z80189 ZiLOG Semiconductor, z80189 Datasheet - Page 272
z80189
Manufacturer Part Number
z80189
Description
Z80180, Z8s180, Z8l180 Mpu Operation
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z80189.pdf
(326 pages)
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Table 51.
UM005003-0703
Instruction
DJNZ j
(If Br ¹ 0)
DJNZ j
(If Br=0)
EI*3
EX DE, HL
EXX
EX AF, AF’
EX (SP), HL
*2 DMA,REFRESH, or BUS RELEASE cannot be executed after this state. (Request is ignored)
*3 Interrupt request is not sampled.
Z8018x
Family MPU User Manual
Bus and Control Signal Condition in Each Machine Cycle (Continued)
Machine
Cycle
MC1
MC2
MC3
MC4~M
C5
MC1
MC2
MC3
MC1
MC1
MC1
MC2
MC1
MC2
MC3
MC4
MC5
MC6
States
T1T2T3
Ti*2
T1T2T3
TiTi
T1T2T3
Ti*1
T1T2T3
T1T2T3
T1T2T3
T1T2T3
Ti
T1T2T3
T1T2T3
T1T2T3
Ti
T1T2T3
T1T2T3
Address
1st Op Code
Address
*
1st operand
Address
*
1st Op Code
Address
*
1st operand
Address
1st Op Code
Address
1st Op Code
Address
1st Op Code
Address
*
1st Op Code
Address
SP
SP+1
*
SP+1
SP
Data
1st Op
Code
Z
j-2
Z
1st Op
Code
Z
j-2
1st Op
Code
1st Op
Code
1st
Z
1st Op
Code
DATA
DATA
Z
H
L
Op Code
RD WR MREQ
0
1
0
1
0
1
0
0
0
0
1
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
0
1
0
1
0
0
0
0
1
0
0
0
1
0
0
IORQ M1 HALT ST
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
0
0
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
0
0
0
1
0
1
1
1
1
1
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