MC68020 查看數據表（PDF） - Freescale Semiconductor

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MC68020

MICROPROCESSORS USER’S MANUAL

Freescale Semiconductor 

Freescale Semiconductor, Inc.

SEQUENCER AND CONTROL

CONTROL

STORE

INSTRUCTION PIPE

STAGE STAGE STAGE

D

C

B

CACHE

HOLDING

REGISTER

(CAHR)

CONTROL

LOGIC

INSTRUCTION

CACHE

ADDRESS

BUS

* 32-BIT

INSTRUCTION

ADDRESS

BUS

EXECUTION UNIT

INTERNAL

DATA

BUS

DATA

PADS

32-BIT

DATA

BUS

ADDRESS

PADS

PROGRAM

COUNTER

SECTION

ADDRESS

SECTION

DATA

SECTION

SIZE

MULTIPLEXER

ADDRESS

BUS

BUS CONTROLLER

WRITE PENDING

BUFFER

PREFETCH PENDING

BUFFER

MICROBUS

CONTROL LOGIC

MISALIGNMENT

MULTIPLEXER

BUS CONTROL

SIGNALS

* 24-Bit for MC68EC020

Figure 1-1. MC68020/EC020 Block Diagram

MOTOROLA

M68020 USER’S MANUAL

1-3

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