Z84C90 ZILOG [Zilog, Inc.], Z84C90 Datasheet - Page 16

• Manufacturer Part Number: Z84C90
• Description: KIO Serial/Parallel Counter Timer
• Manufacturer: ZILOG [Zilog, Inc.]

PS011802-0902
Control
Data
Figure 6. PIA Block Diagram
Figure 7. CTC Block Diagram
Data Bus
6
8
CPU
Bus
I/O
Port C
Dir.
Ctrl.
Internal Bus
PC0`PC7
Reset
KIO Serial/Parallel Counter Timer
Interrupt
Counter/
Internal
Control
Logic
Logic
Timer
Logic
4
4
CLK/TRG
INT
IE1
IE0
ZC/TO
Z84C90
11