DSX-GS80/M8052Sony CONFIDENTIALFor Authorized ServicerMAIN BOARD IC1310 PD720114GA-YEU-AT-SAK (USB CONTROLLER)Pin No. Pin Name I/O Description1 VDD25OUT O Internal regulator power supply voltage (+2.5V) output terminal2 VSSREG - Ground terminal (for internal regulator)3 to 6 LED4 to LED1 O LED drive signal output terminal Not used7 GREEN O LED (green color) control signal output terminal Not used8 AMBER O LED (amber color) control signal output terminal Not used9 VDD33 - Power supply terminal (+3.3V)10 X1 I System clock input terminal (30 MHz)11 X2 O System clock output terminal (30 MHz)12 VDD25 - Power supply terminal (+2.5V)13 BUS_B I Power supply setting terminal Fixed at “H” in this unit14 TEST I Test mode control signal input terminal Fixed at “L” in this unit15 RREF - Reference resistor connection terminal16 AVSS (R) - Ground terminal17 AVDD - Power supply terminal (+2.5V)18 AVSS - Ground terminal19 AVDD - Power supply terminal (+2.5V)20 VDD33 - Power supply terminal (+3.3V)21 DMU I/O Two-way USB data (–) bus with the system controller22 DPU I/O Two-way USB data (+) bus with the system controller23 VSS - Ground terminal24 VDD25 - Power supply terminal (+2.5V)25 DM1 I/O Two-way USB data (–) bus with the front panel block (USB (front))26 DP1 I/O Two-way USB data (+) bus with the front panel block (USB (front))27 VSS - Ground terminal28 DM2 I/O Two-way USB data (–) bus terminal Not used29 DP2 I/O Two-way USB data (+) bus terminal Not used30 VDD33 - Power supply terminal (+3.3V)31 DM3 I/O Two-way USB data (–) bus terminal Not used32 DP3 I/O Two-way USB data (+) bus terminal Not used33 VDD25 - Power supply terminal (+2.5V)34 DM4 I/O Two-way USB data (–) bus with the USB (rear) cable connector35 DP4 I/O Two-way USB data (+) bus with the USB (rear) cable connector36 VSS - Ground terminal37 SYSRSTB I Reset signal input terminal “L”: reset Fixed at “H” in this unit38 PPB4 I Power control signal input terminal Fixed at “H” in this unit39 CSB4 I Over current detection signal input terminal Not used40 PPB3 I Power control signal input terminal Fixed at “H” in this unit41 CSB3 I Over current detection signal input terminal Not used42 VSS - Ground terminal43 PPB2 I/O Power control signal input/output terminal Not used44 CSB2 I Over current detection signal input terminal Not used45 PPB1 I/O Power control signal input/output terminal Not used46 CSB1 I Over current detection signal input terminal47 VBUSM I VBUS power monitor terminal48 VDD33REG I Internal regulator power supply voltage (+3.3V) input terminal