Oki Data CONFIDENTIAL44158801TH Rev.2 42 /2.3.2.4 Panel and LCD Module CircuitThe circuit for Panel and LCD module controls the function of the entire module including theLCD Display, the push button on the Control Panel, and LED display.Pin assignment of LCD modulePin No Name Function1 D.G. Digital Ground2 KPDATA0 Data Bus bit 03 KPDATA1 Data Bus bit 14 D.G Digital Ground5 KPDATA2 Data Bus bit 26 KPDATA3 Data Bus bit 37 D.G. Digital Ground8 KPDATA4 Data Bus bit 49 KPDATA5 Data Bus bit 510 D.G. Digital Ground11 KPDATA6 Data Bus bit 612 KPDATA7 Data Bus bit 713 D.G. Digital Ground14 VCC Digital Power Supply15 VCC Digital Power Supply16 VCC Digital Power Supply17 VCC Digital Power Supply18 D.G. Digital Ground19 D.G. Digital Ground20 LCDRS LCD Register Selection21 LED3 Led Chip Select 322 LCDRW LCD Read/Write Selection23 nLED4E LED Chip Select 424 nBRD Scan Key Read Chip Select25 nBWR Scan key Write Chip Select26 LCDE LCD Enable Signal27 nLED0 LED Chip Select 028 nLED1 LED Chip Select 129 nLED2 LED Chip Select 230 D.G. Digital Ground31 - 8V NC32 RST5V# LCD Reset Signal
