Z84C90_12 Datasheet, PDF (39/56 Pages) Zilog, Inc. – KIO Serial/Parallel Counter/Timer

Z84C90 KIO Serial/Parallel Counter/Timer
Product Specification
32
Figure 35 shows the timing of the Z84C90 KIO Peripheral’s interrupts.
T1
Clock
INT
16
M1
IORQ
D0–D7
IE1
18
IE0
*Wait state.
T2
Twa*
Twa*
36
7
13
19
T3
T4
17
11
14
Figure 35. Interrupt Acknowledge Cycle
Figure 36 shows the timing of the Z84C90 KIO Peripheral’s counter/timer.
Clock
CLK/TRG
40
41
42
Counter
37
44
43
CLK/TRG
Timer
38
45
46
ZC/TO
39
36
INT
Figure 36. Counter/Timer Timing
PS011804-0612
DC Characteristics