SPI，I2C接口

SPI (CN21)

RSB-4680 provides one SPI pin header.

Pin	Description
1	VCC_IO(3.3V)
2	GND
3	SPI_CS0#
4	SPI_CLK
5	SPI_MOSI
6	SPI_MISO

I2C (CN22)

RSB-4680 provides one I2C pin header.

Pin	Description
1	+3.3V
2	GND
3	Touch_INT#
4	I2C4_SCL
5	NC
6	I2C4_SDA