Z84C90 Datasheet, PDF (29/31 Pages) Zilog, Inc. – KIO Serial/Parallel Counter Timer

Z84C90
KIO Serial/Parallel Counter Timer
24
Clock
INT
M1
IORQ
D₀–D₇
IE1
IE0
T1
T2
16
18
Two
Two
36
7
13
19
Figure 14. Interrupt Acknowledge Cycle
Clock
16
M1
RD
D₀–D₇
17
73
73
12
IE1
20
21
IE0
Figure 15. Op Code Fetch Cycle
T3
T4
17
11
14
22
71
72
PS011802-0902