Z86L88 Datasheet, PDF (36/66 Pages) Zilog, Inc. – INFRARED REMOTE CONTROLLERS

Z86L88/81/86/87/89/73
IR/Low-Voltage Microcontroller
Counter/Timer Functional Blocks
CTR1 D5,D4
P31
Glitch
MUX
Filter
P20
Edge
Detector
Pos Edge
Neg Edge
CTR1 D6
CTR1 D3,D2
Figure 24. Glitch Filter Circuitry
Z8 Data Bus
Pos Edge
Neg Edge
HI8
CTR0 D4, D3
SCLK
Clock
Select
Clock
8-Bit
Counter T8
CTR0 D2
LO8
Z8 Data Bus
TC8H
TC8L
Figure 25. 8-Bit Counter/Timer Circuits
IRQ4
CTR0 D1
T8_OUT
36
PRELIMINARY
DS96LV00800