S3F80JB

RESET

 

 

RECOMMENDATION FOR UNUSUED PINS

To reduce overall power consumption, please configure unused pins according to the guideline description Table 8-6.

Table 8-6. Guideline for Unused Pins to Reduced Power Consumption

Pin Name

Recommend

 

Example

Port 0

Set Input mode

P0CONH # 00H or 0FFH

 

Enable Pull-up Resister

P0CONL # 00H or 0FFH

 

No Connection for Pins

P0PUR

# 0FFH

Port 1

Set Open-Drain Output mode

P1CONH # 55H

 

Set P1 Data Register to #00H.

P1CONL # 55H

 

Disable Pull-up Resister

P1

# 00H

 

No Connection for Pins

 

 

Port 2

Set Push-pull Output mode

P2CONH # 0AAH

 

Set P2 Data Register to #00H.

P2CONL # 0AAH

 

Disable Pull-up resister

P2

# 00H

 

No Connection for Pins

P2PUR

# 00H

P3.0–3.1

Set Push-pull Output mode

P3CON # 11010010B

 

Set P3 Data Register to #00H.

P3

# 00H

 

No Connection for Pins

 

 

P3.2– P3.3

No connection

P3.4–P3.5

Set Push-pull Output mode

P345CON # A0H

 

Set P3.4 and P3.5 Data Register to #00H.

P3

# 00H

 

No Connection for Pins

 

 

Port 4

Set Push-pull Output mode

P4CONH # 0AAH

 

Set P4 Data Register to #00H.

P4CONL # 0AAH

 

No Connection for Pins

 

P4

# 00H

 

 

TEST

Connect to VSS.

 

8-19

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Image 237
Samsung S3F80JB manual Recommendation for Unusued Pins, ← # 0FFH, P2PUR, Connect to VSS