Z84C90 ZILOG [Zilog, Inc.], Z84C90 Datasheet - Page 28
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Z84C90
Manufacturer Part Number
Z84C90
Description
KIO Serial/Parallel Counter Timer
Manufacturer
ZILOG [Zilog, Inc.]
Datasheet
1.Z84C90.pdf
(31 pages)
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PS011802-0902
Mode 0
Mode 1
Mode 2
Mode 3
Output
Port C
Port C
Clock
IORQ
Input
RDY
STB
INT
RD
Figure 13. Port I/O Read/Write Timing
34
30
35
26
32
28
KIO Serial/Parallel Counter Timer
29
23
31
8
33
27
24
Z84C90
25
23