Z84C90 Datasheet, PDF (28/31 Pages) Zilog, Inc. – KIO Serial/Parallel Counter Timer

Z84C90
KIO Serial/Parallel Counter Timer
23
Clock
IORQ
RD
Port C
Input
Port C
Output
RDY
STB
Mode 0
Mode 1
Mode 2
34
35
24
25
23
26
27
28
29
8
30
31
Mode 3
INT
32
33
Figure 13. Port I/O Read/Write Timing
PS011802-0902