Z8S180 Zilog., Z8S180 Datasheet - Page 271

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Z8S180

Manufacturer Part Number
Z8S180
Description
ENHANCED Z180 MICROPROCESSOR
Manufacturer
Zilog.
Datasheet

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Table 51. Bus and Control Signal Condition in Each Machine Cycle (Continued)
Instruction
CPI
CPD
CPIR
CPDR
(If BC
Ar = (HL)
CPIR
CPDR
(If BC
Ar=(HL)
CPL
DAA
DI*1
* 1 Interrupt request is not sampled.
R
R
=0 or
M
0 and
M
)
)
Machine
Cycle
MC1
MC2
MC3
MC4
~MC6
MC1
MC2
MC3
MC4~M
C8
MC1
MC2
MC3
MC4~M
C6
MC1
MC1
MC2
MC1
States
T1T2T3 1st Op Code
T1T2T3 2nd Op Code
T1T2T3 HL
TiTiTi
T1T2T3 1st Op Code
T1T2T3 2nd Op Code
T1T2T3 HL
TiTiTi
TiTi
T1T2T3 1st Op Code
T1T2T3 2nd Op Code
T1T2T3 HL
TiTiTi
T1T2T3 1st Op Code
T1T2T3 1st Op Code
Ti
T1T2T3 1st Op Code
Address
Address
Address
*
Address
Address
*
Address
Address
*
Address
Address
*
Address
Data
1st Op
Code
2nd Op
Code
DATA
Z
1st Op
Code
2nd Op
Code
DATA
Z
1st Op
Code
2nd Op
Code
DATA
Z
1st Op
Code
1st Op
Code
Z
1st Op
Code
RD WR MREQ
0
0
0
1
0
0
0
1
0
0
0
1
0
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
1
0
MPU User Manual
IORQ M1 HALT ST
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
UM005001-ZMP0400
Z8018x Family
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
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
0
0
1
0
255

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