Samsung KS57C2308 Manual page 218

I/O PORTS
PORT 2 CIRCUIT DIAGRAM
PUMOD.2
P2.0/TCLO0
P2.1
P2.2/CLO
P2.3/BUZ
NOTE:
10-8
V
DD
When a port pin acts as an output, its pull-up resistor is automatically
disabled, even though the port's pull-up resistor is enabled by bit settings
to the pull-up resistor mode register (PUMOD).
Figure 10-3. Port 2 Circuit Diagram
KS57C2308/P2308/C2316/P2316
TCLO0
CLO
BUZ
PM2 8
Output
1, 4
Latch
M
1, 4
U
X