1-28 (No.RA017)2.6.2 Module (BT/GPS) unit (XC2-0031-80, XC2-0040-10)2.6.3 Sub (Display) unit (XC3-0020-20, XC3-0070-20)14 SB - Refer to “D-sub 25-pin connectorspecification”.15 AUXO2 O16 AUXO1 O17 AFO O18 GND -19 DEO O20 AUXIO5 I/O21 AUXIO4 I/O22 AUXIO3 I/O23 AUXIO2 I/O24 AUXIO1 I/O25 ME -Pin No. Name I/O FunctionCN1(to Main unit A/2 CN735)1 54M I 5.4V input2 54M I 5.4V input3 GND - Ground4 GND - Ground5 BT_SW I Enable signal for 33BT and18BT6 G_TXD2 I Serial data intput7 G_RXD2 O Serial data output8 CTS2 O Serial data output9 RTS2 I Serial data input10 BT_AUD_DO I Audio signal input11 BT_AUD_DI O Audio signal output12 BCLK I Audio serial data bus bit clockinput13 WCLK I Audio serial data bus wordclock input14 BT_SHUTDOWN I Shutdown signal input15 GPS_PA_EN I GPS receiver part switchingsignal input16 GPS_ANT_SW I Enable signal for 33GPS17 GND - Ground18 GND - Ground19 GPS_ALM O Antenna open/short detection20 GPS_PWR O Antenna power supply detec-tionPin No. Name I/O FunctionCN2 (to Main unit A/2 CN900)1 SP+ I Speaker output2 SPG - Speaker ground3 GND - GroundPin No. Name I/O Function4 SB I Switched power supplyCN4 (LCD)1 VSSA - Ground2 VSSA - Ground3 VSSA - Ground4 VCC O 3V output5 VCC O 3V output6 VSSD - Ground7 VSSD - Ground8 VSSD - Ground9 IOVCC O 1.8V output10 IOVCC O 1.8V output11 RDX O LCD driver RD signal12 WRX O LCD driver WR signal13 DCX O LCD driver data/command switchsignal14 CSX O LCD driver chip-serect signal15 DB1 I/O LCD driver data output16 DB2 I/O LCD driver data output17 DB3 I/O LCD driver data output18 DB4 I/O LCD driver data output19 DB5 I/O LCD driver data output20 DB6 I/O LCD driver data output21 DB7 I/O LCD driver data output22 DB8 I/O LCD driver data output23 DB10 I/O LCD driver data output24 DB11 I/O LCD driver data output25 DB12 I/O LCD driver data output26 DB13 I/O LCD driver data output27 DB14 I/O LCD driver data output28 DB15 I/O LCD driver data output29 DB16 I/O LCD driver data output30 DB17 I/O LCD driver data output31 CABC - No connection32 RESX O LCD driver reset signal33 IM0 O Interface mode select34 LEDA O 54M output (LED light anode)35 LED1 I LED light cathode 136 LED2 I LED light cathode 237 LED3 I LED light cathode 338 LED4 - No connectionCN5 (Internal speaker)1 SPG - Speaker ground2 SP+ O Speaker outputCN6 (to Main unit A/2 CN749)1 GND - GroundPin No. Name I/O Function
