ZiLOG Z8018 Series User Manual page 268

Z8018x
Family MPU User Manual
254
Table 51. Bus and Control Signal Condition in Each Machine Cycle (Continued)
Machine
Instruction Cycle
MC1
MC2
CALL mn
MC3
MC4
MC5
MC6
CALL f,mn (If MC1
condition is false)
MC2
MC1
MC2
CALL f,mn
if condition is
MC3
true)
MC4
MC5
MC6
CCF MC1
UM005004-0918
States Address Data
T1T2T3 1st Op Code 1st Op
Address Code
T1T2T3 1st operand n
Address
T1T2T3 2nd operand m
Address
Ti * Z
T1T2T3 SP-1 PCH
T1T2T3 SP-2 PCL
T1T2T3 1st Op Code 1st Op
Address Code
T1T2T3 1st operand n
Address
T1T2T3 1st Op Code 1st Op
Address Code
T1T2T3 1st operand n
Address
T1T2T3 2nd operand m
Address
Ti * Z
T1T2T3 SP-1 PCH
T1T2T3 SP-2 PCL
T1T2T3 1st Op Code 1st Op
Address Code
RD WR MREQ IORQ M1 HALT ST
0 1 0 1
0 1 0 1
0 1 0 1
1 1 1 1
1 0 0 1
1 0 0 1
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1
0 1 0 1
1 1 1 1
1 0 0 1
1 0 0 1
0 1 0 1
0 1 0
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
0 1 0
1 1 1
0 1 0
1 1 1
1 1 1
1 1 1
1 1 1
1 1 1
0 1 0