MC68030 Datasheet, PDF (4/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

TABLE OF CONTENTS
Paragraph
Number
1.1
1.2
1.3
1.4
1.5
1.6
1.6.1
1.6.2
1.7
1.8
1.9
2.1
2.2
2.2.1
2.2.2
2.2.3
2.3
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.11
2.4.12
2.4.13
2.4.14
2.4.15
2.4.16
2.4.17
2.4.18
2.5
Title
Page
Number
Section 1
Introduction
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
MC68030 Extensions to the M68000 Family . . . . . . . . . . . . . . . . . . . 1-4
Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Data Types and Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Instruction Set Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Virtual Memory and Virtual Machine Concepts . . . . . . . . . . . . . . . . . 1-12
Virtual Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Virtual Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
The Memory Management Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Pipelined Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
The Cache Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Section 2
Data Organization and Addressing Capabilities
Instruction Operands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Organization of Data in Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Data Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Address Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Control Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Organization of Data in Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Data Register Direct Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Address Register Direct Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Address Register Indirect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Address Register Indirect with Postincrement Mode. . . . . . . . . . . . 2-10
Address Register Indirect with Predecrement Mode . . . . . . . . . . . . 2-11
Address Register Indirect with Displacement Mode . . . . . . . . . . . . 2-12
Address Register Indirect with Index (8-Bit Displacement) Mode . . 2-12
Address Register Indirect with Index (Base Displacement) Mode. . 2-13
Memory Indirect Postindexed Mode . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Memory Indirect Preindexed Mode . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Program Counter Indirect with Displacement Mode . . . . . . . . . . . . 2-16
Program Counter Indirect with Index (8-Bit Displacement) Mode . . 2-16
Program Counter Indirect with Index (Base Displacement) Mode. . 2-17
Program Counter Memory Indirect Postindexed Mode . . . . . . . . . . 2-18
Program Counter Memory Indirect Preindexed Mode . . . . . . . . . . . 2-19
Absolute Short Addressing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Absolute Long Addressing Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
Immediate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Effective Address Encoding Summary . . . . . . . . . . . . . . . . . . . . . . . . 2-22
MOTOROLA
MC68030 USER’S MANUAL
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