MC68020 查看數據表（PDF） - Freescale Semiconductor

零件编号

产品描述 (功能)

生产厂家

MC68020

MICROPROCESSORS USER’S MANUAL

Freescale Semiconductor 

9/29/95

FrSeEeCsTcIOaNle1:SOeVmEiRcVoIEnWductor, Inc. UM Rev.1.0

Paragraph

Number

TABLE OF CONTENTS (Continued)

Title

Page

Number

7.1

7.1.1

7.1.2

7.1.3

7.1.4

7.1.4.1

7.1.4.2

7.1.4.3

7.2

7.2.1

7.2.1.1

7.2.1.2

7.2.2

7.2.2.1

7.2.2.1.1

7.2.2.1.2

7.2.2.2

7.2.2.2.1

7.2.2.2.2

7.2.2.3

7.2.2.3.1

7.2.2.3.2

7.2.2.4

7.2.2.4.1

7.2.2.4.2

7.2.3

7.2.3.1

7.2.3.2

7.2.3.2.1

7.2.3.2.2

7.2.3.2.3

7.2.3.2.4

7.2.3.3

7.2.3.3.1

7.2.3.3.2

7.2.3.4

7.2.3.4.1

7.2.3.4.2

7.3

Section 7

Coprocessor Interface Description

Introduction .............................................................................................7-1

Interface Features ...............................................................................7-2

Concurrent Operation Support ............................................................7-2

Coprocessor Instruction Format .......................................................... 7-3

Coprocessor System Interface ............................................................7-4

Coprocessor Classification ..............................................................7-4

Processor-Coprocessor Interface .................................................... 7-5

Coprocessor Interface Register Selection .......................................7-6

Coprocessor Instruction Types ...............................................................7-7

Coprocessor General Instructions .......................................................7-8

Format .............................................................................................7-8

Protocol ................................ ............................................................ 7-9

Coprocessor Conditional Instructions.................................................. 7-10

Branch on Coprocessor Condition Instruction .................................7-12

Format ..........................................................................................7-12

Protocol ........................................................................................7-12

Set on Coprocessor Condition Instruction .......................................7-13

Format ..........................................................................................7-13

Protocol ........................................................................................7-14

Test Coprocessor Condition, Decrement, and Branch Instruction ... 7-14

Format ..........................................................................................7-14

Protocol ........................................................................................7-15

Trap on Coprocessor Condition Instruction ..................................... 7-15

Format ..........................................................................................7-15

Protocol ........................................................................................7-16

Coprocessor Context Save and Restore Instructions ......................... 7-16

Coprocessor Internal State Frames .................................................7-17

Coprocessor Format Words.............................................................7-18

Empty/Reset Format Word ...........................................................7-18

Not-Ready Format Word ..............................................................7-19

Invalid Format Word .....................................................................7-19

Valid Format Word .......................................................................7-20

Coprocessor Context Save Instruction ............................................ 7-20

Format ..........................................................................................7-20

Protocol ........................................................................................7-21

Coprocessor Context Restore Instruction ........................................7-22

Format ..........................................................................................7-22

Protocol ........................................................................................7-23

Coprocessor Interface Register Set ........................................................7-24

x

M68020 USER’S MANUAL

MOTOROLA

For More Information On This Product,

Go to: www.freescale.com

Share Link: