Recommendation For Unusued Pins - Samsung S3F80P5X User Manual

S3F80P5_UM_ REV1.00

RECOMMENDATION FOR UNUSUED PINS

To reduce overall power consumption, please configure unused pins according to the guideline description Table
8-5.
Table 8-5. Guideline for Unused Pins to Reduced Power Consumption
Pin Name
Port 0
Port 1
Port 2.0
P3.0–3.1
TEST
Recommend
•
Set Input mode
•
Enable Pull-up Resister
•
No Connection for Pins
•
Set Open-Drain Output mode
•
Set P1 Data Register to #00H.
•
Disable Pull-up Resister
•
No Connection for Pins
•
Set Push-pull Output mode
•
Set P2 Data Register to #00H.
•
Disable Pull-up resister
•
No Connection for Pins
•
Set Push-pull Output mode
•
Set P3 Data Register to #00H.
•
No Connection for Pins
•
Connect to V .
SS
Example
P0CONH ← # 00H or 0FFH
•
P0CONL ← # 00H or 0FFH
•
P0PUR ← # 0FFH
•
P1CONH ← # 55H
•
P1CONL ← # 55H
•
← # 00H
•
P1
P2CONL ← # 0AAH
•
← # 00H
•
P2
← # 00H
•
P2PUR
P3CON ← # 11010010B
•
← # 00H
•
P3
–
RESET
8-19