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Connector Definition

This page lists the detailed pin definitions of connectors 7 to 24 on the MT8788 girlfriend-machine mainboard. Connector numbers match the hardware interface map.

Connector 7: CN2 6P-2.54MM​

DC 12V input connector

PinDefinitionDescription
1GNDGround
2GNDGround
3GNDGround
4+12V12V input
5+12V12V input
6+12V12V input

Connector 8: J9 4P-1.25MM​

DC 12V wafer power connector

PinDefinitionDescription
1GNDGround
2SCLI2C bus clock
3SDAI2C bus data
4+5V5V power supply

Connector 9: J8222 15x2x2MM​

LVDS display connector

PinDefinitionDescriptionPinDefinitionDescription
1VCCPanel power16DCANGroup A clock -
2VCCPanel power17D3APGroup A data 3+
3GNDGround18D3ANGroup A data 3-
4VCCPanel power19D0BPGroup B data 0+
5GNDGround20D0BNGroup B data 0-
6GNDGround21D1BPGroup B data 1+
7D0APGroup A data 0+22D1BNGroup B data 1-
8D0ANGroup A data 0-23D2BPGroup B data 2+
9D1APGroup A data 1+24D2BNGroup B data 2-
10D1ANGroup A data 1-25GNDGround
11D2APGroup A data 2+26GNDGround
12D2ANGroup A data 2-27DCBPGroup B clock +
13GNDGround28DCBNGroup B clock -
14GNDGround29D3BPGroup B data 3+
15DCAPGroup A clock +30D3BNGroup B data 3-

Connector 10: U10 2x2x2MM​

Panel power selection connector

PinDefinitionDescription
15VPanel +5V power
2VCCPanel power interface
3VCCPanel power interface
412VPanel +12V power

Connector 11: J12 30P-0.5MM​

MIPI CSI camera connector

PinDefinitionDescriptionPinDefinitionDescription
1GNDGround16GNDGround
2D0+MIPI data 0+17MCLKMaster clock
3D0-MIPI data 0-18RSTReset
4GNDGround19GNDGround
5D1+MIPI data 1+203.3V3.3V power supply
6D1-MIPI data 1-213.3V3.3V power supply
7GNDGround223.3V3.3V power supply
8DCLK+MIPI clock +23SDAI2C bus data
9DCLK-MIPI clock -24SCLI2C bus clock
10GNDGround255V5V power supply
11D2+MIPI data 2+265V5V power supply
12D2-MIPI data 2-275V5V power supply
13GNDGround28PNDPlug-in detection
14D3+MIPI data 3+29GNDGround
15D3-MIPI data 3-30GNDGround

Connector 12: J37 6P-0.5MM​

NFC connector

PinDefinitionDescription
1+5V5V power for NFC module
2+5V5V power for NFC module
3SDAI2C bus data
4SCLI2C bus clock
5GNDGround
6GNDGround

Connector 13: J2 4P-1.25MM​

Debug UART connector

PinDefinitionDescription
1NCNo connection
2TXDDebug UART TX
3RXDDebug UART RX
4GNDGround

Connector 14: J36 6P-0.5MM​

Touch panel connector

PinDefinitionDescription
1+3.3V3.3V power for touch panel
2GNDGround
3SCLI2C bus clock
4SDAI2C bus data
5INTInterrupt signal
6RSTTouch panel reset

Connector 15: J8 8P-0.5MM​

Dual-color LED indicator connector

PinDefinitionDescription
1+3.3VLED indicator power
2+3.3VLED indicator power
3GNDGround
4GNDGround
5Red ControlRed LED control
6Red ControlRed LED control
7Green ControlGreen LED control
8Green ControlGreen LED control

Connector 16 / 17: J17 / J18 2P-2.0MM​

Dual MIC connector

PinDefinitionDescription
1MIC+Analog microphone input
2GNDGround

Connector 18: J13 5P-1.25MM​

Light sensor connector

PinDefinitionDescription
1+5V5V power for light-sensing module
2INTInterrupt signal
3SCLI2C bus clock
4SDAI2C bus data
5GNDGround

Connector 19: J8239 4P-2.0MM​

Speaker connector

PinDefinitionDescription
1OUT1ASpeaker bridge output
2OUT1BSpeaker bridge output
3OUT2ASpeaker bridge output
4OUT2BSpeaker bridge output

Connector 20: CN1 6P-2.0MM​

Backlight connector

PinDefinitionDescription
1GNDGround
2GNDGround
3LCD-PWMLCD backlight adjustment
4LCD-ENLCD backlight enable
5+12V12V power for LCD backlight
6+12V12V power for LCD backlight

Connector 21: J8229 3P-1.25MM​

IR connector

PinDefinitionDescription
1IRIR receiver input
2GNDGround
3+3.3V3.3V power for IR receiver

Connector 22: J16 4P-1.25MM​

USB 2.0 wafer connector

PinDefinitionDescription
1GNDGround
2DPUSB data +
3DMUSB data -
4+5VUSB 5V power supply

Connector 23: J8230 2P-1.25MM​

RTC battery connector

PinDefinitionDescription
1RTCRTC battery voltage input
2GNDGround

Connector 24: J8236 5P-1.25MM​

Key connector

PinDefinitionDescription
1GNDGround
2SYS-RSTSystem reset
3KPCOL0Pins 3 and 4 form the flashing-mode key
4KPROW0Pins 3 and 4 form the flashing-mode key
5PWRKEYPower key