s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 245

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
PORT 2 CIRCUIT DIAGRAM
NOTE:
P2.1/LCDFR
P2.2/CLO1
P2.3/CLO2
P2.0/M
PUR2
When a port pin serves as an output, its pull-up resistor is automatically disabled, even though
the port's pull-up resistor is enabled by bit settings in the pull-up resistor mode register (PUMOD).
Figure 10-3. Port 2 Circuit Diagram
V
DD
CMOS Push-Pull,
Open-Drain
N-Channel
CLO2
CLO1
LCDFR
PNE2.4
M
PNE2.5
PNE2.6
Output
Latch
MUX
PNE2.7
PM2.3
PM2.2
PM2.1
PM2.0
1, 4, 8
1, 4, 8
I/O PORTS
10-7