MC6800CP Просмотр технического описания (PDF) - Motorola => Freescale

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производитель

MC6800CP

8-BIT MICROPROCESSING UNIT (MPU)

Motorola => Freescale 

I

FIGURE ~ – PROGRAM FLOW FOR INTERRUPTS

.-

Software lnterruDt

Main Program’

Wait For

Interrupt

Main Program

Hardware Interrupt or

NonMaskable Interrupt (NMI)

Main Program

n:=.

:1=

n-

7“Stack MPU

Register Contents

Sp +

m—7

m—6

m—5

m—4

m—3

m—2

m—1

m

WI

FFF8

FFF9

Interrupt Memorv Assignment

FFF8 I

IRQ

I Ms

FFF9

IRQ

LS

FFFA

Swl

MS

FFFB

Swl

LS

#

e

NOTE: MS= Most Significant Address Bvte;

LS = Least S~nificant Address Byte;

MOTOROLA

@

First Instr.

Addr. Formed

BvFetching

2. Eytes From

Per, Mere,

Assign.

FFFC

FFFD

dSet Interrupt

Mask (CCR 4)

FFFE

FFFF

Load Interrupt

Vector Into

Program Counter

Q

f

A

I nterruo,t. Proaram

>

1 lstlnterruutlnstr.

1

I

1

Semiconductor Products Inc.

20

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