Motorola M68000 Manuals

Manuals and User Guides for Motorola M68000. We have 1 Motorola M68000 manual available for free PDF download: User Manual

Motorola M68000 User Manual

Motorola M68000 User Manual (189 pages)

8-/16-/32-Bit Microprocessors

Brand: Motorola | Category: Computer Hardware | Size: 1.64 MB

Table of Contents

Table of Contents
2
List of Tables
10
Section 1 Overview
12
Mc68Hc000
14
Mc68Hc001
14
Mc68Ec000
14
Introduction

15
- Programmer's Model
  15
- User's Programmer's Model
  15
- Supervisor Programmer's Model
  16
- Data Types and Addressing Modes
  17
- Status Register
  17
- Data Organization in Registers
  19
- Data Registers
  19
- Address Registers
  20
- Data Organization in Memory
  20
- Instruction Set Summary
  22
Signal Description

29
- Mc68000
  29
- Address Bus
  30
  - Mc68008
    30
- Asynchronous Bus Control
  32
- Data Bus
  32
- Bus Arbitration Control
  33
- Interrupt Control
  34
- System Control
  35
- M6800 Peripheral Control
  36
- Processor Function Codes
  36
- Clock
  37
- Power Supply
  37
- Signal Summary
  38
8-Bit Bus Operations

39
- Data Transfer Operations
  39
- Write Cycle
  41
- Read-Modify-Write Cycle
  43
- Other Bus Operations
  46
16-Bit Bus Operations

47
- Data Transfer Operations
  47
- Write Cycle
  50
- Read-Modify-Write Cycle
  53
- CPU Space Cycle
  55
- Bus Arbitration
  57
- Requesting the Bus
  60
- Acknowledgment of Mastership (3-Wire Arbitration Only)
  61
- Bus Arbitration Control
  61
- Receiving the Bus Grant
  61
- Bus Error and Halt Operation
  69
- Bus Error Operation
  70
- Retrying the Bus Cycle
  72
- Halt Operation
  73
- Double Bus Fault
  74
- Reset Operation
  75
- The Relationship of DTACK, BERR, and HALT
  76
- Asynchronous Operation
  78
- Synchronous Operation
  81
Exception Processing

86
- Privilege Modes
  86
- Privilege Mode Changes
  87
- Supervisor Mode
  87
- User Mode
  87
- Reference Classification
  88
- Exception Processing
  89
- Exception Vectors
  89
- Kinds of Exceptions
  90
Exception Processing

93
Electrical and Thermal Characteristics

141
Ordering Information and Mechanical Data

170
- Pin Assignments
  170
- Package Dimensions
  176
Appendix A

182
MC68010 Loop Mode Operation

182

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