Crimzon
®
ZLR32300
Z8 Low-Voltage ROM
MCU with Infrared Timers
Product Specification
PS022612-0208
®
Copyright © 2008 by Zilog
®
, Inc. All rights reserved.
www.zilog.com
Warning:
DO NOT USE IN LIFE SUPPORT
LIFE SUPPORT POLICY
ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF
THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
As used herein
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b)
support or sustain life and whose failure to perform when properly used in accordance with instructions for
use provided in the labeling can be reasonably expected to result in a significant injury to the user. A
critical component is any component in a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system or to affect its safety or
effectiveness.
Document Disclaimer
©2008 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applications, or technology described is intended to suggest possible uses and may be superseded.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.
Z I L O G A L S O D O E S N O T A S S U M E L I A B I L I T Y F O R I N T E L L E C T U A L P R O P E RT Y
INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this
document has been verified according to the general principles of electrical and mechanical engineering.
Z8, Z8 Encore!, Z8 Encore! XP, Z8 Encore! MC, Crimzon, eZ80, and ZNEO are trademarks or registered
trademarks of Zilog, Inc. All other product or service names are the property of their respective owners.
PS022612-0208
Crimzon
®
ZLR32300
Product Specification
iii
Revision History
Each instance in the Revision History table reflects a change to this document from its
previous revision. For more details, refer to the corresponding pages and appropriate links
in the table below.
Revision
Level
12
11
10
09
08
07
Page
Number
87
87
All
57
51
50, 14
Date
February
2008
January
2008
August
2007
February
2007
May
2006
December
2005
Description
Updated the
Ordering Information
section.
Updated the
Ordering Information
section.
Updated the Disclaimer section and
implemented style guide.
Updated
Low-Voltage Detection Register—
LVD(D)0CH.
Added Pin 22 to SMR Block input,
Figure 32.
Updated section clock and Input/output port.
PS022612-0208
Revision History
Crimzon
®
ZLR32300
Product Specification
iv
Table of Contents
Architectural Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Development Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
XTAL1 Crystal 1 (Time-Based Input) . . . . . . . . . . . . . . . . . . . . . . . . . . 10
XTAL2 Crystal 2 (Time-Based Output) . . . . . . . . . . . . . . . . . . . . . . . . . 10
Input/Output Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
RESET (Input, Active Low) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Expanded Register File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Register File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Counter/Timer Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Stop Mode Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Watchdog Timer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Low-Voltage Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Expanded Register File Control Registers (0D) . . . . . . . . . . . . . . . . . . . . 58
Expanded Register File Control Registers (0F) . . . . . . . . . . . . . . . . . . . . . 64
Standard Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Standard Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Part Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
76
76
78
81
87
88
89
93
PS022612-0208
Table of Contents
Crimzon
®
ZLR32300
Product Specification
1
Architectural Overview
Zilog’s Crimzon
®
ZLR32300 is an ROM-based member of the MCU family of infrared
microcontrollers. With 237 B of general-purpose RAM and 4 KB to 32 KB of ROM,
CMOS microcontrollers offer fast-executing, efficient use of memory, sophisticated
interrupts, input/output (I/O) bit manipulation capabilities, automated pulse generation/
reception, and internal key-scan pull-up transistors.
The Crimzon ZLR32300 architecture (see
Figure 1
on page 3) is based on Zilog’s 8-bit
microcontroller core with an Expanded Register File allowing access to register-mapped
peripherals, I/O circuits, and powerful counter/timer circuitry. 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 consumer, automotive, computer peripheral, and
battery-operated hand-held applications.
There are three basic address spaces available to support a wide range of configurations:
1. Program Memory
2. Register File
3. Expanded Register File
The register file is composed of 256 bytes of RAM. It includes four 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
Crimzon ZLR32300 offers a new intelligent counter/timer architecture with 8-bit and
16-bit counter/timers (see
Figure 2
on page 4). Also included are a large number of
user-selectable modes and two on-board comparators to process analog signals with
separate reference voltages.
Note:
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 1.
Table 1. Power Connections
Connection
Power
Ground
Circuit
V
CC
GND
Device
V
DD
V
SS
PS022612-0208
Architectural Overview
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