ZiLOG Z8 CPU Microcontroller Architecture Manuals

Manuals and User Guides for ZiLOG Z8 CPU Microcontroller Architecture. We have 1 ZiLOG Z8 CPU Microcontroller Architecture manual available for free PDF download: User Manual

ZiLOG Z8 CPU User Manual

ZiLOG Z8 CPU User Manual (261 pages)

Brand: ZiLOG | Category: Microcontrollers | Size: 1 MB

Table of Contents

Table of Contents
4
Z8 ® CPU Product Overview

8
- Key Features
  8
- Product Development Support
  10
Address Space

12
- Introduction
  12
- Z8 ® CPU Standard Register File
  12
  - General-Purpose Registers
    14
  - RAM Protect
    14
  - Working Register Groups
    14
  - Error Conditions
    17
- Z8 Expanded Register File
  17
- Z8 ® Control and Peripheral Registers
  22
  - Standard Z8 Registers
    22
  - Expanded Z8 Registers
    23
- Program Memory
  26
- Z8 ® External Memory
  27
  - External Data Memory
    28
- Z8 ® Stacks
  29
Clock

31
- Frequency Control
  31
- Clock Control
  31
  - SCLK ÷ TCLK Divide-By-16 Select
    32
  - External Clock Divide-By-Two
    32
- Oscillator Control
  33
- Oscillator Operation
  34
  - Layout
    35
  - Indications of an Unreliable Design
    35
  - Circuit Board Design Rules
    35
  - Crystals and Resonators
    36
- LC Oscillator
  38
- RC Oscillator
  39
Reset

40
- Reset Pin, Internal por Operation
  40
Watchdog Timer

47
- Power-On Reset
  49
Input/Output Ports

50
- Mode Registers
  50
- Input and Output Registers
  51
- Port 0
  51
  - General I/O Mode
    52
  - Read/Write Operations
    54
  - Handshake Operation
    54
- Port 1
  55
  - General I/O Mode
    55
  - Read/Write Operations
    57
  - Handshake Operations
    58
- Port 2
  59
  - General Port I/O
    59
  - Read/Write Operations
    61
  - Handshake Operation
    62
- Port 3
  63
  - General Port I/O
    63
  - Read/Write Operations
    68
  - Special Functions
    68
- Port Handshake
  70
- I/O Port Reset Conditions
  73
  - Full Reset
    73
- Analog Comparators
  75
  - Comparator Description
    75
  - Comparator Programming
    78
  - Comparator Operation
    79
  - Interrupts
    79
  - Comparator Definitions
    79
  - Run Mode
    80
  - Halt Mode
    80
  - Stop Mode
    80
- Open-Drain Configuration
  80
- Low EMI Emission
  81
- Input Protection
  82
- Z8 ® CMOS Autolatches
  84
  - Autolatch Model
    85
  - Design Considerations
    85
Counters and Timers

87
- Prescalers and Counter/Timers
  88
- Counter/Timer Operation
  90
  - Load and Enable Count Bits
    90
  - Prescaler Operations
    91
- TOUT Modes
  93
- TIN Modes
  95
  - External Clock Input Mode
    96
  - Gated Internal Clock Mode
    97
  - Triggered Input Mode
    97
  - Retriggerable Input Mode
    98
- Cascading Counter/Timers
  98
- Reset Conditions
  99
Interrupts

102
- Interrupt Sources
  103
  - External Interrupt Sources
    104
  - Internal Interrupt Sources
    105
- Interrupt Request Register Logic and Timing
  105
- Interrupt Initialization
  106
- IRQ Software Interrupt Generation
  111
- Vectored Processing
  112
  - Vectored Interrupt Cycle Timing
    114
  - Nesting of Vectored Interrupts
    115
- Polled Processing
  115
- Reset Conditions
  116
Power-Down Modes

117
- Halt Mode Operation
  117
- Stop Mode Operation
  117
- Stop Mode Recovery Register
  119
Serial Input/Output

122
- UART Introduction
  122
- UART Bit-Rate Generation
  123
- UART Receiver Operation
  125
  - Receiver Shift Register
    125
  - Overwrites
    126
  - Framing Errors
    126
  - Parity
    126
- Transmitter Operation
  127
  - Overwrites
    128
  - Parity
    128
- UART Reset Conditions
  129
- Serial Peripheral Interface
  129
- SPI Operation
  132
- SPI Compare
  132
- SPI Clock
  132
- Receive Character Available and Overrun
  133
External Interface

138
- Introduction
  138
- Pin Descriptions
  138
- External Addressing Configuration
  139
- External Stacks
  140
- Data Memory
  141
- Bus Operation
  141
  - Address Strobe
    143
  - Data Strobe
    143
- Extended Bus Timing
  144
- Instruction Timing
  145
- Z8 ® Reset Conditions
  147
Instruction Set

148
- Processor Flags
  151
  - Carry Flag
    151
  - Zero Flag
    152
  - Sign Flag
    152
  - Overflow Flag
    152
  - Decimal Adjust Flag
    152
  - Half Carry Flag
    153
- Condition Codes
  153
- Notation and Binary Encoding
  154
  - Assembly Language Syntax
    156
- Z8 ® Instruction Summary
  157
  - Op Code Map
    163
Instruction Description

164
Index

257
Customer Support

260

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