z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 289

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z80189

Manufacturer Part Number

z80189

Description

Z80180, Z8s180, Z8l180 Mpu Operation

Manufacturer

ZiLOG Semiconductor

Datasheet

1.Z80189.pdf (326 pages)

Current page: 289 of 326
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Table 51.

Instruction

PUSH IX

PUSH IY

RET

RET f

(If condition

is false)

RET f

(If condition

is true)

RETI (R0, R1)

RETN

Bus and Control Signal Condition in Each Machine Cycle (Continued)

Machine

Cycle

MC1

MC2

MC3~M

C4

MC5

MC6

MC1

MC2

MC3

MC1

MC2~M

C3

MC1

MC2

MC3

MC4

MC1

MC2

MC3

MC4

States

T1T2T3

T1T2T3

TiTi

T1T2T3

T1T2T3

T1T2T3

T1T2T3

T1T2T3

T1T2T3

TiTi

T1T2T3

Ti

T1T2T3

T1T2T3

T1T2T3

T1T2T3

T1T2T3

T1T2T3

Address

1st Op Code

Address

2nd Op Code

Address

*

SP-1

SP-2

1st Op Code

Address

SP

SP+1

1st Op Code

Address

*

1st Op Code

Address

*

SP

SP+1

1st Op Code

Address

2nd Op Code

Address

SP

SP+1

Data

1st Op

Code

2nd Op

Code

Z

IXH

IYH

IXL

IYL

1st Op

Code

DATA

DATA

1st Op

Code

Z

1st Op

Code

Z

DATA

DATA

1st Op

Code

2nd Op

Code

DATA

DATA

RD WR MREQ

0

0

1

1

1

0

0

0

0

1

0

1

0

0

0

0

0

0

1

1

1

0

0

1

1

1

1

1

1

1

1

1

1

1

1

1

Family MPU User Manual

0

0

1

0

0

0

0

0

0

1

0

1

0

0

0

0

0

0

IORQ M1 HALT ST

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

UM005003-0703

0

0

1

1

1

0

1

1

0

1

0

1

1

1

0

0

1

1

Z8018x

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

1

0

1

1

1

1

0

1

1

0

1

0

1

1

1

0

1

1

1

273

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