s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 243

• 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 0 CIRCUIT DIAGRAM
NOTES:
1.
2.
P0.0/SCK/K0
P0.3/BUZ/K3
P0.1/SO/K1
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.
P0.2/SI/K2
PUR0
V
Figure 10-1. Port 0 Circuit Diagram
DD
CMOS Push-Pull,
PM0.0
PM0.1
PM0.2
PM0.3
Open-Drain
N-Channel
BUZ
PNE0.0
SO
SCK
SCK
SI
PNE0.1
PNE0.2
Output
Latch
MUX
PNE0.3
PM0.3
PM0.2
PM0.1
PM0.0
1, 4
1, 4
I/O PORTS
10-5