Pinout Description

Pinout description top side

Please note that the software GPIO number differs from the socket pin number. This software GPIO number must be computed with a special formula and differs between the various compute modules. Please see appendix B for details.

J1 – Power input jack

Nexus-5876J

Description

Note

12V

12V nominal (absolute max. 20V)

recommend power supply 12V 36W (or higher)

Reverse voltage protection

over voltage protection (SMA6J18CA) with max 20V peak

GND

Reverse voltage protection also functions as back power protection if PoE injection is used with J32 pin 2. If a voltage higher than 20V is applied, the TRS diode will heat up and get damaged.

J3 – Ethernet (GbE)

Standard RJ45 pinout with PoE capable magnetics class 3 and 4 (PD or PSE). Connected to the Ethernet controller on the compute module. PoE-PD and PoE-PSE are supported with the corresponding variants of the JNX30. Also, there is the new JNX30 PDiso (38481) with isolated PoE-PD.

J4 – M.2 PCIEx4 NVMe SSDs

Please note that only NVMe SSDs are supported. SATA SSDs are not supported. We recommend the 128 GB Transcend SSDs (TS128GMTE110S). This SSD is standard in some Auvidea dev kit offerings.

J5 – CSI-2 CD

22 pin 0.5 mm pitch FPC connector

Description

Socket pin

Note

3.3V

Power: connected with bead to 3.3V (5V optional if bead is moved)

GEN1_I2C_SDA

187

GEN1_I2C_SCL

185

GND

CAM2-MCLK

IN: Input - connect to 1.8V or 3.3V output of the camera to drive the CAM LED.

1: enable CAM LED

0: disable CAM LED

CAM2_PWDN

206

OUT: Output (open drain with 2.2k pullup to 3.3V) - connect to power enable of camera. The control signal is connected via level shifting inverter to pin 152 of the compute modules.

GND

CSI_D_D1_P

CSI_D_D1_N

GND

CSI_D_D0_P

CSI_D_D0_N

GND

CSI_C_CLK_P

CSI_C_CLK_N

GND

CSI_C_D1_P

CSI_C_D1_N

GND

CSI_C_D0_P

CSI_C_D0_N

GND

Please note that on the JNX30 each camera connector uses its own I2C bus. This setup is different from the NVIDIA dev kit. If you like to use CSI-2 cameras, please install the Auvidea BSP (firmware).

This CSI-2 connector has the same 22 pin pinout as the 22-pin connector on the Raspberry Pi Zero and Raspberry Pi compute module dev kit board. With adapter cable, it may connect to Raspberry Pi camera 2.1 and Vision Component camera modules. Alvium cameras require the Alvium adapter.

Pin 6: by default, the device tree puts a PWM signal on pin 206 (LCD_BL_PWM - GPIO_07). For most cameras (like Raspberry Pi camera with iMX219 sensor) this needs to be changed to a constant low output to send a high to the camera for power enable. This is part of the device tree changes.

Some Vision Component camera modules use this pin to synchronize multiple cameras. The pin 5s of all CSI-2 connectors are OR red together and drive the CAM LED output.

J6 Display port

J7 – Power out

SM10B-GHS-TB

Description

Socket pin

Note

V_IN

12V

GND

J8 – USB 2.0

JST-GH 1.25 mm

Description

Socket pin

Note

USB2_D_N

121

USB2_D_P

123

GND

Internal USB 2.0 JST-GH connector to connect to internal USB 2.0 add-on modules (like U100, U110, U120, …).

J9 – HDMI

Standard pinout

CEC is not supported (pin 13 of HDMI connector)

Power pin 18 is current limited by PTC fuse (5V 50mA)

J10 – CSI-2 AB

22 pin 0.5 mm pitch FPC connector

Description

Socket pin

Note

3.3V

Power: connected with bead to 3.3V (5V optional if bead is moved)

CAM-I2C_SDA

215

CAM-I2C_SCL

213

GND

CAM1-MCLK

IN: Input - connect to 1.8V or 3.3V output of the camera to drive the CAM LED.

1: enable CAM LED

0: disable CAM LED

CAM1_PWDN

206

OUT: Output (open drain with 2.2k pullup to 3.3V) - connect to power enable of camera. The control signal is connected via level shifting inverter to pin 152 of the compute modules.

GND

CSI_B_D1_P

CSI_B_D1_N

GND

CSI_B_D0_P

CSI_B_D0_N

GND

CSI_A_CLK_P

CSI_A_CLK_N

GND

CSI_A_D1_P

CSI_A_D1_N

GND

CSI_A_D0_P

CSI_A_D0_N

GND

See further details in the J5 description.

J11 – USB 3.0 – 3.1

USB 3.0 Type A standard pinout

In Rev 1: power control is always on (5V 1A)

In Rev 2 and up: Controllable with GPIO_03 (socket pin 126) power on[0]/off[1], default off[1], 5V 1A

See Appendix B for documentation on how to configure and use GPIOs.

J12 – Micro USB

Standard pinout

OTG support (to flash the compute module)

See Appendix B for documentation on how to configure and use GPIOs.

J13 – FAN

Pico blade 1.5 mm

Description

Socket pin

Note

GND

Max. 1A

TACH

Not connected

PWM

Open drain output with 10k pullup to 5V

J14 – UART connector

JST-GH 1.25 mm

Description

Socket pin

Note

UART0_TXD

OUT (3.3V)

UART0_RXD

101

IN (3.3V)

UART2_TXD

236

OUT, Debug port (3.3V)

UART2_RXD

238

IN, Debug port (3.3V)

GND

Unidirectional directional 1.8V to 3.3V level shifters and 10 Ohm series resistance (plus ESD protection).

J32 – CAM LED

SM04B-GHS-TB

Description

Socket pin

Note

12V

CAM_LED

OUT: open drain (3.3V to 12V)

CAM_LED

OUT: open drain (3.3V to 12V)

CAM_LED: open drain output to drive cathode of camera LED.

Controlled by 3 signals which are OR red together:

J5 pin 5 (CSI CD camera)

J10 pin 5 (CSI AB camera)

Compute module GPIO_12: (socket pin 218) 0: LED off, 1: LED on, float: LED on

CAM_LED flash signal can be used to control external camera LED. When using an external LED, please limit current with an external resistor. Connect cathode to CAM_LED pin and anode to 3.3V to 12V power. Maximum current: 2A.

J34 - Power input jack

MOLEX-436500216

Description

Note

12V

12V nominal (absolute max. 20V)

recommend power supply 12V 36W (or higher)

Reverse voltage protection

over voltage protection (SMA6J18CA) with max 20V peak

GND

J36 – FAN

Pico blade 1.5 mm

Description

Socket pin

Note

GND

Max. 1A

TACH

Not connected

PWM

230

Open drain output with 10k pullup to 5V

P11 - PoE connector

This connects to the 4 center pins of the Ethernet magnetics on the cable side to extract or inject PoE power. This connector may be used for PoE addon solutions.

U1 Crypto chip

Model: ATSHA204A

Description

Socket pin

Note

GND

GEN2_I2C_SDA

GEN2_I2C_SCL

3.3V

Integrated for software protection and licensing.

Datasheet Link:

https://ww1.microchip.com/downloads/en/DeviceDoc/ATSHA204A-Data-Sheet-40002025A.pdf

LED - Eth

Shows Ethernet activity on Socket pin 194 – on[0]/off[1], default: off

At own risk, resistor can be moved to control Eth-LED via socket pin 188 (link LED)

LED – Over current

Placed between J1 (Power connector) and J3 (Ethernet).

Shows over current condition of integrated 5V 8A power supply. If 8A is exceeded, the power output is disabled, and the LED is activated to red. To reset this over current condition, power input must be cycled.

The integrated 5V power controller supplies power to the compute module, the USB ports and the 3.3V power controller for the M.2 socket.

LED – PWR

Controlled by GPIO_PA6 (socket pin 178): on[1]/off[0], default: off[0].

LED – RGB

Pinout description bottom side

J15 – Super Cap UPS

UMPT-05-01.5-T-VT-SM-WT-K

Description

Socket pin

Note

V-12

GND

Vout

/PFO

GPI

Vdc

V-12

J16 – Power On

Press to power on the system

J17 – Buttons

SM06B-GHS-TB

Description

Socket pin

Note

Vdd_RTC

SYS_RST_IN

Same pin as J20

FORCE_REC

Same pin as J18

GPIO_PA6

BTN_PWR_ON

Same pin as J16

GND

J18 – Force Recovery

Press to bring system in to force recovery mode during power up

J19 – CSI-E

22 pin 0.5 mm pitch FPC connector

Description

Socket pin

Note

3.3V

Power: connected with bead to 3.3V (5V optional if bead is moved)

GEN2-I2C_SDA

GEN2-I2C_SCL

GND

CAM3-MCLK

IN: Input - connect to 1.8V or 3.3V output of the camera to drive the CAM LED.

1: enable CAM LED

0: disable CAM LED

CAM1_PWDN

OUT: Output (open drain with 2.2k pullup to 3.3V) - connect to power enable of camera. The control signal is connected via level shifting inverter to pin 152 of the compute modules.

GND

CSI_E_CLK_P

CSI_E_CLK_N

GND

CSI_E_D1_P

CSI_E_D1_N

GND

CSI_E_D0_P

CSI_E_D0_N

GND

J20 – Reset Button

Press to reset the compute module.

J21 – CSI-F

22 pin 0.5 mm pitch FPC connector

Description

Socket pin

Note

3.3V

Power: connected with bead to 3.3V (5V optional if bead is moved)

GEN3-I2C_SDA

3.3V

GEN3-I2C_SCL

3.3V

GND

CAM3-MCLK

IN: Input - connect to 1.8V or 3.3V output of the camera to drive the CAM LED.

1: enable CAM LED

0: disable CAM LED

CAM4_PWDN

OUT: Output (open drain with 2.2k pullup to 3.3V) - connect to power enable of camera. The control signal is connected via level shifting inverter to pin 152 of the compute modules.

GND

CSI_F_CLK_P

CSI_F_CLK_N

GND

CSI_F_D1_P

CSI_F_D1_N

GND

CSI_F_D0_P

CSI_F_D0_N

GND

J22 – SPI

SM10B-GHS-TB

Description

Socket pin

Note

3.3V

1.8V

SPI2_SCK

106

1.8V

SPI2_MISO

108

1.8V

SPI2_MOSI

104

1.8V

SPI2_CS0

110

1.8V

SPI2_CS1

112

1.8V

GEN1_I2C_SCL

185

3.3V

GEN1_I2C_SDA

187

3.3V

GND

J23 – USB0

Standard pinout USB2.0

J25 – UART0

SM06B-GHS-TB

Description

Socket pin

Note

5.0V

UART0_TXD

1.8V

UART0_RXD

1.8V

UART0_RTX

1.8V

UART0_CTS

1.8V

GND

J26 – I2S0

SM06B-GHS-TB

Description

Socket pin

Note

1.8V

I2S0_SDIN

I2S0_SDOUT

I2S0_LRCK

I2S0_SCLK

GND

J27 – I2C2

SM04B-GHS-TB

Description

Socket pin

Note

5.0V

(3.3V optional)

GEN2_I2C_SCL

189

GEN2_I2C_SDA

191

GND

J28 – I2S1

SM06B-GHS-TB

Description

Socket pin

Note

1.8V

I2S1_SDIN

I2S1_SDOUT

I2S1_LRCK

I2S1_SCLK

GND

J29 – I2C3

SM04B-GHS-TB

Description

Socket pin

Note

5.0V

(3.3V optional)

CAM_I2C_SCL

CAM_I2C_SDA

GND

J30 – WPS

SM02B-GHS-TB

Description

Socket pin

Note

3.3V

WPS/PDN

Connected to the USB Wifi Module (LM823), pin 6

J33 – PCIe x1

FH55-22S-0.5SH

Description

Socket pin

Note

GND

GPIO_05

PCIE_WAKE_L

GND

PEX_L1_CRQ

PEX_L1_RST

GND

PEX_RX0_N

PEX_RX0_P

GND

PEX_TX0_N

PEX_TX0_P

GND

PEX_CLK2_N

PEX_CLK2_P

GND

3.3V

GND

5.0V

GND

J35 – CAN

SM04B-GHS-TB

Description

Socket pin

Note

5.0V

CAN_TX

CAR_RX

GND

Micro SD

Standard pinout

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hashtagPinout description top side

hashtagJ1 – Power input jack

hashtagJ3 – Ethernet (GbE)

hashtagJ4 – M.2 PCIEx4 NVMe SSDs

hashtagJ5 – CSI-2 CD

hashtagJ6 Display port

hashtagJ7 – Power out

hashtagJ8 – USB 2.0

hashtagJ9 – HDMI

hashtagJ10 – CSI-2 AB

hashtagJ11 – USB 3.0 – 3.1

hashtagJ12 – Micro USB

hashtagJ13 – FAN

hashtagJ14 – UART connector

hashtagJ32 – CAM LED

hashtagJ34 - Power input jack

hashtagJ36 – FAN

hashtagP11 - PoE connector

hashtagU1 Crypto chip

hashtagLED - Eth

hashtagLED – Over current

hashtagLED – PWR

hashtagLED – RGB

hashtagPinout description bottom side

hashtagJ15 – Super Cap UPS

hashtagJ16 – Power On

hashtagJ17 – Buttons

hashtagJ18 – Force Recovery

hashtagJ19 – CSI-E

hashtagJ20 – Reset Button

hashtagJ21 – CSI-F

hashtagJ22 – SPI

hashtagJ23 – USB0

hashtagJ25 – UART0

hashtagJ26 – I2S0

hashtagJ27 – I2C2

hashtagJ28 – I2S1

hashtagJ29 – I2C3

hashtagJ30 – WPS

hashtagJ33 – PCIe x1

hashtagJ35 – CAN

hashtagMicro SD

Pinout description top side

J1 – Power input jack

J3 – Ethernet (GbE)

J4 – M.2 PCIEx4 NVMe SSDs

J5 – CSI-2 CD

J6 Display port

J7 – Power out

J8 – USB 2.0

J9 – HDMI

J10 – CSI-2 AB

J11 – USB 3.0 – 3.1

J12 – Micro USB

J13 – FAN

J14 – UART connector

J32 – CAM LED

J34 - Power input jack

J36 – FAN

P11 - PoE connector

U1 Crypto chip

LED - Eth

LED – Over current

LED – PWR

LED – RGB

Pinout description bottom side

J15 – Super Cap UPS

J16 – Power On

J17 – Buttons

J18 – Force Recovery

J19 – CSI-E

J20 – Reset Button

J21 – CSI-F

J22 – SPI

J23 – USB0

J25 – UART0

J26 – I2S0

J27 – I2C2

J28 – I2S1

J29 – I2C3

J30 – WPS

J33 – PCIe x1

J35 – CAN

Micro SD