Peripherals

GPIO

VisionFive 2 offers 40-Pin GPIO expansion which is compatible with most accessories on the market, supporting various interface options:

The following table describes the GPIO pin assignments.

All GPIOs can be switched (multiplexed) to support different functions including but not limited to SDIO, Audio, DMIC, SPI, I2C, UART, PWM, and CAN bus. For detailed instructions, refer to the VisionFive 2 40-Pin GPIO Header User Guide (coming soon). The alternate peripheral functions are described in detail in the JH7110 Datasheet.

eMMC

VisionFive 2 offers a high speed eMMC socket for eMMC modules as OS and data storage. The eMMC socket is compatible with industrial commonly used pinout and form factor.

Camera and Display

2-Lane MIPI DSI Pin Definition

The following figure and table describe the 2-lane MIPI DSI definition:

Table 2. 2-Lane MIPI DSI Pin Definition

No.	Definition	Description	Voltage
1	GND	Ground	-
2	50R_MIPITX_L1N	MIPI Output Lane 1 Negative	1.8 V
3	50R_MIPITX_L1P	MIPI Output Lane 1 Positive	1.8 V
4	GND	Ground	-
5	50R_MIPITX_CLK0N	MIPI Output Clock 0 Negative	1.8 V
6	50R_MIPITX_CLK0P	MIPI Output Clock 0 Positive	1.8 V
7	GND	Ground	-
8	50R_MIPITX_L0N	MIPI Output Lane 0 Negative	1.8 V
9	50R_MIPITX_L0P	MIPI Output Lane 0 Positive	1.8 V
10	GND	Ground	-
11	DSI_I2C_SCL_GPIO3	DSI I2C SCL	3.3 V
12	DSI_I2C_SDA_GPIO2	DSI I2C SDA	3.3 V
13	GND	Ground	-
14	+3.3 V	Power Voltage for digital circuit 3.3 V	3.3 V
15	GND	GND	1.8 V

4-Lane MIPI DSI Pin Definition

The following figure and table describe the 4-lane MIPI DSI definition:

Note: The compatible model is CZ101B4001.

Table 3. 4-Lane MIPI DSI Pin Definition

PIN NO.	Pin Definition	Description	Voltage
1	VCC_LCD_MIPI_2	Power Voltage for digital circuit 3.3 V	3.3 V
2	VDD18_IO	Power Voltage for digital circuit 1.8 V Note 1	1.8 V
3	NC	No connection	-
4	LCD_RESET_1	Global reset pin 1.8V Note 1	1.8 V
5	NC	No connection	-
6	GND	Ground	-
7	50R_MIPITX_L0N	MIPI Output Lane 0 Negative	1.8 V
8	50R_MIPITX_L0P	MIPI Output Lane 0 Positive	1.8 V
9	GND	Ground	-
10	50R_MIPITX_L1N	MIPI Output Lane 1 Negative	1.8 V
11	50R_MIPITX_L1P	MIPI Output Lane 1 Positive	1.8 V
12	GND	Ground	-
13	50R_MIPITX_CLK0N	MIPI Output Clock 0 Negative	1.8 V
14	50R_MIPITX_CLK0P	MIPI Output Clock 0 Positive	1.8 V
15	GND	Ground	-
16	50R_MIPITX_L2N	MIPI Output Lane 2 Negative	1.8 V
17	50R_MIPITX_L2P	MIPI Output Lane 2 Positive	1.8 V
18	GND	Ground	-
19	50R_MIPITX_L3N	MIPI Output Lane 3 Negative	1.8 V
20	50R_MIPITX_L3P	MIPI Output Lane 3 Positive	1.8 V
21	GND	Ground	-
22	GND	Ground	-
23	TP_RST_LCD	TP_RESET	3.3 V
24	VCC_TP	TP_VCC	3.3 V
25	TP_INT_LCD	TP_INT	3.3 V
26	TP_SDA_LCD	TP_SDA	3.3 V
27	TP_SCL_LCD	TP_SCL	3.3 V
28	GND	Ground	-
29	GND	Ground	-
30	VCC_LCD_MIPI_2	Power Voltage for digital circuit 3.3 V	3.3 V
31	VCC_LCD_MIPI_2	Power Voltage for digital circuit 3.3 V	3.3 V
32	GND	Ground	-
33	GND	Ground	-
34	VCC_LEDK2	LED Cathode	Up to 30 V. The adjustable output voltage can be controlled by MIPI_PWR_EN . The voltage is adjustable and the value depends on the backlight requirement. The voltage level of the 4-lane MIPI screen, which has been tuned by StarFive VCC_LEDK2, ranges from 9 V to 10.5 V.
35	VCC_LEDK2	LED Cathode
36	NC	No connection	-
37	NC	No connection	-
38	VCC_LEDA2	LED Anode	0 V
39	VCC_LEDA2	LED Anode	0 V
40	PAD1	The fixed pin to be connected to GND.	-
41	PAD2	The fixed pin to be connected to GND.	-

USB Host

VisionFive 2 has 4 × USB 3.0 ports (multiplexed with a PCIe 2.0 1x lane).

USB Device Port

VisionFive 2 has 1 × USB device port by reusing the USB-C port.

HDMI

VisionFive 2 has 1 × HDMI port, supporting HDMI 2.0 with resolutions up to 4K@30fps or 2K@60fps.

Audio Jack

VisionFive 2 supports analog audio output via a 4-ring 3.5 mm headphone jack.

M.2 Connector

VisionFive 2 offers an M.2 M-Key SSD socket with 1 × PCIe 2.0 interfaces, providing high speed storage access.

Gigabit Ethernet Port

VisionFive 2 has 2 × RJ45 Gigabit Ethernet ports.

Boot Mode Pins

VisionFive 2 provides pins to determine the boot mode before it is powered up. The following are the available boot modes:

4-Pin PoE Header

VisionFive 2 provides Power over Ethernet (PoE) function. PoE carries electrical power through data cables, and reduces the cabling requirements for network devices. You can use this function by adding a separate PoE HAT out of our product package.

Fan Header

VisionFive 2 has a 2-pin fan header. You can connect a 2-pin 5 V fan to the board if needed.

Button

VisionFive 2 provides 1 Reset button.

Temperature Range and Thermals

The recommended ambient operating temperature range is 0 to 50 degrees Celcius.

To reduce thermal output when idling or under light load, VisionFive 2 reduces the CPU clock speed and voltage. During heavier load, the speed and voltage (and hence thermal output) are increased. The internal governor will throttle back both the CPU speed and voltage to make sure the CPU temperature never exceeds 85 degrees C.

VisionFive 2 will operates well without any extra cooling and is designed for sprint performance, expecting a light use case on average and ramping up the CPU speed when needed (for example, when loading a webpage). If you want to load the system continually or operate it at a high temperature at full performance, further cooling may be needed.