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Only for training and service purposes
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3. BB Circuit Technical brief
3.15 5PIN Interface connector
[Table 3.15-1] PIN assign
Pin Function Description
1 VBUS_USB Charger voltage, USB VBUS
2 MUIC_DM Headset left sound, UART RX data, USB_DM data
3 MUIC_DP Headset Right sound, UART TX data, USB_DP data
4 MUIC_ID Accessory type detect, Headset microphone signal
5 GND Power GND
6~11 FM_ANT FM radio antenna /// USB/ Remote control interrupt
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