Samsung KS57C2308 Manual page 219

KS57C2308/P2308/C2316/P2316
PORT 3 AND 6 CIRCUIT DIAGRAM
PUMOD.x
Px.0
Px.1
Px.2
Px.3
NOTE: 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).
V
DD
Figure 10-4. Port 3 and 6 Circuit Diagram
I/O PORTS
x = port number (3, 6)
PMx.3
PMx.2
PMx.1
PMx.0
Output
1, 4, 8
Latch
M
U
1, 4, 8
X
10-9