3.18.8 MIPI CSI/DSI Interface

The SAM9X75 cHybrid embeds a 4-lane MIPI D-PHY for interfacing with CSI-compatible cameras and DSI-compatible displays.

The board features a 22-pin FPC/FFC connector (J8) with a 0.5 mm pitch, similar to the one used for the Raspberry Pi® Compute Module boards. Four-lane MIPI cameras can connect to the board directly, while official RPi 2-lane cameras and displays require a 22 to 15-pin FPC adapter. For 4-lane MIPI displays, an adapter is required due to various non-standard connector pinouts across different manufacturers. Additional GPIOs and a TWI interface are provided for camera/display control.

The following figure shows the MIPI CSI/DSI camera and display interface.

Figure 3-24. MIPI CSI/DSI Interface

The following table shows the MIPI CSI/DSI interface signal descriptions.

Table 3-12. MIPI CSI/DSI Interface Signal Description
Pin No	PIO	Signal Name	Signal Description
4, 7, 10, 13, 16, 19, 22	–	GND	Ground
21	–	MIPI_D0_N	MIPI DPHY negative differential input data 0
20	–	MIPI_D0_P	MIPI DPHY positive differential input data 0
18	–	MIPI_D1_N	MIPI DPHY negative differential input data 1
17	–	MIPI_D1_P	MIPI DPHY positive differential input data 1
15	–	MIPI_CK_N	MIPI DPHY negative differential input clock
14	–	MIPI_CK_P	MIPI DPHY positive differential input clock
12	–	MIPI_D2_N	MIPI DPHY negative differential input data 2
11	–	MIPI_D2_P	MIPI DPHY positive differential input data 2
9	–	MIPI_D3_N	MIPI DPHY negative differential input data 3
8	–	MIPI_D3_P	MIPI DPHY positive differential input data 3
6	PB12	MIPI_CSI_GPIO0	General purpose I/O
5	PB26	MIPI_CSI_GPIO1	General purpose I/O
3	PB5	DISP_I²C_CLK	TWI clock
2	PB4	DISP_I²C_DATA	TWI data
1	–	VDD_3V3 or 5V_MAIN	3.3V or 5V