Inter-Integrated Circuit (I2C)=SDA,SCL MCU_JTAG=TDO,TDI,TMS,TCK,R\S\T\,TEST,VCCTOOL Serial Peripheral Interface (SPI)=C\S\,MOSI,MISO,SCLK Universal Asynchronous Receiver-Transmitter (UART)=TX,RX Vehicle Lighting - Braking=4,3,2,1,0 Vehicle Lighting - Daytime Running=0,1,2,3 Vehicle Lighting - Extras=0,1,2 Vehicle Lighting - Left Indicators=0,1,2,3 Vehicle Lighting - Right Indicators=0,1,2,3