s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 247

• 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 4 CIRCUIT DIAGRAM
P4.0/CIN0
P4.1/CIN1
P4.1/CIN2
NOTES:
1.
2.
PUR4
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).
If this port is set to output ports, the input signal is not transmitted to the MUX.
V
Figure 10-5. Port 4 Circuit Diagram
DD
CMOS Push-Pull,
PM4.0
PM4.1
PM4.2
Open-Drain
N-Channel
PNE2.4
Digital Input
Digital Input
Digital Input
Analog Input
Analog Input
Analog Input
PNE2.5
PNE2.6
Output
Latch
MUX
PM4.2
PM4.1
PM4.0
1, 4
1, 4
I/O PORTS
10-9