MC6847Y Ver la hoja de datos (PDF) - Motorola => Freescale

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MC6847Y

8-BIT MICROPROCESSING UNIT (MPU)

Motorola => Freescale 

I I Cycle

#1

*

*

I #4

FIGURE 11 – WAIT INSTRUCTION TIMING

*

I&

I #7

I #8

I*

I I #1 o

n

n+l

I n+2

Address

Bus

Instxrucxtionx

x

x

x

x

R/R

VMA

Interrupt

IRQ or

m

Data Bus

BA

x

Wait

I nst

x

x

x

Pc 0-7

PC 8-15

Note:

Midrange waveform indicates

high iMDedanCe

state.

x

I 0-7

xxx

I B-15

ACCA

ACCB

\

1[

[[

A

-TBA

New PC

Address

First Inst

of Interrupt

Routine

xxx x

New PC 8-15

Address

New PC O-7

Address

FIGURE 12..+$tikE-STATE

CONTROL TIMING

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