ZiLOG Z8 Series

Z8
®
CPU
User Manual
UM001604-0108 Input/Output Ports
70
Figure 59. Port Configuration of Comparator Inputs on P31, P32, and P33
P31 (AN1)
R247 = P3M
+
-
IRQ2, T
IN
, P31 Data Latch
P30
+
-
1 = Analog
0 = Digital
D1
R ≈ 500 K Ω
Autolatch
Port 3
(I/O or Control)
P30 Data
Latch IRQ3
Z8
P34
P35
P37
P36
P30
P31
P32
P33
IRQ0, P32 Data Latch
IRQ1, P33 Data Latch
P32 (AN2)
P33 (REF)
From Stop-Mode
Recovery Source
DIG.
AN.