Z80180 Datasheet, PDF (289/326 Pages) Zilog, Inc. – Z8018x Family MPU

Z8018x Family
MPU User Manual
273
Table 51. Bus and Control Signal Condition in Each Machine Cycle (Continued)
Instruction
Machine
Cycle States Address
Data
PUSH IX
PUSH IY
RET
RET f
(If condition
is false)
RET f
(If condition
is true)
RETI (R0, R1)
RETN
MC1
T1T2T3 1st Op Code 1st Op
Address
Code
MC2
T1T2T3 2nd Op Code 2nd Op
Address
Code
MC3~M TiTi *
Z
C4
MC5 T1T2T3 SP-1
IXH
IYH
MC6 T1T2T3 SP-2
IXL
IYL
MC1
T1T2T3 1st Op Code 1st Op
Address
Code
MC2 T1T2T3 SP
DATA
MC3 T1T2T3 SP+1
DATA
MC1
T1T2T3 1st Op Code 1st Op
Address
Code
MC2~M TiTi *
Z
C3
MC1
T1T2T3 1st Op Code 1st Op
Address
Code
MC2
Ti
*
Z
MC3
T1T2T3 SP
DATA
MC4
T1T2T3 SP+1
DATA
MC1
T1T2T3 1st Op Code 1st Op
Address
Code
MC2
T1T2T3 2nd Op Code 2nd Op
Address
Code
MC3
T1T2T3 SP
DATA
MC4
T1T2T3 SP+1
DATA
RD WR MREQ IORQ M1 HALT ST
010
1
01
0
010
1
01
1
111
1
11
1
100
1
11
1
100
1
11
1
010
1
01
0
010
010
010
1
11
1
1
11
1
1
01
0
111
1
11
1
010
1
01
0
111
010
010
010
1
11
1
1
11
1
1
11
1
1
01
0
010
1
01
1
010
010
1
10
1
1
11
1
UM005001-ZMP0400