M68040 datasheet(3/442 Pages) FREESCALE

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M68040 USER’S MANUAL

MOTOROLA

PREFACE

The complete documentation package for the MC68040, MC68040V, MC68LC040,

MC68EC040, and MC68EC040V (collectively called M68040) consists of the

M68040UM/AD,

M68040 User’s Manual, and the M68000PM/AD, M68000 Family

Programmer’s Reference Manual. The M68040 User’s Manual describes the capabilities,

operation, and programming of the M68040 32-bit third-generation microprocessors. The

M68000 Family Programmer’s Reference Manual contains the complete instruction set for

the M68000 family.

The introduction of this manual includes general information concerning the MC68040 and

summarizes the differences between the M68040 member devices. Additionally, three

appendices provide detailed information on how these M68040 dirivatives operate

differently from the MC68040. For detailed information on one of these M68040

dirivatives, use the following table to determine which appendices to read in conjunction

with the rest of this manual.

Device Number

Appendices

MC68040V

Appendix A MC68LC040 and Appendix C MC68040V and MC68EC040V

MC68LC040

Appendix A MC68LC040

MC68EC040

Appendix B MC68EC040

MC68EC040V

Appendix B MC68EC040 and Appendix C MC68040V and MC68EC040V

When reading this manual, remember to disregard information concerning floating-point

in reference to the MC68040V and MC68LC040, and to disregard information concerning

floating-point and memory management in reference to the MC68EC040 and

MC68EC040V. The organization of this manual is as follows:

Section 1

Introduction

Section 2

Integer Unit

Section 3

Memory Management Unit (Except MC68EC040 and MC68EC040V)

Section 4

Instruction and Data Caches

Section 5

Signal Description

Section 6

IEEE 1149.1 Test Access Port (JTAG)

Section 7

Bus Operation

Section 8

Exception Processing

Section 9

Floating-Point Unit (MC68040)

Section 10

Instruction Timings

Section 11

MC68040 Electrical and Thermal Characteristics

Section 12

Ordering Information and Mechanical Data

Appendix A

MC68LC040

Appendix B

MC68EC040

Appendix C

MC68040V and MC68EC040V

Appendix D

M68000 Family Summary

Appendix E

Floating-Point Emulation (M68040FPSP)

Index

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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