20PCM-5896User ManualJ8LCD driving voltage select (J8)You can select the LCD connector CN9 (pin 5 and pin 6) drivingvoltage by setting J8. The configurations are as follows:LCD driving voltage select (J8)5V3.3V **default123123J7LCD clock signal select (J7)You can select the LCD control signal by setting J7. The followingcharts show the available option.LCD clock signal select (J7)ASHF CLKSHF CLK **default123123