . . . . . . . . . . . . . . . . . . . . . 62
Expanded Register File Control Registers (0F) . . . . . . . . . . . . . . . . . . . . . . . . . 68
Standard Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
CrimzonTM ZLR32300
Product Specification
PS022606-0805
v
List of Figures
Figure 1. Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 2. Counter/Timers Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3. 20-Pin PDIP/SOIC/SSOP Pin Configuration . . . . . . . . . . . . . . . . . . . 5
Figure 4. 28-Pin PDIP/SOIC/SSOP Pin Configuration . . . . . . . . . . . . . . . . . . . 6
Figure 5. 48-Pin SSOP Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6. Test Load Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. AC Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Port 0 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 9. Port 1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 10. Port 2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 11. Port 3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 12. Port 3 Counter/Timer Output Configuration . . . . . . . . . . . . . . . . . . . 20
Figure 13. Program Memory Map (32K ROM) . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 14. Expanded Register File Architecture . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 15. Register Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 16. Register Pointer—Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 17. Glitch Filter Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 18. Transmit Mode Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 19. 8-Bit Counter/Timer Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 20. T8_OUT in Single-Pass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 21. T8_OUT in Modulo-N Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 22. Demodulation Mode Count Capture Flowchart . . . . . . . . . . . . . . . . 40
Figure 23. Demodulation Mode Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 24. 16-Bit Counter/Timer Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 25. T16_OUT in Single-Pass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 26. T16_OUT in Modulo-N Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 27. Ping-Pong Mode Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 28. Output Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 29. Interrupt Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 30. Oscillator Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 31. Port Configuration Register (PCON) (Write Only) . . . . . . . . . . . . . . 51
Figure 32. STOP Mode Recovery Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 33. SCLK Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 34. STOP Mode Recovery Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
CrimzonTM ZLR32300
Product Specification
PS022606-0805
vi
Figure 35. STOP Mode Recovery Register 2 ((0F)DH:D2–D4,
D6 Write Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 36. WATCH-DOG TIMER Mode Register (Write Only) . . . . . . . . . . . . . 58
Figure 37. Resets and WDT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 38. TC8 Control Register ((0D)O0H: Read/Write
Except Where Noted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 39. T8 and T16 Common Control Functions
((0D)01H: Read/Write) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Figure 40. T16 Control Register ((0D) 2H: Read/Write
Except Where Noted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 41. T8/T16 Control Register (0D)03H: Read/Write
(Except Where Noted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 42. Voltage Detection Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 43. Port Configuration Register (PCON)(0F)00H: Write Only) . . . . . . . 69
Figure 44. STOP mode Recovery Register ((0F)0BH: D6–D0=Write Only,
D7=Read Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 45. STOP mode Recovery Register 2 ((0F)0DH:D2–D4,
D6 Write Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Figure 46. Watch-Dog Timer Register ((0F) 0FH: Write Only) . . . . . . . . . . . . . 72
Figure 47. Port 2 Mode Register (F6H: Write Only) . . . . . . . . . . . . . . . . . . . . . 72
Figure 48. Port 3 Mode Register (F7H: Write Only) . . . . . . . . . . . . . . . . . . . . . 73
Figure 49. Port 0 and 1 Mode Register (F8H: Write Only) . . . . . . . . . . . . . . . . 74
Figure 50. Interrupt Priority Register (F9H: Write Only) . . . . . . . . . . . . . . . . . . 75
Figure 51. Interrupt Request Register (FAH: Read/Write) . . . . . . . . . . . . . . . . 76
Figure 52. Interrupt Mask Register (FBH: Read/Write) . . . . . . . . . . . . . . . . . . . 76
Figure 53. Flag Register (FCH: Read/Write) . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 54. Register Pointer (FDH: Read/Write) . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 55. Stack Pointer High (FEH: Read/Write) . . . . . . . . . . . . . . . . . . . . . . 78
Figure 56. Stack Pointer Low (FFH: Read/Write) . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 57. 20-Pin PDIP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 58. 20-Pin SOIC Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 59. 20-Pin SSOP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 60. 28-Pin SOIC Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 61. 28-Pin PDIP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 62. 28-Pin SSOP Package Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 63. 48-Pin SSOP Package Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
CrimzonTM ZLR32300
Product Specification
PS022606-0805
vii
List of Tables
Table 1. Revision History of this Document . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Table 2. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 3. Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table 4. 20-Pin PDIP/SOIC/SSOP Pin Identification . . . . . . . . . . . . . . . . . . . . 5
Table 5. 28-Pin PDIP/SOIC/SSOP Pin Identification . . . . . . . . . . . . . . . . . . . . 6
Table 6. 48- Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 7. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 8. Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 9. LR32300 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 10. AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 11. Port 3 Pin Function Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 12. CTR1(0D)01H T8 and T16 Common Functions . . . . . . . . . . . . . . . 31
Table 13. Interrupt Types, Sources, and Vectors . . . . . . . . . . . . . . . . . . . . . . 48
Table 14. IRQ Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Table 15. SMR2(F)0Dh:STOP mode Recovery Register 2* . . . . . . . . . . . . . . 54
Table 16. STOP Mode Recovery Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Table 17. Watch-Dog Timer Time Select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 18. ROM Selectable Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Development Features
1
Development Features
Table 1 lists the features of ZiLOG®’s CrimzonTM ZLR32300 family members.
•
Low power consumption–5 mW (typical)
•
Three standby modes:
–
STOP—1.4µA (typical)
–
HALT—0.5mA (typical)
–
Low voltage
•
Special architecture to automate both generation and reception of complex pulses
or signals:
–
One programmable 8-bit counter/timer with two capture registers and two
load registers
–
One programmable 16-bit counter/timer with one 16-bit capture register
pair and one 16-bit load register pair
–
Programmable input glitch filter for pulse reception
•
Six priority interrupts
–
Three external
–
Two assigned to counter/timers
–
One low-voltage detection interrupt
•
Low voltage detection and high voltage detection flags
•
Programmable Watch-Dog Timer/Power-On Reset (WDT/POR) circuits
•
Two independent comparators with programmable interrupt polarity
•
Mask selectable pull-up transistors on ports 0, 1, 2, 3
•
ROM options
–
Port 0: 0–3 pull-up transistors
–
Port 0: 4–7 pull-up transistors
–
Port 1: 0–3 pull-up transistors
–
Port 1: 4–7 pull-up transistors
–
Port 2: 0–7 pull-up transistors
Table 1. Features
Device ROM (KB) RAM* (Bytes) I/O Lines Voltage Range
CrimzonTM ZLR32300 4, 8, 16, 24, 32 237 32, 24 or 16 2.0V–3.6V
Note: *General purpose
CrimzonTM ZLR32300
Product Specification
PS022606-0805 General Description
2
–
Port 3: 0–3 pull-up transistors
–
WDT enabled at POR
General Description
The CrimzonTM ZLR32300 is an ROM-based member of the MCU family of infra-
red microcontrollers. With 237B of general-purpose RAM and 4KB to 32KB of
ROM, ZiLOG®’s CMOS microcontrollers offer fast-executing, efficient use of
memory, sophisticated interrupts, input/output bit manipulation capabilities, auto-
mated pulse generation/reception, and internal key-scan pull-up transistors.
The CrimzonTM ZLR32300 architecture (Figure 1) is based on ZiLOG’s 8-bit
microcontroller core with an Expanded Register File allowing access to register-
mapped peripherals, input/output (I/O) circuits, and powerful counter/timer cir-
cuitry. The Z8 offers a flexible I/O scheme, an efficient register and address
space structure, and a number of ancillary features that are useful in many con-
sumer, automotive, computer peripheral, and battery-operated hand-held applica-
tions.
There are three basic address spaces available to support a wide range of config-
urations: Program Memory, Register File and Expanded Register File. The regis-
ter file is composed of 256 Bytes (B) of RAM. It includes 4 I/O port registers, 16
control and status registers, and 236 general-purpose registers. The Expanded
Register File consists of two additional register groups (F and D).
To unburden the program from coping with such real-time problems as generating
complex waveforms or receiving and demodulating complex waveform/pulses, the
CrimzonTM ZLR32300 offers a new intelligent counter/timer architecture with 8-bit
and 16-bit counter/timers (see Figure 2). Also included are a large number of
user-selectable modes and two on-board comparators to process analog signals
with separate reference voltages.
All signals with an overline, “ ”, are active Low. For example,
B/W, in which WORD is active Low, and B/W, in which BYTE is
active Low.
Power connections use the conventional descriptions listed in Table 2.
Table 2. Power Connections
Connection Circuit Device
Power VCC VDD
Ground GND VSS
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 General Description
3
Figure 1. Functional Block Diagram
Z8® Core
Port 2
Port 0
P21
P22
P23
P24
P25
P26
P27
P20
I/O Bit
Programmable
P04
P05
P06
P07
P00
P01
P02
P03
I/O Nibble
Programmable
Register File
256 x 8-Bit
Register Bus
Internal
Address Bus
Internal
Data Bus
Expanded
Register
File
Expanded
Register Bus
Z8
®
Core
Counter/Timer 8
8-Bit
Counter/Timer 16
16-Bit
V
DD
V
SS
XTAL
RESET
Pref1/P30
P31
P32
P33
P34
P35
P36
P37
Port 3
Machine
Timing &
Instruction
Control
Power
4
4
ROM
Up to 32K x 8
Port 1
P14
P15
P16
P17
P10
P11
P12
P13
I/O Byte
Programmable
8
Watch-Dog
Timer
Low Voltage
Detection
High Voltage
Detection
Power-On
Reset
Note: Refer to the specific package for available pins.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Description
4
Figure 2. Counter/Timers Diagram
Pin Description
The pin configuration for the 20-pin PDIP/SOIC/SSOP is illustrated in Figure 3
and described in Table 3. The pin configuration for the 28-pin DIP/SOIC/SSOP
are depicted in Figure 4 and described in Table 4. The pin configurations for the
48-pin SSOC versions are illustrated in Figure 5 and described in Table 5.
HI16 LO16
TC16H TC16L
HI8 LO8
TC8L
88
16
8
Input
SCLK
Timer 16
Timer 8/16
Timer 8
88
88
8
16-Bit
T16
Clock
Divider
Glitch
Filter
Edge
Detect
Circuit 8-Bit
T8
TC8H
1248
And/OR
Logic
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Description
5
Figure 3. 20-Pin PDIP/SOIC/SSOP Pin Configuration
Table 3. 20-Pin PDIP/SOIC/SSOP Pin Identification
Pin # Symbol Function Direction
1–3 P25–P27 Port 2, Bits 5,6,7 Input/Output
4 P07 Port 0, Bit 7 Input/Output
5V
DD Power Supply
6 XTAL2 Crystal Oscillator Clock Output
7 XTAL1 Crystal Oscillator Clock Input
8–10 P31–P33 Port 3, Bits 1,2,3 Input
11,12 P34, P36 Port 3, Bits 4,6 Output
13 P00/Pref1/P30 Port 0, Bit 0/Analog reference input
Port 3 Bit 0
Input/Output for P00
Input for Pref1/P30
14 P01 Port 0, Bit 1 Input/Output
15 VSS Ground
16–20 P20–P24 Port 2, Bits 0,1,2,3,4 Input/Output
P25
P26
P27
P07
VDD
XTAL2
XTAL1
P31
P32
P33
P24
P23
P22
P21
P20
VSS
P01
P00/Pref1/P30
P36
P34
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
20-Pin
PDIP
SOIC
SSOP
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Description
6
Figure 4. 28-Pin PDIP/SOIC/SSOP Pin Configuration
Table 4. 28-Pin PDIP/SOIC/SSOP Pin Identification
Pin Symbol Direction Description
1-3 P25-P27 Input/Output Port 2, Bits 5,6,7
4-7 P04-P07 Input/Output Port 0, Bits 4,5,6,7
8V
DD Power supply
9 XTAL2 Output Crystal, oscillator clock
10 XTAL1 Input Crystal, oscillator clock
11-13 P31-P33 Input Port 3, Bits 1,2,3
14 P34 Output Port 3, Bit 4
15 P35 Output Port 3, Bit 5
16 P37 Output Port 3, Bit 7
17 P36 Output Port 3, Bit 6
18 Pref1/P30
Port 3 Bit 0
Input Analog ref input; connect to VCC if not used
Input for Pref1/P30
19-21 P00-P02 Input/Output Port 0, Bits 0,1,2
22 VSS Ground
23 P03 Input/Output Port 0, Bit 3
24-28 P20-P24 Input/Output Port 2, Bits 0-4
P24
P23
P22
P21
P20
P03
VSS
P02
P01
P00
Pref1/P30
P36
P37
P35
P25
P26
P27
P04
P05
P06
P07
VDD
XTAL2
XTAL1
P31
P32
P33
P34
1
14
28
15
28-Pin
PDIP
SOIC
SSOP
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Description
7
Figure 5. 48-Pin SSOP Pin Configuration
Table 5. 48- Pin Configuration
48-Pin SSOP # Symbol
31 P00
32 P01
35 P02
41 P03
5P04
7P05
8P06
11 P07
33 P10
34 P11
39 P12
NC
P25
P26
P27
P04
N/C
P05
P06
P14
P15
P07
VDD
VDD
N/C
P16
P17
XTAL2
XTAL1
P31
P32
P33
P34
NC
VSS
NC
NC
P24
P23
P22
P21
P20
P03
P13
P12
VSS
VSS
N/C
P02
P11
P10
P01
P00
N/C
PREF1/P30
P36
P37
P35
RESET
48-Pin
SSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Description
8
40 P13
9P14
10 P15
15 P16
16 P17
42 P20
43 P21
44 P22
45 P23
46 P24
2P25
3P26
4P27
19 P31
20 P32
21 P33
22 P34
26 P35
28 P36
27 P37
23 NC
47 NC
1NC
25 RESET
18 XTAL1
17 XTAL2
12, 13 VDD
24, 37, 38 VSS
29 Pref1/P30
48 NC
6NC
14 NC
30 NC
36 NC
Table 5. 48- Pin Configuration
48-Pin SSOP # Symbol
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Absolute Maximum Ratings
9
Absolute Maximum Ratings
Stresses greater than those listed in Table 7 might cause permanent damage to
the device. This rating is a stress rating only. Functional operation of the device at
any condition above those indicated in the operational sections of these specifica-
tions is not implied. Exposure to absolute maximum rating conditions for an
extended period might affect device reliability.
Standard Test Conditions
The characteristics listed in this product specification apply for standard test con-
ditions as noted. All voltages are referenced to GND. Positive current flows into
the referenced pin (see Figure 6).
Figure 6. Test Load Diagram
Table 6. Absolute Maximum Ratings
Parameter Minimum Maximum Units Notes
Ambient temperature under bias 0 +70 C
Storage temperature –65 +150 C
Voltage on any pin with respect to VSS –0.3 +4.0 V 1
Voltage on VDD pin with respect to VSS –0.3 +3.6 V
Maximum current on input and/or inactive output pin –5 +5 µA
Maximum output current from active output pin –25 +25 mA
Maximum current into VDD or out of VSS 75 mA
Notes:
1. This voltage applies to all pins except the following: VDD and RESET.
From Output
Under Test
150pF
CrimzonTM ZLR32300
Product Specification
PS022606-0805 DC Characteristics
10
Capacitance
Table 7 lists the capacitances.
DC Characteristics
Table 7. Capacitance
Parameter Maximum
Input capacitance 12pF
Output capacitance 12pF
I/O capacitance 12pF
Note: TA = 25° C, VCC = GND = 0 V, f = 1.0 MHz, unmeasured pins returned to GND
Table 8. LR32300 DC Characteristics
TA= 0°C to +70°C
Units Conditions NotesSymbol Parameter VCC Min Typ(7) Max
VCC Supply Voltage 2.0 3.6 V See Note 5 5
VCH Clock Input High
Voltage
2.0-3.6 0.8VCC VCC+0.3 V Driven by External
Clock Generator
VCL Clock Input Low
Voltage
2.0-3.6 VSS–0.3 0.5 V Driven by External
Clock Generator
VIH Input High Voltage 2.0-3.6 0.7VCC VCC+0.3 V
VIL Input Low Voltage 2.0-3.6 VSS–0.3 0.2 VCC V
VOH1 Output High Voltage 2.0-3.6 VCC–0.4 V IOH = –0.5mA
VOH2 Output High Voltage
(P36, P37, P00, P01)
2.0-3.6 VCC–0.8 V IOH = –7mA
VOL1 Output Low Voltage 2.0-3.6 0.4 V IOL = 4.0mA
VOL2 Output Low Voltage
(P00, P01, P36, P37)
2.0-3.6 0.8 V IOL = 10mA
VOFFSET Comparator Input
Offset Voltage
2.0-3.6 25 mV
VREF Comparator
Reference
Voltage
2.0-3.6 0 VDD
-1.75
V
IIL Input Leakage 2.0-3.6 –1 1 µAV
IN = 0V, VCC
Pull-ups disabled
RPU Pull-Up Resistance 225 675 K ΩVIN = 0V; Pullups selected by mask
option
75 275 K Ω
IOL Output Leakage 2.0-3.6 –1 1 µAV
IN = 0V, VCC
ICC Supply Current 2.0
3.6
1.2
2.2
3
5
mA
mA
at 8.0 MHz
at 8.0 MHz
1, 2
1, 2
CrimzonTM ZLR32300
Product Specification
PS022606-0805 DC Characteristics
11
ICC1 Standby Current
(HALT Mode)
2.0
3.6
0.5
0.8
1.6
2.0
mA
mA
VIN = 0V, VCC at 8.0MHz
Same as above
1, 2, 6
1, 2, 6
ICC2 Standby Current
(STOP mode)
2.0
3.6
2.0
3.6
1.5
2.1
4.7
7.4
8
10
20
30
µA
µA
µA
µA
VIN = 0 V, VCC WDT is not Running
Same as above
VIN = 0 V, VCC WDT is Running
Same as above
3
3
3
3
ILV Standby Current
(Low Voltage)
1.0 6 µA Measured at 1.3V 4
VBO VCC Low Voltage
Protection
1.8 2.0 V 8MHz maximum
Ext. CLK Freq.
VLVD Vcc Low Voltage
Detection
2.4 V
VHVD Vcc High Voltage
Detection
2.7 V
Notes:
1. All outputs unloaded, inputs at rail.
2. CL1 = CL2 = 100 pF.
3. Oscillator stopped.
4. Oscillator stops when VCC falls below VBO limit.
5. It is strongly recommended to add a filter capacitor (minimum 0.1 µF), physically close to VDD and GND if operating voltage
fluctuations are anticipated, such as those resulting from driving an Infrared LED.
6. Comparator and Timers are on. Interrupt disabled.
7. Typical values shoen are at 25 degrees C.
Table 8. LR32300 DC Characteristics (Continued)
TA= 0°C to +70°C
Units Conditions NotesSymbol Parameter VCC Min Typ(7) Max
CrimzonTM ZLR32300
Product Specification
PS022606-0805 AC Characteristics
13
Table 9. AC Characteristics
TA=0°C to +70°C
8.0MHz
Watch-Dog
Timer
Mode
Register
(D1, D0)No Symbol Parameter VCC Minimum Maximum Units Notes
1 TpC Input Clock Period 2.0–3.6 121 DC ns 1
2 TrC,TfC Clock Input Rise and
Fall Times
2.0–3.6 25 ns 1
3 TwC Input Clock Width 2.0–3.6 37 ns 1
4 TwTinL Timer Input
Low Width
2.0
3.6
100
70
ns 1
5 TwTinH Timer Input High
Width
2.0–3.6 3TpC 1
6 TpTin Timer Input Period 2.0–3.6 8TpC 1
7 TrTin,TfTin Timer Input Rise and
Fall Timers
2.0–3.6 100 ns 1
8 TwIL Interrupt Request
Low Time
2.0
3.6
100
70
ns 1, 2
9 TwIH Interrupt Request
Input High Time
2.0–3.6 10TpC 1, 2
10 Twsm Stop-Mode
Recovery Width
Spec
2.0–3.6 12
10TpC
ns 3
4
11 Tost Oscillator
Start-Up Time
2.0–3.6 5TpC 4
12 Twdt Watch-Dog Timer
Delay Time
2.0–3.6
2.0–3.6
2.0–3.6
2.0–3.6
10
20
40
160
ms
ms
ms
ms
0, 0
0, 1
1, 0
1, 1
13 TPOR Power-On Reset 2.0–3.6 2.5 10 ms
Notes:
1. Timing Reference uses 0.9 VCC for a logic 1 and 0.1 VCC for a logic 0.
2. Interrupt request through Port 3 (P33–P31).
3. SMR – D5 = 1.
4. SMR – D5 = 0.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
14
Pin Functions
XTAL1 Crystal 1 (Time-Based Input)
This pin connects a parallel-resonant crystal or ceramic resonator, to the on-chip
oscillator input. Additionally, an optional external single-phase clock can be coded
to the on-chip oscillator input.
XTAL2 Crystal 2 (Time-Based Output)
This pin connects a parallel-resonant, crystal or ceramic resonant to the on-chip
oscillator output.
Input/Output Ports
The CMOS input buffer for each port 0, 1, or 2 pin is always
connected to the pin, even when the pin is configured as an
output. If the pin is configured as an open-drain output and
no external signal is applied, a High output state can cause
the CMOS input buffer to float. This might lead to excessive
leakage current of more than 100 µA. To prevent this
leakage, connect the pin to an external signal with a
defined logic level or ensure its output state is Low,
especially during STOP mode.
Internal pull-ups are disabled on any given pin or group of
port pins when programmed into output mode.
Port 0 (P07–P00)
Port 0 is an 8-bit, bidirectional, CMOS-compatible port. These eight I/O lines are
configured under software control as a nibble I/O port. The output drivers are
push-pull or open-drain controlled by bit D2 in the PCON register.
If one or both nibbles are needed for I/O operation, they must be configured by
writing to the Port 0 mode register. After a hardware reset, Port 0 is configured as
an input port.
An optional pull-up transistor is available as a mask option on all Port 0 bits with
nibble select.
The Port 0 direction is reset to be input following an SMR.
Caution:
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
15
Figure 8. Port 0 Configuration
Port 1 (P17–P10)
Port 1 (see Figure 9) Port 1 can be configured for standard port input or output
mode. After POR, Port 1 is configured as an input port. The output drivers are
either push-pull or open-drain and are controlled by bit D1 in the PCON register.
The Port 1 direction is reset to be input following an SMR.
In 20 and 28-pin packages, Port 1 is reserved. A write to this
register will have no effect and will always read FF.
ZLR32300
ROM
4
4
Port 0 (I/O)
Open-Drain
I/O
Out
In
VCC
Pad
Mask
Option
Resistive
Transistor
Pull-up
Notes:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
16
Figure 9. Port 1 Configuration
Port 2 (P27–P20)
Port 2 is an 8-bit, bidirectional, CMOS-compatible I/O port (see Figure 10). These
eight I/O lines can be independently configured under software control as inputs
or outputs. Port 2 is always available for I/O operation. A mask option is available
to connect eight pull-up transistors on this port. Bits programmed as outputs are
globally programmed as either push-pull or open-drain. The POR resets with the
eight bits of Port 2 configured as inputs.
Port 2 also has an 8-bit input OR and AND gate, which can be used to wake up
the part. P20 can be programmed to access the edge-detection circuitry in
demodulation mode.
ZLR32300
ROM
8Port 1 (I/O)
Open-Drain
OEN
Out
In
Mask
Option
VCC
Resistive
Transistor
Pull-up
Pad
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
17
Figure 10. Port 2 Configuration
Port 3 (P37–P30)
Port 3 is a 8-bit, CMOS-compatible fixed I/O port (see Figure 11). Port 3 consists
of four fixed input (P33–P30) and four fixed output (P37–P34), which can be con-
figured under software control for interrupt and as output from the counter/timers.
P30, P31, P32, and P33 are standard CMOS inputs; P34, P35, P36, and P37 are
push-pull outputs.
ZLR32300
ROM
Port 2 (I/O)
Pad
In
Out
I/O
Open-Drain Resistive
Transistor
Pull-up
VCC
Mask
Option
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
18
Figure 11. Port 3 Configuration
Two on-board comparators process analog signals on P31 and P32, with refer-
ence to the voltage on Pref1 and P33. The analog function is enabled by program-
ming the Port 3 Mode Register (bit 1). P31 and P32 are programmable as rising,
falling, or both edge triggered interrupts (IRQ register bits 6 and 7). Pref1 and P33
are the comparator reference voltage inputs. Access to the Counter Timer edge-
detection circuit is through P31 or P20 (see “T8 and T16 Common Functions—
-
ZLR32300
ROM
Port 3 (I/O)
P32 (AN2)
P31 (AN1)
Pref1
From STOP Mode Recovery Source of SMR
P33 (REF2)
IRQ2, P31 Data Latch
Pref1/P30
P31
P32
P33
P34
P35
P36
P37
D1 1 = Analog
0 = Digital
R247 = P3M
+
-
+IRQ0, P32 Data Latch
IRQ1, P33 Data Latch
Comp1
Comp2
Dig.
An.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
19
CTR1(0D)01h” on page 31). Other edge detect and IRQ modes are described in
Table 10.
Comparators are powered down by entering STOP mode. For
P31–P33 to be used in a STOP Mode Recovery (SMR) source,
these inputs must be placed into digital mode.
2
Port 3 also provides output for each of the counter/timers and the AND/OR Logic
(see Figure 12). Control is performed by programming bits D5–D4 of CTR1, bit 0
of CTR0, and bit 0 of CTR2.
Table 10. Port 3 Pin Function Summary
Pin I/O Counter/Timers Comparator Interrupt
Pref1/P30 IN RF1
P31 IN IN AN1 IRQ2
P32 IN AN2 IRQ0
P33 IN RF2 IRQ1
P34 OUT T8 AO1
P35 OUT T16
P36 OUT T8/16
P37 OUT AO2
P20 I/O IN
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Pin Functions
20
Figure 12. Port 3 Counter/Timer Output Configuration
Pad
P34
Comp1
VDD
MUX
PCON, D0
MUX
CTR0, D0
P31
P30 (Pref1)
P34 data
T8_Out
+
Pad
P35
VDD
MUX
CTR2, D0
Out 35
T16_Out
Pad
P36
VDD
MUX
CTR1, D6
Out 36
T8/T16_Out
Pad
P37
VDD
MUX
PCON, D0
P37 data
-
P31
P3M D1
Comp2
P32
P33
+
-
P32
P3M D1
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
21
Comparator Inputs
In analog mode, P31 and P32 have a comparator front end. The comparator refer-
ence is supplied to P33 and Pref1. In this mode, the P33 internal data latch and its
corresponding IRQ1 are diverted to the SMR sources (excluding P31, P32, and
P33) as indicated in Figure 11 on page 18. In digital mode, P33 is used as D3 of
the Port 3 input register, which then generates IRQ1.
Comparators are powered down by entering STOP mode. For
P31–P33 to be used in a STOP mode Recovery source, these
inputs must be placed into digital mode.
Comparator Outputs
These channels can be programmed to be output on P34 and P37 through the
PCON register.
RESET (Input, Active Low)
Reset initializes the MCU and is accomplished either through Power-On, Watch-
Dog Timer, STOP mode Recovery, Low-Voltage detection, or external reset. Dur-
ing Power-On Reset and Watch-Dog Timer Reset, the internally generated reset
drives the reset pin Low for the POR time. Any devices driving the external reset
line must be open-drain to avoid damage from a possible conflict during reset con-
ditions. Pull-up is provided internally.
When the ZLR32300 asserts (Low) the RESET pin, the internal pull-up is dis-
abled. The ZLR32300 does not assert the RESET pin when under VBO.
The external Reset does not initiate an exit from STOP mode.
Functional Description
This device incorporates special functions to enhance the Z8®’ functionality in
consumer and battery-operated applications.
Program Memory
This device addresses 32KB of ROM memory. The first 12 Bytes are reserved for
interrupt vectors. These locations contain the six 16-bit vectors that correspond to
the six available interrupts. See Figure 13.
RAM
This device features 256B of RAM.
Note:
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
22
Figure 13. Program Memory Map (32K ROM)
Expanded Register File
The register file has been expanded to allow for additional system control regis-
ters and for mapping of additional peripheral devices into the register address
area. The Z8 register address space (R0 through R15) has been implemented
as 16 banks, with 16 registers per bank. These register groups are known as the
On-Chip
ROM
Reset Start Address
IRQ5
IRQ5
IRQ4
IRQ4
IRQ3
IRQ3
IRQ2
IRQ2
IRQ1
IRQ1
IRQ0
IRQ0
12
11
10
9
8
7
6
5
4
3
2
1
0
32768
Location of
first Byte of
instruction
executed
after RESET
Interrupt Vector
(Lower Byte)
Interrupt Vector
(Upper Byte)
Not Accessible
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
23
ERF (Expanded Register File). Bits 7–4 of register RP select the working register
group. Bits 3–0 of register RP select the expanded register file bank.
An expanded register bank is also referred to as an expanded
register group (see Figure 14).
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
24
Figure 14. Expanded Register File Architecture
UUUUUUU0
00000000
00000000
00000000
00
0F
7F
F0
FF
FF SPL
00000000
UUUUUUUU
00000000
UUUUUUUU
UUUUUUUU
UUUUUUUU
11111111
00000000
11001111
UUUUUUUU
UUUUUUUU
UUUUUUUU
UUUUUUUU
UUUUUUUU
FE SPH
FD RP
FC FLAGS
FB IMR
FA IRQ
F9 IPR
F8 P01M
F7 P3M
F6 P2M
F5 Reserved
F4 Reserved
F3 Reserved
F2 Reserved
F1 Reserved
F0 Reserved
D7
D6 D5 D4 D3 D2 D1 D0
UU001101
U01000U0
11111110
(F) 0F WDTMR
(F) 0E Reserved
(F) 0D SMR2
(F) 0C Reserved
(F) 0B SMR
(F) 0A Reserved
(F) 09 Reserved
(F) 08 Reserved
(F) 07 Reserved
(F) 06 Reserved
(F) 05 Reserved
(F) 04 Reserved
(F) 03 Reserved
(F) 02 Reserved
(F) 01 Reserved
(F) 00 PCON
76543210
Expanded Register
Bank Pointer
Working Register
UUUUUUUU
UUUUUUUU
00000000
(D) 0C LVD
(D) 0B HI8
(D) 0A LO8
(D) 09 HI16
(D) 08 LO16
(D) 07 TC16H
(D) 06 TC16L
(D) 05 TC8H
(D) 04 TC8L
(D) 03 CTR3
(D) 02 CTR2
(D) 01 CTR1
(D) 00 CTR0
Group Pointer
Register File (Bank 0)**
00011111
*
*
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
U = Unknown
* Not reset with a Stop-Mode Recovery. P1 reserved in 20 and 28-pin package.
** All addresses are in hexadecimal
↑ Is not reset with a Stop-Mode Recovery, except Bit 0
↑↑ Bit 5 Is not reset with a Stop-Mode Recovery
↑↑↑ Bits 5,4,3,2 not reset with a Stop-Mode Recovery
↑↑↑↑ Bits 5 and 4 not reset with a Stop-Mode Recovery
↑↑↑↑↑ Bits 5,4,3,2,1 not reset with a Stop-Mode Recovery
Expanded Reg. Bank 0/Group (0)
*
(0) 03 P3
(0) 02 P2
(0) 01 P1
(0) 00 P0
0U
U
U
U
↑↑↑↑↑
↑↑↑↑
↑↑↑
↑↑
*
*
*
*
*
*
*
*
*
*
*
Expanded Reg. Bank F/Group 0**
Expanded Reg. Bank 0/Group 15**
Register Pointer
Z8® Standard Control Registers
Expanded Reg. Bank D/Group 0
↑
Reset Condition
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
25
The upper nibble of the register pointer (see Figure 15) selects which working reg-
ister group, of 16 bytes in the register file, is accessed out of the possible 256. The
lower nibble selects the expanded register file bank and, in the case of the Crim-
zonTM ZLR32300 family, banks 0, F, and D are implemented. A 0h in the lower
nibble allows the normal register file (bank 0) to be addressed. Any other value
from 1h to Fh exchanges the lower 16 registers to an expanded register bank.
Figure 15. Register Pointer
Example: CrimzonTM ZLR32300: (See Figure 14 on page 24)
R253 RP = 00h
R0 = Port 0
R1 = Port 1
R2 = Port 2
R3 = Port 3
But if:
R253 RP = 0Dh
R0 = CTR0
R1 = CTR1
R2 = CTR2
R3 = CTR3
R253 RP
D7 D6 D5 D4 D3 D2 D1 D0
Expanded Register
File Pointer
Working Register
Pointer
Default Setting After Reset = 0000 0000
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
26
The counter/timers are mapped into ERF group D. Access is easily performed
using the following:
LD RP, #0Dh ; Select ERF D
for access to bank D ; (working
register group 0)
LD R0,#xx ; load CTR0
LD 1, #xx ; load CTR1
LD R1, 2 ; CTR2→CTR1
LD RP, #0Dh ; Select ERF D
for access to bank D ; (working
register group 0)
LD RP, #7Dh ; Select
expanded register bank D and working ; register
group 7 of bank 0 for access.
LD 71h, 2
; CTR2→register 71h
LD R1, 2
; CTR2→register 71h
Register File
The register file (bank 0) consists of 4 I/O port registers, 237 general-purpose reg-
isters, 16 control and status registers (R0–R3, R4–R239, and R240–R255,
respectively), and two expanded registers groups in Banks D (see Table 11) and
F. Instructions can access registers directly or indirectly through an 8-bit address
field, thereby allowing a short, 4-bit register address to use the Register Pointer
(Figure 16). In the 4-bit mode, the register file is divided into 16 working register
groups, each occupying 16 continuous locations. The Register Pointer addresses
the starting location of the active working register group.
Working register group E0–EF can only be accessed through
working registers and indirect addressing modes.
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
27
Figure 16. Register Pointer—Detail
Stack
The internal register file is used for the stack. An 8-bit Stack Pointer SPL (R255) is
used for the internal stack that resides in the general-purpose registers (R4–
R239). SPH (R254) can be used as a general-purpose register.
R7R6R5R4R3R2R1R
The upper nibble of the register file address
provided by the register pointer specifies the
active working-register group.
Specified Working
Register Group
Register Group 1
Register Group 0
I/O Ports
R253
The lower nibble of the
register file address provided
by the instruction points to
the specified register.
* RP = 00: Selects Register Bank 0, Working Register Group 0
R15 to R0
R15 to R4 *
R3 to R0 *
FF
F0
EF
E0
DF
D0
40
3F
30
2F
20
1F
10
0F
00
Register Group 2
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
28
Timers
T8_Capture_HI—HI8(D)0BH
This register holds the captured data from the output of the 8-bit Counter/Timer0.
Typically, this register holds the number of counts when the input signal is 1.
T8_Capture_LO—L08(D)0AH
This register holds the captured data from the output of the 8-bit Counter/Timer0.
Typically, this register holds the number of counts when the input signal is 0.
T16_Capture_HI—HI16(D)09H
This register holds the captured data from the output of the 16-bit Counter/
Timer16. This register holds the MS-Byte of the data.
T16_Capture_LO—L016(D)08H
This register holds the captured data from the output of the 16-bit Counter/
Timer16. This register holds the LS-Byte of the data.
Counter/Timer2 MS-Byte Hold Register—TC16H(D)07H
Field Bit Position Description
T8_Capture_HI [7:0] R/W Captured Data - No Effect
Field Bit Position Description
T8_Capture_L0 [7:0] R/W Captured Data - No Effect
Field Bit Position Description
T16_Capture_HI [7:0] R/W Captured Data - No Effect
Field Bit Position Description
T16_Capture_LO [7:0] R/W Captured Data - No Effect
Field Bit Position Description
T16_Data_HI [7:0] R/W Data
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
29
Counter/Timer2 LS-Byte Hold Register—TC16L(D)06H
Counter/Timer8 High Hold Register—TC8H(D)05H
Counter/Timer8 Low Hold Register—TC8L(D)04H
CTR0 Counter/Timer8 Control Register—CTR0(D)00H
Table 11 lists and briefly describes the fields for this register.
Field Bit Position Description
T16_Data_LO [7:0] R/W Data
Field Bit Position Description
T8_Level_HI [7:0] R/W Data
Field Bit Position Description
T8_Level_LO [7:0] R/W Data
Table 11. CTR0(D)00H Counter/Timer8 Control Register
Field Bit Position Value Description
T8_Enable 7------- R/W 0*
1
0
1
Counter Disabled
Counter Enabled
Stop Counter
Enable Counter
Single/Modulo-N -6------- R/W 0*
1
Modulo-N
Single Pass
Time_Out --5------ R/W 0**
1
0
1
No Counter Time-Out
Counter Time-Out Occurred
No Effect
Reset Flag to 0
T8 _Clock ---43--- R/W 0 0**
0 1
1 0
1 1
SCLK
SCLK/2
SCLK/4
SCLK/8
Capture_INT_Mask -----2-- R/W 0**
1
Disable Data Capture Interrupt
Enable Data Capture Interrupt
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
30
T8 Enable
This field enables T8 when set (written) to 1.
Single/Modulo-N
When set to 0 (Modulo-N), the counter reloads the initial value when the terminal
count is reached. When set to 1 (single-pass), the counter stops when the termi-
nal count is reached.
Timeout
This bit is set when T8 times out (terminal count reached). To reset this bit, write a
1 to its location.
Writing a 1 is the only way to reset the Terminal Count
status condition. Reset this bit before using/enabling the
counter/timers.
The first clock of T8 might not have complete clock width
and can occur any time when enabled.
Take care when using the OR or AND commands to manipulate
CTR0, bit 5 and CTR1, bits 0 and 1 (Demodulation Mode).
These instructions use a Read-Modify-Write sequence in which
the current status from the CTR0 and CTR1 registers is ORed
or ANDed with the designated value and then written back into
the registers.
T8 Clock
These bits define the frequency of the input signal to T8.
Counter_INT_Mask ------1- R/W 0**
1
Disable Time-Out Interrupt
Enable Time-Out Interrupt
P34_Out -------0 R/W 0*
1
P34 as Port Output
T8 Output on P34
Note:
*
Indicates the value upon Power-On Reset.
*
*Indicates the value upon Power-On Reset. Not reset with a Stop Mode recovery.
Table 11. CTR0(D)00H Counter/Timer8 Control Register (Continued)
Field Bit Position Value Description
Caution:
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
31
Capture_INT_Mask
Set this bit to allow an interrupt when data is captured into either LO8 or HI8 upon
a positive or negative edge detection in demodulation mode.
Counter_INT_Mask
Set this bit to allow an interrupt when T8 has a timeout.
P34_Out
This bit defines whether P34 is used as a normal output pin or the T8 output.
T8 and T16 Common Functions—CTR1(0D)01h
This register controls the functions in common with the T8 and T16.
Table 12 lists and briefly describes the fields for this register.
Table 12. CTR1(0D)01H T8 and T16 Common Functions
Field Bit Position Value Description
Mode 7------- R/W 0*
1
Transmit Mode
Demodulation Mode
P36_Out/
Demodulator_Input
-6------ R/W
0*
1
0*
1
Transmit Mode
Port Output
T8/T16 Output
Demodulation Mode
P31
P20
T8/T16_Logic/
Edge _Detect
--54---- R/W
00**
01
10
11
00**
01
10
11
Transmit Mode
AND
OR
NOR
NAND
Demodulation Mode
Falling Edge
Rising Edge
Both Edges
Reserved
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
32
Mode
If the result is 0, the counter/timers are in TRANSMIT mode; otherwise, they are in
DEMODULATION mode.
P36_Out/Demodulator_Input
In TRANSMIT Mode, this bit defines whether P36 is used as a normal output pin
or the combined output of T8 and T16.
In DEMODULATION Mode, this bit defines whether the input signal to the
Counter/Timers is from P20 or P31.
If the input signal is from Port 31, a capture event may also generate an IRQ2
interrupt. To prevent generating an IRQ2, either disable the IRQ2 interrupt by
clearing its IMR bit D2 or use P20 as the input.
Transmit_Submode/
Glitch_Filter
----32-- R/W
00
01
10
11
00
01
10
11
Transmit Mode
Normal Operation
Ping-Pong Mode
T16_Out = 0
T16_Out = 1
Demodulation Mode
No Filter
4 SCLK Cycle
8 SCLK Cycle
Reserved
Initial_T8_Out/
Rising Edge
------1-
R/W
R
W
0
1
0
1
0
1
Transmit Mode
T8_OUT is 0 Initially
T8_OUT is 1 Initially
Demodulation Mode
No Rising Edge
Rising Edge Detected
No Effect
Reset Flag to 0
Initial_T16_Out/
Falling_Edge
-------0
R/W
R
W
0
1
0
1
0
1
Transmit Mode
T16_OUT is 0 Initially
T16_OUT is 1 Initially
Demodulation Mode
No Falling Edge
Falling Edge Detected
No Effect
Reset Flag to 0
Note:
*Default at Power-On Reset.
**Default at Power-On Reset.Not reset with a Stop Mode recovery.
Table 12. CTR1(0D)01H T8 and T16 Common Functions (Continued)
Field Bit Position Value Description
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
33
T8/T16_Logic/Edge _Detect
In TRANSMIT Mode, this field defines how the outputs of T8 and T16 are com-
bined (AND, OR, NOR, NAND).
In DEMODULATION Mode, this field defines which edge should be detected by
the edge detector.
Transmit_Submode/Glitch Filter
In Transmit Mode, this field defines whether T8 and T16 are in the PING-PONG
mode or in independent normal operation mode. Setting this field to “NORMAL
OPERATION Mode” terminates the “PING-PONG Mode” operation. When set to
10, T16 is immediately forced to a 0; a setting of 11 forces T16 to output a 1.
In DEMODULATION Mode, this field defines the width of the glitch that must be fil-
tered out.
Initial_T8_Out/Rising_Edge
In TRANSMIT Mode, if 0, the output of T8 is set to 0 when it starts to count. If 1,
the output of T8 is set to 1 when it starts to count. When the counter is not enabled
and this bit is set to 1 or 0, T8_OUT is set to the opposite state of this bit. This
ensures that when the clock is enabled, a transition occurs to the initial state set
by CTR1, D1.
In DEMODULATION Mode, this bit is set to 1 when a rising edge is detected in the
input signal. In order to reset the mode, a 1 should be written to this location.
Initial_T16 Out/Falling _Edge
In TRANSMIT Mode, if it is 0, the output of T16 is set to 0 when it starts to count. If
it is 1, the output of T16 is set to 1 when it starts to count. This bit is effective only
in Normal or PING-PONG Mode (CTR1, D3; D2). When the counter is not enabled
and this bit is set, T16_OUT is set to the opposite state of this bit. This ensures
that when the clock is enabled, a transition occurs to the initial state set by CTR1,
D0.
In DEMODULATION Mode, this bit is set to 1 when a falling edge is detected in
the input signal. In order to reset it, a 1 should be written to this location.
Modifying CTR1 (D1 or D0) while the counters are enabled
causes unpredictable output from T8/16_OUT.
CTR2 Counter/Timer 16 Control Register—CTR2(D)02H
Table 13 lists and briefly describes the fields for this register.
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
34
T16_Enable
This field enables T16 when set to 1.
Single/Modulo-N
In TRANSMIT Mode, when set to 0, the counter reloads the initial value when it
reaches the terminal count. When set to 1, the counter stops when the terminal
count is reached.
Table 13. CTR2(D)02H: Counter/Timer16 Control Register
Field Bit Position Value Description
T16_Enable 7------- R
W
0*
1
0
1
Counter Disabled
Counter Enabled
Stop Counter
Enable Counter
Single/Modulo-N -6------ R/W
0*
1
0
1
Transmit Mode
Modulo-N
Single Pass
Demodulation Mode
T16 Recognizes Edge
T16 Does Not Recognize
Edge
Time_Out --5----- R
W
0**
1
0
1
No Counter Timeout
Counter Timeout
Occurred
No Effect
Reset Flag to 0
T16 _Clock ---43--- R/W 00**
01
10
11
SCLK
SCLK/2
SCLK/4
SCLK/8
Capture_INT_Mask -----2-- R/W 0**
1
Disable Data Capture Int.
Enable Data Capture Int.
Counter_INT_Mask ------1- R/W 0*
1
Disable Timeout Int.
Enable Timeout Int.
P35_Out -------0 R/W 0*
1
P35 as Port Output
T16 Output on P35
Note:
*Indicates the value upon Power-On Reset.
**Indicates the value upon Power-On Reset. Not reset with a Stop Mode recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
35
In DEMODULATION Mode, when set to 0, T16 captures and reloads on detection
of all the edges. When set to 1, T16 captures and detects on the first edge but
ignores the subsequent edges. For details, see the description of T16 Demodula-
tion Mode on page 43.
Time_Out
This bit is set when T16 times out (terminal count reached). To reset the bit, write
a 1 to this location.
T16_Clock
This bit defines the frequency of the input signal to Counter/Timer16.
Capture_INT_Mask
This bit is set to allow an interrupt when data is captured into LO16 and HI16.
Counter_INT_Mask
Set this bit to allow an interrupt when T16 times out.
P35_Out
This bit defines whether P35 is used as a normal output pin or T16 output.
CTR3 T8/T16 Control Register—CTR3(D)03H
Table 14 lists and briefly describes the fields for this register. This register allows
the T8 and T16 counters to be synchronized.
Table 14. CTR3 (D)03H: T8/T16 Control Register
Field Bit Position Value Description
T16 Enable 7------- R
R
W
W
0**
1
0
1
Counter Disabled
Counter Enabled
Stop Counter
Enable Counter
T8 Enable -6------ R
R
W
W
0**
1
0
1
Counter Disabled
Counter Enabled
Stop Counter
Enable Counter
Sync Mode --5----- R/W 0*
1
Disable Sync Mode
Enable Sync Mode
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
36
Counter/Timer Functional Blocks
Input Circuit
The edge detector monitors the input signal on P31 or P20. Based on CTR1 D5–
D4, a pulse is generated at the Pos Edge or Neg Edge line when an edge is
detected. Glitches in the input signal that have a width less than specified (CTR1
D3, D2) are filtered out (see Figure 17).
Figure 17. Glitch Filter Circuitry
T8 Transmit Mode
Before T8 is enabled, the output of T8 depends on CTR1, D1. If it is 0, T8_OUT is
1; if it is 1, T8_OUT is 0. See Figure 18.
Reserved ---43210 R
W
1
x
Always reads 11111
No Effect
Note: *Indicates the value upon Power-On Reset.
**Indicates the value upon Power-On Reset. Not reset with a Stop Mode recovery.
Table 14. CTR3 (D)03H: T8/T16 Control Register (Continued)
Field Bit Position Value Description
MUX Glitch
Filter
Edge
Detector
P31
P20
Pos
Edge
Neg
Edge
CTR1
D5,D4
CTR1
D6
CTR1
D3, D2
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
37
Figure 18. Transmit Mode Flowchart
Set Timeout Status Bit
(CTR0 D5) and Generate
Timeout_Int if Enabled
Set Timeout Status Bit
(CTR0 D5) and Generate
Timeout_Int if Enabled
T8 (8-Bit)
Transmit Mode
No T8_Enable Bit Set
CTR0, D7
Yes
CTR1, D1
Value
Reset T8_Enable Bit
01
Load TC8L
Reset T8_OUT
Load TC8H
Set T8_OUT
Enable T8
No T8_Timeout
Yes
Single Pass Single
Modulo-N
T8_OUT Value 0
Enable T8
No T8_Timeout
Yes
Pass?
Load TC8H
Set T8_OUT
Load TC8L
Reset T8_OUT
1
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
38
When T8 is enabled, the output T8_OUT switches to the initial value (CTR1, D1).
If the initial value (CTR1, D1) is 0, TC8L is loaded; otherwise, TC8H is loaded into
the counter. In SINGLE-PASS Mode (CTR0, D6), T8 counts down to 0 and stops,
T8_OUT toggles, the timeout status bit (CTR0, D5) is set, and a timeout interrupt
can be generated if it is enabled (CTR0, D1). In Modulo-N Mode, upon reaching
terminal count, T8_OUT is toggled, but no interrupt is generated. From that point,
T8 loads a new count (if the T8_OUT level now is 0), TC8L is loaded; if it is 1,
TC8H is loaded. T8 counts down to 0, toggles T8_OUT, and sets the timeout sta-
tus bit (CTR0, D5), thereby generating an interrupt if enabled (CTR0, D1). One
cycle is thus completed. T8 then loads from TC8H or TC8L according to the
T8_OUT level and repeats the cycle. See Figure 19.
Figure 19. 8-Bit Counter/Timer Circuits
You can modify the values in TC8H or TC8L at any time. The new values take
effect when they are loaded.
To ensure known operation do not write these registers at
the time the values are to be loaded into the counter/timer.
CTR0 D1
Negative Edge
Positive Edge
Z8
®
Data Bus
IRQ4
CTR0 D2
SCLK
Z8® Data Bus
CTR0 D4, D3
Clock
T8_OUT
LO8
TC8H TC8L
Clock
Select
8-Bit
Counter T8
HI8
Caution:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
39
An initial count of 1 is not allowed (a non-function occurs). An
initial count of 0 causes TC8 to count from 0 to FFH to FEH.
The letter H denotes hexadecimal values.
Transition from 0 to FFH is not a timeout condition.
Using the same instructions for stopping the counter/timers
and setting the status bits is not recommended.
Two successive commands are necessary. First, the counter/timers must be
stopped. Second, the status bits must be reset. These commands are required
because it takes one counter/timer clock interval for the initiated event to actually
occur. See Figure 20 and Figure 21.
Figure 20. T8_OUT in Single-Pass Mode
Figure 21. T8_OUT in Modulo-N Mode
T8 Demodulation Mode
The user must program TC8L and TC8H to FFh. After T8 is enabled, when the first
edge (rising, falling, or both depending on CTR1, D5; D4) is detected, it starts to
N
ote:
Caution:
TC8H
Counts
Counter Enable Command;
T8_OUT Switches to Its
Initial Value (CTR1 D1)
T8_OUT Toggles;
Timeout Interrupt
Counter Enable Command;
T8_OUT Switches to Its
Initial Value (CTR1 D1)
Timeout
Interrupt
Timeout
Interrupt
T8_OUT
T8_OUT Toggles
TC8L TC8H TC8H TC8LTC8L
...
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
40
count down. When a subsequent edge (rising, falling, or both depending on
CTR1, D5; D4) is detected during counting, the current value of T8 is comple-
mented and put into one of the capture registers. If it is a positive edge, data is put
into LO8; if it is a negative edge, data is put into HI8. From that point, one of the
edge detect status bits (CTR1, D1; D0) is set, and an interrupt can be generated if
enabled (CTR0, D2). Meanwhile, T8 is loaded with FFh and starts counting again.
If T8 reaches 0, the timeout status bit (CTR0, D5) is set, and an interrupt can be
generated if enabled (CTR0, D1). T8 then continues counting from FFh (see
Figure 22 and Figure 23).
Figure 22. Demodulation Mode Count Capture Flowchart
T8 (8-Bit)
Count Capture
T8 Enable
(Set by User)
No
Yes
Edge Present
What Kind
of Edge
T8 HI8
No
Yes
Negative
FFh T8
Positive
T8 LO8
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
41
Figure 23. Demodulation Mode Flowchart
T8 (8-Bit)
Demodulation Mode
T8 Enable
CTR0, D7
No
Yes
FFh→ TC8
First
Edge Present
Enable TC8
T8_Enable
Bit Set
Edge Present
T8 Timeout
Set Edge Present Status
Bit and Trigger Data
Capture Int. If Enabled
Set Timeout Status
Bit and Trigger
Timeout Int. If Enabled
Continue Counting
Disable TC8
No
Yes
No
Yes
Yes
Yes
No
No
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
42
T16 Transmit Mode
In NORMAL or PING-PONG mode, the output of T16 when not enabled, is depen-
dent on CTR1, D0. If it is a 0, T16_OUT is a 1; if it is a 1, T16_OUT is 0. You can
force the output of T16 to either a 0 or 1 whether it is enabled or not by program-
ming CTR1 D3; D2 to a 10 or 11.
When T16 is enabled, TC16H * 256 + TC16L is loaded, and T16_OUT is switched
to its initial value (CTR1, D0). When T16 counts down to 0, T16_OUT is toggled
(in NORMAL or PING-PONG mode), an interrupt (CTR2, D1) is generated (if
enabled), and a status bit (CTR2, D5) is set. See Figure 24.
Figure 24. 16-Bit Counter/Timer Circuits
Global interrupts override this function as described in
“Interrupts” on page 46.
If T16 is in SINGLE-PASS mode, it is stopped at this point (see Figure 25). If it is
in Modulo-N Mode, it is loaded with TC16H * 256 + TC16L, and the counting con-
tinues (see Figure 26).
You can modify the values in TC16H and TC16L at any time. The new values take
effect when they are loaded.
CTR2 D1
Negative Edge
Positive Edge
Z8® Data Bus
IRQ3
CTR2 D2
SCLK
Z8® Data Bus
CTR2 D4, D3
Clock
T16_OUT
LO16
TC16H TC16L
Clock
Select
16-Bit
Counter T16
HI16
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
43
Do not load these registers at the time the values are to be
loaded into the counter/timer to ensure known operation.
An initial count of 1 is not allowed. An initial count of 0
causes T16 to count from 0 to FFFFH to FFFEH. Transition
from 0 to FFFFH is not a timeout condition.
Figure 25. T16_OUT in Single-Pass Mode
Figure 26. T16_OUT in Modulo-N Mode
T16 DEMODULATION Mode
The user must program TC16L and TC16H to FFH. After T16 is enabled, and the
first edge (rising, falling, or both depending on CTR1 D5; D4) is detected, T16
captures HI16 and LO16, reloads, and begins counting.
If D6 of CTR2 Is 0
When a subsequent edge (rising, falling, or both depending on CTR1, D5; D4) is
detected during counting, the current count in T16 is complemented and put into
HI16 and LO16. When data is captured, one of the edge detect status bits (CTR1,
D1; D0) is set, and an interrupt is generated if enabled (CTR2, D2). T16 is loaded
with FFFFH and starts again.
This T16 mode is generally used to measure space time, the length of time
between bursts of carrier signal (marks).
Caution:
TC16H*256+TC16L Counts
“Counter Enable” Command
T16_OUT Switches to Its
Initial Value (CTR1 D0)
T16_OUT Toggles,
Timeout Interrupt
TC16H*256+TC16L
TC16H*256+TC16L
TC16H*256+TC16L
T16_OUT Toggles,
Timeout Interrupt
T16_OUT Toggles,
Timeout Interrupt
“Counter Enable” Command,
T16_OUT Switches to Its
Initial Value (CTR1 D0)
TC16_OUT
...
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
44
If D6 of CTR2 Is 1
T16 ignores the subsequent edges in the input signal and continues counting
down. A timeout of T8 causes T16 to capture its current value and generate an
interrupt if enabled (CTR2, D2). In this case, T16 does not reload and continues
counting. If the D6 bit of CTR2 is toggled (by writing a 0 then a 1 to it), T16 cap-
tures and reloads on the next edge (rising, falling, or both depending on CTR1,
D5; D4), continuing to ignore subsequent edges.
This T16 mode generally measures mark time, the length of an active carrier sig-
nal burst.
If T16 reaches 0, T16 continues counting from FFFFH. Meanwhile, a status bit
(CTR2 D5) is set, and an interrupt timeout can be generated if enabled (CTR2
D1).
Ping-Pong Mode
This operation mode is only valid in TRANSMIT Mode. T8 and T16 must be pro-
grammed in Single-Pass mode (CTR0, D6; CTR2, D6), and Ping-Pong mode
must be programmed in CTR1, D3; D2. The user can begin the operation by
enabling either T8 or T16 (CTR0, D7 or CTR2, D7). For example, if T8 is enabled,
T8_OUT is set to this initial value (CTR1, D1). According to T8_OUT's level,
TC8H or TC8L is loaded into T8. After the terminal count is reached, T8 is dis-
abled, and T16 is enabled. T16_OUT then switches to its initial value (CTR1, D0),
data from TC16H and TC16L is loaded, and T16 starts to count. After T16 reaches
the terminal count, it stops, T8 is enabled again, repeating the entire cycle. Inter-
rupts can be allowed when T8 or T16 reaches terminal control (CTR0, D1; CTR2,
D1). To stop the ping-pong operation, write 00 to bits D3 and D2 of CTR1. See
Figure 27.
Enabling ping-pong operation while the counter/timers are
running might cause intermittent counter/timer function. Disable
the counter/timers and reset the status flags before instituting
this operation.
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
45
Figure 27. Ping-Pong Mode Diagram
Initiating PING-PONG Mode
First, make sure both counter/timers are not running. Set T8 into Single-Pass
mode (CTR0, D6), set T16 into SINGLE-PASS mode (CTR2, D6), and set the
Ping-Pong mode (CTR1, D2; D3). These instructions can be in random order.
Finally, start PING-PONG mode by enabling either T8 (CTR0, D7) or T16 (CTR2,
D7). See Figure 28.
Figure 28. Output Circuit
The initial value of T8 or T16 must not be 1. If you stop the timer and restart the
timer, reload the initial value to avoid an unknown previous value.
Enable
TC8
Enable
Timeout
TC16
Ping-Pong
CTR1 D3,D2
Timeout
T16_OUT
MUX
CTR1 D3
T8_OUT
P34
AND/OR/NOR/NAND
Logic
MUX
MUX
MUX
P35
P36
P34_Internal
CTR1 D5, D4
P36_Internal
P35_Internal
CTR1, D2
CTR0 D0
CTR1 D6
CTR2 D0
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
46
During PING-PONG Mode
The enable bits of T8 and T16 (CTR0, D7; CTR2, D7) are set and cleared alter-
nately by hardware. The timeout bits (CTR0, D5; CTR2, D5) are set every time the
counter/timers reach the terminal count.
Timer Output
The output logic for the timers is illustrated in Figure 28. P34 is used to output T8-
OUT when D0 of CTR0 is set. P35 is used to output the value of TI6-OUT when
D0 of CTR2 is set. When D6 of CTR1 is set, P36 outputs the logic combination of
T8-OUT and T16-OUT determined by D5 and D4 of CTR1.
Interrupts
The CrimzonTM ZLR32300 features six different interrupts (Table 15). The inter-
rupts are maskable and prioritized (Figure 29). The six sources are divided as fol-
lows: three sources are claimed by Port 3 lines P33–P31, two by the counter/
timers (Table 15) and one for low voltage detection. The Interrupt Mask Register
(globally or individually) enables or disables the six interrupt requests.
The source for IRQ is determined by bit 1 of the Port 3 mode register (P3M).
When in digital mode, Pin P33 is the source. When in analog mode the output of
the stop mode recovery source logic is used as the source for the interrupt. See
Figure 34, STOP Mode Recovery Source, on page 55.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
47
Figure 29. Interrupt Block Diagram
Low-Voltage
Detection
Timer 8
Timer 16
Interrupt Edge
Select
IMR
IPR
Priority
Logic
IRQ
5
IRQ2 IRQ0 IRQ1 IRQ3 IRQ4 IRQ5
P31 P32
IRQ Register
D6, D7
Global
Interrupt
Enable
Interrupt
Request
Vector Select
D1 of P3M Register
P33
01
STOP Mode Recovery Source
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
48
When more than one interrupt is pending, priorities are resolved by a programma-
ble priority encoder controlled by the Interrupt Priority Register. An interrupt
machine cycle activates when an interrupt request is granted. As a result, all sub-
sequent interrupts are disabled, and the Program Counter and Status Flags are
saved. The cycle then branches to the program memory vector location reserved
for that interrupt. All CrimzonTM ZLR32300 interrupts are vectored through loca-
tions in the program memory. This memory location and the next byte contain the
16-bit address of the interrupt service routine for that particular interrupt request.
To accommodate polled interrupt systems, interrupt inputs are masked, and the
Interrupt Request register is polled to determine which of the interrupt requests
require service.
An interrupt resulting from AN1 is mapped into IRQ2, and an interrupt from AN2 is
mapped into IRQ0. Interrupts IRQ2 and IRQ0 can be rising, falling, or both edge
triggered. These interrupts are programmable by the user. The software can poll
to identify the state of the pin.
Programming bits for the Interrupt Edge Select are located in the IRQ Register
(R250), bits D7 and D6. The configuration is indicated in Table 16.
Table 15. Interrupt Types, Sources, and Vectors
Name Source Vector Location Comments
IRQ0 P32 0,1 External (P32), Rising, Falling Edge Triggered
IRQ1 P33 2,3 External (P33), Falling Edge Triggered
IRQ2 P31, TIN 4,5 External (P31), Rising, Falling Edge Triggered
IRQ3 T16 6,7 Internal
IRQ4 T8 8,9 Internal
IRQ5 LVD 10,11 Internal
Table 16. IRQ Register
IRQ Interrupt Edge
D7 D6 IRQ2 (P31) IRQ0 (P32)
00F F
01F R
10R F
11R/F R/F
Note: F = Falling Edge; R = Rising Edge
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
49
Clock
The device’s on-chip oscillator has a high-gain, parallel-resonant amplifier, for
connection to a crystal, ceramic resonator, or any suitable external clock source
(XTAL1 = Input, XTAL2 = Output). The crystal must be AT cut, 1 MHz to 8 MHz
maximum, with a series resistance (RS) less than or equal to 100 Ω. The on-chip
oscillator can be driven with a suitable external clock source.
The crystal must be connected across XTAL1 and XTAL2 using the recommended
capacitors (capacitance greater than or equal to 22 pF) from each pin to ground.
Figure 30. Oscillator Configuration
C1
C2
C1
C2
XTAL1
XTAL2
XTAL1
XTAL2
XTAL1
XTAL2
Rf
Rd
Ceramic Resonator
C1, C2 = 33 pF TYP*
f = 8 MHz
* Preliminary value including pin parasitics
External Clock
32 KHz XTAL
C1 = 20 pF, C = 33 pF
Rd = 56-470 K
Rf = 10 M
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
50
Power-On Reset
A timer circuit clocked by a dedicated on-board RC-oscillator is used for the
Power-On Reset (POR) timer function. The POR time allows VDD and the oscilla-
tor circuit to stabilize before instruction execution begins.
The POR timer circuit is a one-shot timer triggered by one of three conditions:
•
Power Fail to Power OK status, including Waking up from VBO Standby
•
Stop-Mode Recovery (if D5 of SMR = 1)
•
WDT Timeout
The POR timer is 2.5 ms minimum. Bit 5 of the Stop-Mode Register determines
whether the POR timer is bypassed after Stop-Mode Recovery (typical for external
clock).
HALT Mode
This instruction turns off the internal CPU clock, but not the XTAL oscillation. The
counter/timers and external interrupts IRQ0, IRQ1, IRQ2, IRQ3, IRQ4, and IRQ5
remain active. The devices are recovered by interrupts, either externally or inter-
nally generated. An interrupt request must be executed (enabled) to exit HALT
Mode. After the interrupt service routine, the program continues from the instruc-
tion after HALT Mode.
STOP Mode
This instruction turns off the internal clock and external crystal oscillation, reduc-
ing the standby current to 10 µA or less. STOP Mode is terminated only by a
reset, such as WDT timeout, POR, SMR or external reset. This condition causes
the processor to restart the application program at address 000CH. To enter STOP
(or HALT) mode, first flush the instruction pipeline to avoid suspending execution
in mid-instruction. Execute a NOP (Opcode = FFH) immediately before the appro-
priate sleep instruction, as follows:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
51
FF NOP ; clear the pipeline
6F STOP ; enter STOP mode
or
FF NOP ; clear the pipeline
7F HALT ; enter HALT Mode
Port Configuration Register
The Port Configuration (PCON) register (Figure 31) configures the comparator
output on Port 3. It is located in the expanded register 2 at Bank F, location 00.
PCON(FH)00h
Figure 31. Port Configuration Register (PCON) (Write Only)
Comparator Output Port 3 (D0)
Bit 0 controls the comparator used in Port 3. A 1 in this location brings the compar-
ator outputs to P34 and P37, and a 0 releases the Port to its standard I/O configu-
ration.
Port 1 Output Mode (D1)
Bit 1 controls the output mode of port 1. A 1 in this location sets the output to
push-pull, and a 0 sets the output to open-drain.
D7 D6 D5 D4 D3 D2 D1 D0
Comparator Output Port 3
0 P34, P37 Standard Output*
1 P34, P37 Comparator Output
Port 1
0: Open-Drain
1: Push-Pull*
Port 0
0: Open-Drain
1: Push-Pull*
Reserved (Must be 1)
* Default setting after reset
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
52
Port 0 Output Mode (D2)
Bit 2 controls the output mode of port 0. A 1 in this location sets the output to
push-pull, and a 0 sets the output to open-drain.
Stop-Mode Recovery Register (SMR)
This register selects the clock divide value and determines the mode of STOP
mode Recovery (Figure 32). All bits are write only except bit 7, which is read only.
Bit 7 is a flag bit that is hardware set on the condition of Stop recovery and reset
by a power-on cycle. Bit 6 controls whether a low level or a high level at the XOR-
gate input (Figure 34 on page 55) is required from the recovery source. Bit 5 con-
trols the reset delay after recovery. Bits D2, D3, and D4 of the SMR register spec-
ify the source of the Stop-Mode Recovery signal. Bits D0 determines if SCLK/
TCLK are divided by 16 or not. The SMR is located in Bank F of the Expanded
Register Group at address 0BH.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
53
SMR(0F)0Bh
Figure 32. STOP Mode Recovery Register
SCLK/TCLK Divide-by-16 Select (D0)
D0 of the SMR controls a divide-by-16 prescaler of SCLK/TCLK (Figure 33). This
control selectively reduces device power consumption during normal processor
execution (SCLK control) and/or Halt Mode (where TCLK sources interrupt logic).
After STOP mode Recovery, this bit is set to a 0.
D7 D6 D5 D4 D3 D2 D1 D0
SCLK/TCLK Divide-by-16
0 OFF * *
1 ON
Reserved (Must be 0)
Stop-Mode Recovery Source
000 POR Only *
001 Reserved
010 P31
011 P32
100 P33
101 P27
110 P2 NOR 0-3
111 P2 NOR 0-7
Stop Delay
0 OFF
1 ON * * * *
Stop Recovery Level * * *
0 Low *
1 High
Stop Flag
0 POR *
1 Stop Recovery * *
* Default setting after reset
* * Default setting after reset and stop-mode recovery
* * * At the XOR gate input
* * * * Default setting after reset. Recommended to be set to 1 if using a crystal or
resonator clock source.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
54
Figure 33. SCLK Circuit
Stop-Mode Recovery Source (D2, D3, and D4)
These three bits of the SMR specify the wake-up source of the Stop recovery
(Figure 34 and Table 18).
Stop-Mode Recovery Register 2—SMR2(F)0Dh
Table 17 lists and briefly describes the fields for this register.
Table 17. SMR2(F)0Dh:STOP mode Recovery Register 2*
Field Bit Position Value Description
Reserved 7------- 0 Reserved (Must be 0)
Recovery Level -6------ W0
†
1
Low
High
Reserved --5----- 0 Reserved (Must be 0)
Source ---432-- W 000†
001
010
011
100
101
110
111
A. POR Only
B. NAND of P23–P20
C. NAND of P27–P20
D. NOR of P33–P31
E. NAND of P33–P31
F. NOR of P33–P31, P00, P07
G. NAND of P33–P31, P00, P07
H. NAND of P33–P31, P22–P20
Reserved ------10 00 Reserved (Must be 0)
Notes:
* Port pins configured as outputs are ignored as an SMR recovery source.
† Indicates the value upon Power-On Reset
SCLK
TCLKSMR, D0
2÷
OSC
16÷
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
55
Figure 34. STOP Mode Recovery Source
SMR2 D4 D3 D2
100
SMR2 D4 D3 D2
111
SMR D4D3D2
010
SMR D4D3D2
111
SMR D4D3D2
101
SMR D4D3D2
100
SMR D4D3D2
011
SMR D4D3D2
000
SMR D4D3D2
110
VCC
P31
P32
P33
P27
P20
P23
P20
P27
SMR2 D4 D3 D2
001
SMR2 D4 D3 D2
000
SMR2 D4 D3 D2
010
SMR2 D4 D3 D2
011
SMR2 D4 D3 D2
101
SMR2 D4 D3 D2
110
VCC
P20
P23
P20
P27
P31
P32
P33
P31
P32
P33
P31
P32
P33
P00
P07
P31
P32
P33
P00
P07
P31
P32
P33
P20
P21
SMR D6
SMR2 D6
To RESET and WDT
Circuitry (Active Low)
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
56
Any Port 2 bit defined as an output drives the corresponding
input to the default state. This condition allows the remaining
inputs to control the AND/OR function. Refer to SMR2 register
on page 57 for other recover sources.
STOP Mode Recovery Delay Select (D5)
This bit, if low, disables the TPOR delay after STOP mode recovery. The default
configuration of this bit is 1. If the “fast” wake up is selected, the Stop-Mode
Recovery source must be kept active for at least 10 TpC.
This bit must be set to 1 if using a crystal or resonator clock
source. The TPOR delay allows the clock source to stabilize
before executing instructions.
STOP Mode Recovery Edge Select (D6)
A 1 in this bit position indicates that a High level on any one of the recovery
sources wakes the CrimzonTM ZLR32300 from STOP mode. A 0 indicates Low
level recovery. The default is 0 on POR.
Cold or Warm Start (D7)
This bit is read only. It is set to 1 when the device is recovered from STOP mode.
The bit is set to 0 when the device reset is other than STOP Mode Recovery
(SMR).
Table 18. STOP Mode Recovery Source
SMR:432 Operation
D4 D3 D2 Description of Action
0 0 0 POR and/or external reset recovery
001Reserved
010P31 transition
011P32 transition
100P33 transition
101P27 transition
1 1 0 Logical NOR of P20 through P23
1 1 1 Logical NOR of P20 through P27
Note:
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
57
STOP Mode Recovery Register 2 (SMR2)
This register determines the mode of STOP Mode Recovery for SMR2
(Figure 35).
SMR2(0F)Dh
Figure 35. STOP Mode Recovery Register 2 ((0F)DH:D2–D4, D6 Write Only)
If SMR2 is used in conjunction with SMR, either of the specified events causes a
STOP mode Recovery.
Port pins configured as outputs are ignored as an SMR or
SMR2 recovery source. For example, if the NAND or P23–P20
is selected as the recovery source and P20 is configured as an
output, the remaining SMR pins (P23–P21) form the NAND
equation.
D7 D6 D5 D4 D3 D2 D1 D0
Reserved (Must be 0)
Reserved (Must be 0)
Stop-Mode Recovery Source 2
000 POR Only *
001 NAND P20, P21, P22, P23
010 NAND P20, P21, P22, P23, P24, P25, P26, P27
011 NOR P31, P32, P33
100 NAND P31, P32, P33
101 NOR P31, P32, P33, P00, P07
110 NAND P31, P32, P33, P00, P07
111 NAND P31, P32, P33, P20, P21, P22
Reserved (Must be 0)
Recovery Level * *
0Low *
1 High
Reserved (Must be 0)
Note: If used in conjunction with SMR, either of the two specified events causes a Stop-Mode Recovery.
* Default setting after reset
* * At the XOR gate input
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
58
Watch-Dog Timer Mode Register (WDTMR)
The Watch-Dog Timer (WDT) is a retriggerable one-shot timer that resets the Z8
if it reaches its terminal count. The WDT must initially be enabled by executing the
WDT instruction. On subsequent executions of the WDT instruction, the WDT is
refreshed. The WDT circuit is driven by an on-board RC-oscillator. The WDT
instruction affects the Zero (Z), Sign (S), and Overflow (V) flags.
The POR clock source the internal RC-oscillator. Bits 0 and 1 of the WDT register
control a tap circuit that determines the minimum timeout period. Bit 2 determines
whether the WDT is active during HALT, and Bit 3 determines WDT activity during
Stop. Bits 4 through 7 are reserved (Figure 36). This register is accessible only
during the first 60 processor cycles (120 XTAL clocks) from the execution of the
first instruction after Power-On-Reset, Watch-Dog Reset, or a Stop-Mode
Recovery (Figure 35). After this point, the register cannot be modified by any
means (intentional or otherwise). The WDTMR cannot be read. The register is
located in Bank F of the Expanded Register Group at address location 0Fh. It is
organized as shown in Figure 36.
WDTMR(0F)0Fh
Figure 36. WATCH-DOG TIMER Mode Register (Write Only)
WDT Time Select (D0, D1)
This bit selects the WDT time period. It is configured as indicated in Table 19.
D7 D6 D5 D4 D3 D2 D1 D0
WDT TAP INT RC OSC
00 10 ms min.
01* 20 ms min.
10 40 ms min.
11 160 ms min.
WDT During HALT
0OFF
1ON *
WDT During Stop
0OFF
1ON *
Reserved (Must be 0)
* Default setting after reset
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
59
WDTMR During Halt (D2)
This bit determines whether or not the WDT is active during HALT Mode. A 1 indi-
cates active during HALT. The default is 1. See Figure 37.
Table 19. Watch-Dog Timer Time Select
D1 D0 Timeout of Internal RC-Oscillator
0 0 10ms min.
0 1 20ms min.
1 0 40ms min.
1 1 160ms min.
-
* CLR1 and CLR2 enable the WDT/POR and 18 Clock Reset timers respectively upon a Low-to-High
input translation.
+
From
STOP
mode
Recovery
Stop Delay
Select (SMR)
5 Clock Filter *CLR2 18 Clock RESET
CLK Generator RESET
WDT TAP SELECT
POR 10 ms 20 ms 40 ms 160
CLK
*CLR1 WDT/POR Counter Chain
Internal
RC
Oscillator.
WDT
VDD
Low Operating
Voltage Det.
VBO
VDD
Internal
RESET
Active
High
12-ns Glitch Filter
XTAL
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
60
Figure 37. Resets and WDT
WDTMR During STOP (D3)
This bit determines whether or not the WDT is active during STOP Mode. A 1 indi-
cates active during Stop. The default is 1.
ROM Selectable Options
There are seven ROM Selectable Options to choose from based on ROM code
requirements. These are listed in Table 20.
Voltage Brown-Out/Standby
An on-chip Voltage Comparator checks that the VDD is at the required level for
correct operation of the device. Reset is globally driven when VDD falls below VBO.
A small drop in VDD causes the XTAL1 and XTAL2 circuitry to stop the crystal or
resonator clock. If the VDD is allowed to stay above VRAM, the RAM content is pre-
served. When the power level is returned to above VBO, the device performs a
POR and functions normally.
Table 20. ROM Selectable Options
Port 00–03 Pull-Ups On/Off
Port 04–07 Pull-Ups On/Off
Port 10–13 Pull-Ups On/Off
Port 14–17 Pull-Ups On/Off
Port 20–27 Pull-Ups On/Off
Port 3 Pull-Ups On/Off
Watch-Dog Timer at Power-On Reset On/Off
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Functional Description
61
Low-Voltage Detection Register—LVD(D)0CH
Voltage detection does not work at STOP mode. It must be
disabled during STOP mode in order to reduce current.
Do not modify register P01M while checking a low-voltage
condition. Switching noise of both ports 0 and 1 together might
trigger the LVD flag.
Voltage Detection and Flags
The Voltage Detection register (LVD, register 0Ch at the expanded register bank
0Dh) offers an option of monitoring the VCC voltage. The Voltage Detection is
enabled when bit 0 of LVD register is set. Once Voltage Detection is enabled, the
the VCC level is monitored in real time. The flags in the LVD register valid 20uS
after Voltage Detection is enabled. The HVD flag (bit 2 of the LVD register) is set
only if VCC is higher than VHVD. The LVD flag (bit 1 of the LVD register) is set only
if VCC is lower than the VLVD. When Voltage Detection is enabled, the LVD flag
also triggers IRQ5. The IRQ bit 5 latches the low voltage condition until it is
cleared by instructions or reset. The IRQ5 interrupt is served if it is enabled in the
IMR register. Otherwise, bit 5 of IRQ register is latched as a flag only.
If it is necessary to receive an LVD interrupt upon power-up at
an operating voltage lower than the low battery detect
threshold, enable interrupts using the Enable Interrupt
instruction (EI) prior to enabling the voltage detection.
Field Bit Position Description
LVD 76543--- Reserved
No Effect
-----2-- R 1
0*
HVD flag set
HVD flag reset
------1- R 1
0*
LVD flag set
LVD flag reset
-------0 R/W 1
0*
Enable VD
Disable VD
*
Default after POR
Note:
Note:
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
62
Expanded Register File Control Registers (0D)
The expanded register file control registers (0D) are depicted in Figure 38 through
Figure 42.
CTR0(0D)00h
D7 D6 D5 D4 D3 D2 D1 D0
0 P34 as Port Output *
1 Timer8 Output
0 Disable T8 Timeout Interrupt**
1 Enable T8 Timeout Interrupt
0 Disable T8 Data Capture Interrupt**
1 Enable T8 Data Capture Interrupt
00 SCLK on T8**
01 SCLK/2 on T8
10 SCLK/4 on T8
11 SCLK/8 on T8
R 0 No T8 Counter Timeout**
R 1 T8 Counter Timeout Occurred
W 0 No Effect
W 1 Reset Flag to 0
0 Modulo-N*
1 Single Pass
R 0 T8 Disabled *
R 1 T8 Enabled
W0 Stop T8
W 1 Enable T8
* Default setting after reset
**Default setting after reset. Not reset with a Stop Mode recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
63
Figure 38. TC8 Control Register ((0D)O0H: Read/Write Except Where Noted)
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
64
Figure 39. T8 and T16 Common Control Functions ((0D)01H: Read/Write)
CTR1(0D)01h
D7 D6 D5 D4 D3 D2 D1 D0
Transmit Mode*
R/W 0 T16_OUT is 0 initially*
1 T16_OUT is 1 initially
Demodulation Mode
R 0 No Falling Edge Detection
R 1 Falling Edge Detection
W 0 No Effect
W 1 Reset Flag to 0
Transmit Mode*
R/W 0 T8_OUT is 0 initially*
1 T8_OUT is 1 initially
Demodulation Mode
R 0 No Rising Edge Detection
R 1 Rising Edge Detection
W 0 No Effect
W 1 Reset Flag to 0
Transmit Mode*
0 0 Normal Operation*
0 1 Ping-Pong Mode
1 0 T16_OUT = 0
1 1 T16_OUT = 1
Demodulation Mode
0 0 No Filter
0 1 4 SCLK Cycle Filter
1 0 8 SCLK Cycle Filter
11Reserved
Transmit Mode/T8/T16 Logic
0 0 AND**
01OR
1 0 NOR
1 1 NAND
Demodulation Mode
0 0 Falling Edge Detection
01Rising Edge Detection
1 0 Both Edge Detection
11Reserved
Transmit Mode
0 P36 as Port Output *
1 P36 as T8/T16_OUT
Demodulation Mode
0 P31 as Demodulator Input
1 P20 as Demodulator Input
Transmit/Demodulation Mode
0 Transmit Mode *
1 Demodulation Mode
* Default setting after reset.
**Default setting after reset. Not reset with a Stop Mode
recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
65
Take care in differentiating the TRANSMIT Mode from
DEMODULATION Mode. Depending on which of these two
modes is operating, the CTR1 bit has different functions.
Changing from one mode to another cannot be performed
without disabling the counter/timers.
Notes:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
66
CTR2(0D)02h
Figure 40. T16 Control Register ((0D) 2H: Read/Write Except Where Noted)
D7 D6 D5 D4 D3 D2 D1 D0
0 P35 is Port Output *
1 P35 is TC16 Output
0 Disable T16 Timeout Interrupt*
1 Enable T16 Timeout Interrupt
0 Disable T16 Data Capture Interrupt**
1 Enable T16 Data Capture Interrupt
0 0 SCLK on T16**
0 1 SCLK/2 on T16
1 0 SCLK/4 on T16
1 1 SCLK/8 on T16
R 0 No T16 Timeout**
R 1 T16 Timeout Occurs
W 0 No Effect
W 1 Reset Flag to 0
Transmit Mode
0 Modulo-N for T16*
0 Single Pass for T16
Demodulator Mode
0 T16 Recognizes Edge
1 T16 Does Not Recognize Edge
R 0 T16 Disabled *
R 1 T16 Enabled
W 0 Stop T16
W1Enable T16
* Default setting after reset.
**Default setting after reset. Not reset with a Stop
Mode recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0D)
67
CTR3(0D)03h
Figure 41. T8/T16 Control Register (0D)03H: Read/Write (Except Where Noted)
If Sync Mode is enabled, the first pulse of T8 (carrier) is always
synchronized with T16 (demodulated signal). It can always
provide a full carrier pulse.
D7 D6 D5 D4 D3 D2 D1 D0
Reserved
0 No Effect
1 Always reads 11111
Sync Mode
0** Disable Sync Mode
1 Enable Sync Mode
T8 Enable
0* Counter Disabled
1 Counter Enabled
0 Stop Counter
1 Enable Counter
T16 Enable
0* Counter Disabled
1 Counter Enabled
0 Stop Counter
1 Enable Counter
* Default setting after reset.
**Default setting after reset. Not reset with a Stop
Mode recovery.
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0F)
68
LVD(0D)0Ch
Figure 42. Voltage Detection Register
Do not modify register P01M while checking a low-voltage
condition. Switching noise of both ports 0 and 1 together might
trigger the LVD flag.
Expanded Register File Control Registers (0F)
The expanded register file control registers (0F) are depicted in Figures 43
through Figure 56.
D7 D6 D5 D4 D3 D2 D1 D0
Voltage Detection
0: Disable *
1: Enable
LVD Flag (Read only)
0: LVD flag reset *
1: LVD flag set
HVD Flag (Read only)
0: HVD flag reset *
1: HVD flag set
Reserved (Must be 0)
* Default setting after reset.
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0F)
69
PCON(0F)00h
Figure 43. Port Configuration Register (PCON)(0F)00H: Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
Comparator Output Port 3
0 P34, P37 Standard Output *
1 P34, P37 Comparator Output
Port 1
0: Open-Drain
1: Push-Pull*
Port 0
0: Open-Drain
1: Push-Pull *
Reserved (Must be 1)
* Default setting after reset
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0F)
70
SMR(0F)0Bh
Figure 44. STOP mode Recovery Register ((0F)0BH: D6–D0=Write Only, D7=Read
Only)
D7 D6 D5 D4 D3 D2 D1 D0
SCLK/TCLK Divide-by-16
0 OFF *
1 ON
Reserved (Must be 0)
Stop-Mode Recovery Source
000 POR Only * *
001 Reserved
010 P31
011 P32
100 P33
101 P27
110 P2 NOR 0–3
111 P2 NOR 0–7
Stop Delay
0OFF
1 ON * * * *
Stop Recovery Level * * *
0 Low **
1 High
Stop Flag
0 POR * * * * *
1 Stop Recovery * *
* Default setting after reset
* * Default setting after reset and stop-mode recovery
* * * At the XOR gate input
* * * * Default setting after reset. Recommended to be set to 1 if using a crystal or
resonator clock source.Not reset with Stop Mode recovery.
* * * * * Default setting after Power-On Reset.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Expanded Register File Control Registers (0F)
71
SMR2(0F)0Dh
Figure 45. STOP mode Recovery Register 2 ((0F)0DH:D2–D4, D6 Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
Reserved (Must be 0)
Reserved (Must be 0)
Stop-Mode Recovery Source 2
000 POR Only *
001 NAND P20, P21, P22, P23
010 NAND P20, P21, P22, P23, P24, P25, P26, P27
011 NOR P31, P32, P33
100 NAND P31, P32, P33
101 NOR P31, P32, P33, P00, P07
110 NAND P31, P32, P33, P00, P07
111 NAND P31, P32, P33, P20, P21, P22
Reserved (Must be 0)
Recovery Level * *
0Low
1 High
Reserved (Must be 0)
Note: If used in conjunction with SMR, either of the two specified events causes a Stop-Mode Recovery.
* Default setting after reset. Not reset with a Stop Mode recovery.
* * At the XOR gate input
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
72
WDTMR(0F)0Fh
Figure 46. Watch-Dog Timer Register ((0F) 0FH: Write Only)
Standard Control Registers
R246P2M(F6H)
Figure 47. Port 2 Mode Register (F6H: Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
WDT TAP INT RC OSC
00 10 ms min.
01* 20 ms min.
10 40 ms min.
11 160 ms min.
WDT During HALT
0OFF
1ON *
WDT During Stop
0OFF
1ON *
Reserved (Must be 0)
* Default setting after reset. Not reset wit a Stop Mode recovery.
D7 D6 D5 D4 D3 D2 D1 D0
P27–P20 I/O Definition
0 Defines bit as OUTPUT
1 Defines bit as INPUT *
* Default setting after reset. Not reset wit a Stop Mode recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
73
R247P3M(F7H)
Figure 48. Port 3 Mode Register (F7H: Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
0: Port 2 Open Drain *
1: Port 2 Push-Pull
0= P31, P32 Digital Mode*
1= P31, P32 Analog Mode
Reserved (Must be 0)
* Default setting after reset. Not reset wit a Stop Mode recovery.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
74
R248 P01M(F8H)
Figure 49. Port 0 and 1 Mode Register (F8H: Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
P00–P03 Mode
0: Output
1: Input *
Reserved (Must be 0)
Reserved (Must be 1)
P17–P10 Mode
0: Byte Output
1: Byte Input*
Reserved (Must be 0)
P07–P04 Mode
0: Output
1: Input *
Reserved (Must be 0)
* Default setting after reset; only P00, P01 and P07 are available on CrimzonTM
ZLR32300 20-pin configurations.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
75
R249 IPR(F9H)
Figure 50. Interrupt Priority Register (F9H: Write Only)
D7 D6 D5 D4 D3 D2 D1 D0
Interrupt Group Priority
000 Reserved
001 C > A > B
010 A > B >C
011 A > C > B
100 B > C > A
101 C > B > A
110 B > A > C
111 Reserved
IRQ1, IRQ4, Priority
(Group C)
0: IRQ1 > IRQ4
1: IRQ4 > IRQ1
IRQ0, IRQ2, Priority
(Group B)
0: IRQ2 > IRQ0
1: IRQ0 > IRQ2
IRQ3, IRQ5, Priority
(Group A)
0: IRQ5 > IRQ3
1: IRQ3 > IRQ5
Reserved; must be 0
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
76
R250 IRQ(FAH)
Figure 51. Interrupt Request Register (FAH: Read/Write)
R251 IMR(FBH)
Figure 52. Interrupt Mask Register (FBH: Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
IRQ0 = P32 Input
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = T16
IRQ4 = T8
IRQ5 = LVD
Inter Edge
P31↓P32↓ = 00
P31↓P32↑ = 01
P31↑P32↓ = 10
P31↑↓ P32↑↓ = 11
D7 D6 D5 D4 D3 D2 D1 D0
1 Enables IRQ5–IRQ0
(D0 = IRQ0)
Reserved (Must be 0)
0 Master Interrupt Disable *
1 Master Interrupt Enable * *
* Default setting after reset
* * Only by using EI, DI instruction; DI is required before changing the IMR register
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Standard Control Registers
77
R252 Flags(FCH)
Figure 53. Flag Register (FCH: Read/Write)
R253 RP(FDH)
Figure 54. Register Pointer (FDH: Read/Write)
D7 D6 D5 D4 D3 D2 D1 D0
User Flag F1
User Flag F2
Half Carry Flag
Decimal Adjust Flag
Overflow Flag
Sign Tag
Zero Flag
Carry Flag
D7 D6 D5 D4 D3 D2 D1 D0
Expanded Register Bank Pointer
Working Register Pointer
Default setting after reset = 0000 0000
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
78
R254 SPH(FEH)
Figure 55. Stack Pointer High (FEH: Read/Write)
R255 SPL(FFH)
Figure 56. Stack Pointer Low (FFH: Read/Write)
Package Information
Package information for all versions of CrimzonTM ZLR32300 is depicted in
Figures 57 through Figure 63.
D7 D6 D5 D4 D3 D2 D1 D0
General-Purpose Register
D7 D6 D5 D4 D3 D2 D1 D0
Stack Pointer Low
Byte (SP7–SP0)
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
79
Figure 57. 20-Pin PDIP Package Diagram
Figure 58. 20-Pin SOIC Package Diagram
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
80
Figure 59. 20-Pin SSOP Package Diagram
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
81
Figure 60. 28-Pin SOIC Package Diagram
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
82
Figure 61. 28-Pin PDIP Package Diagram
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
83
Figure 62. 28-Pin SSOP Package Diagram
SYMBOL
A
A1
B
C
A2
e
MILLIMETER INCH
MIN MAX MIN MAX
1.73
0.05
1.68
0.25
5.20
0.65 TYP
0.09
10.07
7.65
0.63
1.86
0.0256 TYP
0.13
10.20
1.73
7.80
5.30
1.99
0.21
1.78
0.75
0.068
0.002
0.066
0.010
0.205
0.004
0.397
0.301
0.025
0.073
0.005
0.068
0.209
0.006
0.402
0.307
0.030
0.078
0.008
0.070
0.015
0.212
0.008
0.407
0.311
0.037
0.38
0.20
10.33
5.38
7.90
0.95
NOM NOM
D
E
H
L
CONTROLLING DIMENSIONS: MM
LEADS ARE COPLANAR WITHIN .004 INCHES .
H
C
DETAIL A
E
D
28 15
114
SEATING PLANE
A2
e
A
Q1
A1
B
L
0 - 8
DETAIL 'A'
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Package Information
84
Figure 63. 48-Pin SSOP Package Design
Please check with ZiLOG on the actual bonding diagram and
coordinate for chip-on-board assembly.
CONTROLLING DIMENSIONS : MM
LEADS ARE COPLANAR WITHIN .004 INCH
D
E H
1
A2 A
e
SEATING PLANE
b
48 25
c
Detail A
Detail A
0-8˚
L
1 24
Note:
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Ordering Information
85
Ordering Information
I
Memory Size Part Number Description
32K
ZLR32300H4832X 48-pin SSOP 32K ROM
ZLR32300H2832X 28-pin SSOP 32K ROM
ZLR32300P2832X 28-pin PDIP 32K ROM
ZLR32300S2832X 28-pin SOIC 32K ROM
ZLR32300H2032X 20-pin SSOP 32K ROM
ZLR32300P2032X 20-pin PDIP 32K ROM
ZLR32300S2032X 20-pin SOIC 32K ROM
24K
ZLR32300H4824X 48-pin SSOP 24K ROM
ZLR32300H2824X 28-pin SSOP 24K ROM
ZLR32300P2824X 28-pin PDIP 24K ROM
ZLR32300S2824X 28-pin SOIC 24K ROM
ZLR32300H2024X 20-pin SSOP 24K ROM
ZLR32300P2024X 20-pin PDIP 24K ROM
ZLR32300S2024X 20-pin SOIC 24K ROM
16K
ZLR32300H4816X 48-pin SSOP 16K ROM
8K
ZLR32300H4808X 48-pin SSOP 8K ROM
4K
ZLR32300H4804X 48-pin SSOP 4K ROM
ZLP128ICE01ZEM In-Circuit Emulator
ZLP323ICE01ZAC 40-PDIP/48-SSOP
Accessory Kit
Note:
Contact www.zilog.com for the die form.
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Ordering Information
86
For fast results, contact your local ZiLOG sales office for assistance in ordering
the part desired.
Codes
ZL = Infrared Family
R = ROM
32300 = Family Designation
P = Package Type:
P = Plastic DIP
H = SSOP
S = SOIC
## = Number of Pins
CC = Memory Size
X = Molding Compound
Example
ZL R 32300 P 48 32 C
Molding compound
Memory Size
Number of Pins
Package Type
Family Designation
ROM
Infrared Family
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Index
87
Index
Numerics
16-bit counter/timer circuits 43
20-pin DIP package diagram 79
20-pin SSOP package diagram 80
28-pin DIP package diagram 82
28-pin SOICpackage diagram 81
28-pin SSOP package diagram 83
40-pin DIP package diagram 83
48-pin SSOP package diagram 84
8-bit counter/timer circuits 39
A
absolute maximum ratings 10
AC
characteristics 13
timing diagram 13
address spaces, basic 2
architecture 2
expanded register file 25
B
basic address spaces 2
block diagram, ZLP32300 functional 4
C
capacitance 11
characteristics
AC 13
DC 11
clock 50
comparator inputs/outputs 22
configuration
port 0 16
port 1 17
port 2 18
port 3 19
port 3 counter/timer 21
counter/timer
16-bit circuits 43
8-bit circuits 39
brown-out voltage/standby 61
clock 50
demodulation mode count capture flow-
chart 41
demodulation mode flowchart 42
diagram 3
EPROM selectable options 61
glitch filter circuitry 37
halt instruction 51
input circuit 37
interrupt block diagram 48
interrupt types, sources and vectors 49
oscillator configuration 50
output circuit 46
ping-pong mode 45
port configuration register 52
resets and WDT 61
SCLK circuit 55
stop instruction 51
stop mode recovery register 54
stop mode recovery register 2 58
stop mode recovery source 56
T16 demodulation mode 44
T16 transmit mode 43
T16_OUT in modulo-N mode 44
T16_OUT in single-pass mode 44
T8 demodulation mode 40
T8 transmit mode 37
T8_OUT in modulo-N mode 40
T8_OUT in single-pass mode 40
transmit mode flowchart 38
voltage detection and flags 62
watch-dog timer mode register 59
watch-dog timer time select 60
CTR(D)01h T8 and T16 Common Functions 32
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Index
88
D
DC characteristics 11
demodulation mode
count capture flowchart 41
flowchart 42
T16 44
T8 40
description
functional 22
general 2
pin 4
E
EPROM
selectable options 61
expanded register file 23
expanded register file architecture 25
expanded register file control registers 68
flag 77
interrupt mask register 76
interrupt priority register 75
interrupt request register 76
port 0 and 1 mode register 74
port 2 configuration register 72
port 3 mode register 73
port configuration register 72
register pointer 77
stack pointer high register 78
stack pointer low register 78
stop-mode recovery register 70
stop-mode recovery register 2 71
T16 control register 66
T8 and T16 common control functions reg-
ister 64
T8/T16 control register 67
TC8 control register 62
watch-dog timer register 72
F
features
standby modes 1
ZLP32300 1
functional description
counter/timer functional blocks 37
CTR(D)01h register 32
CTR0(D)00h register 30
CTR2(D)02h register 34
CTR3(D)03h register 36
expanded register file 23
expanded register file architecture 25
HI16(D)09h register 29
HI8(D)0Bh register 29
L08(D)0Ah register 29
L0I6(D)08h register 29
program memory map 23
RAM 22
register description 62
register file 27
register pointer 26
register pointer detail 28
SMR2(F)0D1h register 37
stack 28
TC16H(D)07h register 29
TC16L(D)06h register 30
TC8H(D)05h register 30
TC8L(D)04h register 30
G
glitch filter circuitry 37
H
halt instruction, counter/timer 51
I
input circuit 37
interrupt block diagram, counter/timer 48
interrupt types, sources and vectors 49
L
low-voltage detection register 62
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Index
89
M
memory, program 22
modulo-N mode
T16_OUT 44
T8_OUT 40
O
oscillator configuration 50
output circuit, counter/timer 46
P
package information
20-pin DIP package diagram 79
20-pin SSOP package diagram 80
28-pin DIP package diagram 82
28-pin SOIC package diagram 81
28-pin SSOP package diagram 83
40-pin DIP package diagram 83
48-pin SSOP package diagram 84
pin configuration
20-pin DIP/SOIC/SSOP 5
28-pin DIP/SOIC/SSOP 6
40- and 48-pin 8
40-pin DIP 7
48-pin SSOP 8
pin functions
port 0 (P07 - P00) 15
port 0 (P17 - P10) 16
port 0 configuration 16
port 1 configuration 17
port 2 (P27 - P20) 17
port 2 (P37 - P30) 18
port 2 configuration 18
port 3 configuration 19
port 3 counter/timer configuration 21
reset) 22
XTAL1 (time-based input 15
XTAL2 (time-based output) 15
ping-pong mode 45
port 0 configuration 16
port 0 pin function 15
port 1 configuration 17
port 1 pin function 16
port 2 configuration 18
port 2 pin function 17
port 3 configuration 19
port 3 pin function 18
port 3counter/timer configuration 21
port configuration register 52
power connections 3
power supply 5
precharacterization product 87
program memory 22
map 23
R
ratings, absolute maximum 10
register 58
CTR(D)01h 32
CTR0(D)00h 30
CTR2(D)02h 34
CTR3(D)03h 36
flag 77
HI16(D)09h 29
HI8(D)0Bh 29
interrupt priority 75
interrupt request 76
interruptmask 76
L016(D)08h 29
L08(D)0Ah 29
LVD(D)0Ch 62
pointer 77
port 0 and 1 74
port 2 configuration 72
port 3 mode 73
port configuration 52, 72
SMR2(F)0Dh 37
stack pointer high 78
stack pointer low 78
stop mode recovery 54
stop mode recovery 2 58, 71
stop-mode recovery 70
T16 control 66
T8 and T16 common control functions 64
CrimzonTM ZLR32300
Product Specification
PS022606-0805 Index
90
T8/T16 control 67
TC16H(D)07h 29
TC16L(D)06h 30
TC8 control 62
TC8H(D)05h 30
TC8L(D)04h 30
voltage detection 68
watch-dog timer 72
register description
counter/timer2 ls-byte hold 30
counter/timer2 ms-byte hold 29
counter/timer8 control 30
counter/timer8 high hold 30
counter/timer8 low hold 30
CTR2 counter/timer 16 Control 34
CTR3 T8/T16 control 36
stop mode recovery2 37
T16_capture_LO 29
T8 and T16 common functions 32
T8_capture_HI 29
T8_capture_LO 29
register file 27
expanded 23
register pointer 26
detail 28
reset pin function 22
resets and WDT 61
S
SCLK circuit 55
single-pass mode
T16_OUT 44
T8_OUT 40
stack 28
standard test conditions 10
standby modes 1
stop instruction, counter/timer 51
stop mode recovery
2 register 58
source 56
stop mode recovery 2 58
stop mode recovery register 54
T
T16 transmit mode 43
T16_Capture_HI 29
T8 transmit mode 37
T8_Capture_HI 29
test conditions, standard 10
test load diagram 10
timing diagram, AC 13
transmit mode flowchart 38
V
VCC 5
voltage
brown-out/standby 61
detection and flags 62
voltage detection register 68
W
watch-dog timer
mode registerwatch-dog timer mode
register 59
time select 60
X
XTAL1 5
XTAL1 pin function 15
XTAL2 5
XTAL2 pin function 15
Z
ZLP32300 family members 1
