
55 Appendix B
• J8, J9: USB Single Upright Right-Angle Connector
• J12: Dual USB pin header for front USB interface
• J13: 1x3 2.54mm Pin Header for AT/ATX Selection
• JP1: 1x4 2.54mm Pin Header For Speaker Function
• JP3: 2x4 2.0mm Pin Header for Digital IO
• JP4: 1x3 2.0mm Pin Header for On Board RTC
Pin Description Pin Description
1 VCC 2 USBP0 minus
3 USBP0 plus 4 GND
Pin Description Pin Description
1 USBV0 6 USBV0
2 USBD0- 7 USBD1-
3 USBD0+ 8 USBD1+
4 GND 9 GND
5N/C10GND
Pin Description
* 1, 2 Short ATX Mode
2, 3 Short AT Mode
Pin Description Pin Description
1 Speaker 2 GND
3GND4 +5V
Pin Description Pin Description
1 GP27_D_IN1 2 GP23_D_OUT1
3 GP26_D_IN2 4 GP22_D_OUT2
5 GP25_D_IN3 6 GP21_D_OUT3
7 GP24_D_IN4 8 GP20_D_OUT4
Pin Description
* 1, 2 Short Operation Mode
2, 3 Short Clear CMOS
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