Nova Natural NOVA-7820 VIA C3 Processor CPU Embedded Board User Manual

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2.5  LCD Panel Shift Clock/Panel VCC Select 
 
This jumper is for the setting of LCD panel shift clock mode and panel 
power voltage. 
 
•  JP7: LCD Panel Shift Clock 
 
JP7 Description 
1-3 Inverted 
3-5 
Normal 
 
•  JP7: Panel VCC 
 
JP7 Description 
2-4 +5V 
4-6 
+3.3V 
 
 
2.6  COM Port RI and Voltage Selection 
 
JP8 is setting COM3, 4 RI and Voltage. 
 
•  JP8: Set pin 9 of COM3 as signal RI or voltage source 
 
JP8 Description 
10-12 
COM3 RI Pin Use RI 
8-10 
COM3 RI Pin Use Voltage 
 
•  JP8: Set pin 9 of COM4 as signal RI or voltage source 
 
JP8 Description 
9-11 
COM4 RI Pin Use RI 
7-9 
COM4 RI Pin Use Voltage 
 
•  JP8: Set pin 9 of COM3 as +5V or 12V 
 
JP8 Description 
2-4 
COM3 RI Pin Use Voltage +5V 
4-6 
COM3 RI Pin Use Voltage +12V 
 
•  JP8: Set pin 9 of COM4 as +5V or 12V 
 
JP8 Description 
1-3 
COM4 RI Pin Use Voltage +5V 
3-5 
COM4 RI Pin Use Voltage +12V