s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 246

• 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.

I/O PORTS
PORT 3 CIRCUIT DIAGRAM
10-8
P3.0/TCLO0/CL
NOTE:
P3.1/TCLO1
P3.2/TCL0
P3.3/TCL1
PUR3
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 10-4. Port 3 Circuit Diagram
V
DD
CMOS Push-Pull,
Open-Drain
N-Channel
S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
TCLO0/CL
TCLO1
PNE2.0
TCL0
TCL1
PNE2.1
PNE2.2
Output
Latch
MUX
PNE2.3
PM3.3
PM3.2
PM3.1
PM3.0
1, 4, 8
1, 4, 8