z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 295

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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: 295 of 326
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INTERRUPTS

Instruction

NMI

INT0 Mode 0

(RST Inserted)

INT0 Mode 0

(Call

Inserted)

INT0 Mode 1

Machine

Cycle

MC1

MC2

~MC3

MC4

MC5

MC1

MC2

~MC3

MC4

MC5

MC1

MC2

MC3

MC4

MC5

MC6

MC1

MC2

MC3

Table 52.

States

T1T2T3

T1T1

T1T2T3

T1T2T3

T1T2TW

TWT3

T1T1

T1T2T3

T1T2T3

T1T2Tw

TWT3

T1T2T3

T1T2T3

Ti

T1T2T3

T1T2T3

T1T2TW

TWT3

T1T2T3

T1T2T3

Interrupts

Address

Next Op

Code

Address (PC)

*

SP-1

SP-2

Next Op

Code

Address

*

SP-1

SP-2

Next Op

Code

Address (PC)

PC

PC+1

*

SP-1

SP-2

Next

Op Code

Address (PC)

SP-1

SP-2

Data

Z

PCH

PCL

1st (PC)

Op Code

Z

PCH

PCL

1st

Op Code

n

m

Z

PC+2(H)

PC+2(L)

PCH

PCL

RD WR MREQ IORQ M1 HALT ST

0

1

1

1

1

1

1

1

1

0

0

1

1

1

1

1

1

1

1

0

0

1

1

0

0

1

1

1

1

0

0

1

0

0

Family MPU User Manual

0

1

0

0

1

1

0

0

1

0

0

1

0

0

1

0

0

1

1

1

1

0

1

1

1

0

1

1

1

1

1

0

1

1

UM005003-0703

0

1

1

1

0

1

1

1

0

1

1

1

1

1

0

1

1

Z8018x

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

0

1

1

1

0

1

1

1

0

1

1

1

1

1

0

1

1

279

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