3.4.10 MIPI CSI/DSI Interface

The SAM9X75-Curiosity board 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 (J29) with 0.5 mm pitch, similar to the one used for the Raspberry Pi Compute Module boards. 4-lane MIPI cameras can connect to the board directly, while 2-lane cameras and displays provided by Raspberry Pi⁽¹⁾ require a 22-pin to 15-pin FPC adapter. For 4-lane MIPI displays, an adapter is necessary due to various non-standard connector pinout across different manufacturers. Additional GPIOs and TWI interface are provided for camera/display control.

Note:

Raspberry Pi is a trademark of Raspberry Pi Trading.

The following figure shows the MIPI CSI camera interface.

A diagram of a computer Description automatically generated — Figure 3-34. MIPI CSI Camera Interface

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

Table 3-19. MIPI CSI/DSI Interface Signal Description
Pin No.	PIO	Signal Name	Signal Description
1, 4, 7, 10, 13, 16, 19	–	GND	Ground
2	–	MIPI_D0_N	MIPI D-PHY negative differential input data 0
3	–	MIPI_D0_P	MIPI D-PHY positive differential input data 0
5	–	MIPI_D1_N	MIPI D-PHY negative differential input data 1
6	–	MIPI_D1_P	MIPI D-PHY positive differential input data 1
8	–	MIPI_CK_N	MIPI D-PHY negative differential input clock
9	–	MIPI_CK_P	MIPI D-PHY positive differential input clock
11	–	MIPI_D2_N	MIPI D-PHY negative differential input data 2
12	–	MIPI_D2_P	MIPI D-PHY positive differential input data 2
14	–	MIPI_D3_N	MIPI D-PHY negative differential input data 3
15	–	MIPI_D3_P	MIPI D-PHY positive differential input data 3
17	PC19	MIPI_CSI_GPIO0	General Purpose I/O
18	PC15	MIPI_CSI_GPIO1	General Purpose I/O
20	PA25	CAM_I²C_CLK_	TWI Clock
21	PA24	CAM_I²C_DATA	TWI Data
22	–	VDD_3V3 or 5V_MAIN	3.3V or 5V