JNX30D TECHNICAL REFERENCE MANUAL
VERSION: 1.4
Page 13 of 28
FEB 2022
5.9
J12 - Micro USB
Standard pinout
OTG support (to flash the compute module)
Host mode (5V 500mA via power limiting switch)
Host mode usable with device tree changes to power external devices, enable power control with
GPIO_02 (Socket pin: 124)
5.10
J13 – CAN
JST-GH 1.25mm
Pin
Description
Socket pin
Note
1
5V
2
CAN_TX
145
3
CAN_RX
143
4
GND
CAN can only be used with Jetson Nano NX and TX2 NX. These pins are reserved with the Nano.
Direct connection to module with no ESD protection!
5.11
J14 - UART connector
JST-GH 1.25mm
Pin
Description
Socket pin
Note
1
5V
2
UART0_TXD
99
OUT (3.3V)
3
UART0_RXD
101
IN (3.3V)
4
UART2_TXD
236
OUT, Debug port (3.3V)
5
UART2_RXD
238
IN, Debug port (3.3V)
6
GND
Unidirectional directional 1.8V to 3.3V level shifters and 10 Ohm series resistance (plus ESD
protection).
5.12
J22 - Reset Button
Press to reset the compute module.
