Pin Circuit Type 4 (P3.1); Pin Circuit Type 5 (P3.2 And P3.3) - Samsung S3F80JB User Manual

S3F80JB
PIN CIRCUITS (Continued)
Port 3.1 Data
Carrier On/Off (P3.7)
Open-Drain
T0CK : P3.2
T1CAP/T2CAP: P3.3
Pull-up
Enable
P3CON.5
CACON.2
Output
Disable
P3.1 Input
P3CON.5,6,7
T0CK
Figure 1-8. Pin Circuit Type 4 (P3.1)
Input
P3CON.2,6,7
M
U
X
Figure 1-9. Pin Circuit Type 5 (P3.2 and P3.3)
M
Data
U
X
M
U Noise filter
X
PRODUCT OVERVIEW
V
DD
Pull-up
Resistor
(55kΩ-Typ)
V
DD
P3.1/REM
/(T0CK)
V
SS
V
DD
Pull-up
Resistor
(55kΩ-Typ)
INPUT
1-13