Datasheet
Jetson TX2 Developer Kit DA_09452-005 | 4
Two 3.3V power pins and two 5V power pins. These are not switchable;
power is always available when the developer kit is connected to power.
o Interface signal pins.
By default, all interface signal pins are 3.3V, but some can be configured for
1.8V. See [J24] information below.
Jetson Linux Driver Package (L4T) provides a Python library, Jetson.GPIO,
for controlling GPIOs. The library has the same API as RPi.GPIO. See
/opt/nvidia/jetson-gpio/doc/README.txt on your Jetson system for
details.
By default, all interface signal pins are configured as GPIOs, except pins 3
and 5 and pins 27 and 28, which are I2C SDA and SCL, and pins 8 and 10,
which are UART TX and RX.
Optional Default
Signal
voltage
Pin
Signal
voltage
Default Optional
3.3V Supply 1 2 5.0V Supply
I2C1 SDA
3.3V
3
4
5.0V Supply
I2C1 SCL
3.3V 5 6 Ground
Audio I2S
MCLK
GPIO
3.3V
or 1.8V
7 8 3.3V UART TXD
GPIO
Ground
9
10
3.3V UART RXD
GPIO
UART RTS
GPIO 3.3V 11
12
3.3V
or 1.8V
GPIO
Audio I2S
CLK
GPIO
3.3V
or 1.8V
13
14
Ground
GPIO 3.3V 15
16
3.3V
or 1.8V
GPIO
Digital Mic
Input
3.3V Supply 17
18
3.3V
or 1.8V
GPIO
SPI1 MOSI
GPIO
3.3V
or 1.8V
19
20
Ground
SPI1 MISO
GPIO
3.3V
or 1.8V
21
22
3.3V GPIO
SPI1 SCLK
GPIO
3.3V
or 1.8V
23
24
3.3V
or 1.8V
GPIO SPI1 CS0
Ground 25
26
Not Used
I2C0 SDA
3.3V
27
28
3.3V
I2C0 SCL
GPIO
3.3V
or 1.8V
29
30
Ground
GPIO 3.3V 31
32
3.3V
or 1.8V
GPIO
Digital Mic
Clock