Z80182 Zilog., Z80182 Datasheet - Page 83

• Manufacturer Part Number: Z80182
• Description: Z8018x Family MPU
• Manufacturer: Zilog.

TIMING DIAGRAMS
Z180 MPU Timing
DS971820600
Zilog
Address
/RESET
/MREQ
/IORQ
/WAIT
Data
OUT
/WR
Data
/RD
/M1
ST
ø
IN
68
4
2
62
T1
1
6
19
10
7
63
Opcode Fetch Cycle
T2
67
(Opcode Fetch Cycle, Memory Read/Write Cycle
8
9
17
5
3
20
19
TW
P R E L I M I N A R Y
14
Figure 90. CPU Timing
I/O Read/Write Cycle)
15
18
T3
12
20
T1
13
9
23
16
11
11
T2
I/O Write Cycle †
I/O Read Cycle †
7
28
22
24
TW
26 and 26a
15
67
62
25
13
29
T3
63
Z
T1
68
ILOG
16
11
11
21
27
I
NTELLIGENT
Z80182/Z8L182
P
ERIPHERAL
3-83