Zilog Z8PE002 - Manual (Page 40)

Z8PE002
Z8Plus OTP Microcontroller
ZiLOG
40 P R E L I M I N A R Y DS008700-Z8X0799
PORT B—PINS 3 AND 4 CONFIGURATION
Figure 37. Port B Pins 3 and 4 Diagram
PIN
PB3
PTBOUT Bit 3
PTBSFR Bit 3
PTBDIR Bit 3
PTBDIR Bit 4
PTBIN Bit 4
Edge Detect Logic
IRQ1
IRQ4
+
AN IN
REF
PTBDIR Bit 3
PTBIN Bit 3
PIN
PB4
PTBOUT Bit 4
PTBDIR Bit 4
PTBSFR Bit 4
M
U
X
-