I/O PORTS

KS57C2308/P2308/C2316/P2316

 

 

PORT 4 AND 5 CIRCUIT DIAGRAM

PUMOD.x

PNEx.3

 

 

VDD

 

 

PNEx.2

 

 

PNEx.1

 

 

x = port

number (4, 5)

PNEx.0

 

 

 

 

PM.x

Px.0

 

 

Px.1

 

 

Output

1, 4, 8

Latch

 

Px.2

 

 

Px.3

 

 

CMOS Push-Pull or

 

 

N-Channel Open-Deain

 

 

M

 

 

U

1, 4, 8

 

 

 

X

 

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).

Figure 10-5. Port 4 and 5 Circuit Diagram

10-10

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Image 220
Samsung KS57C2308 manual Port 4 and 5 Circuit Diagram