Astro Carrier for NVIDIA® Jetson™ TX2/TX2i
Users Guide
Document: CTIM-00456
Revision: 0.24
Page 28 of 47
Date: 2021-10-04
GPIO_EXP0_INT
124
GPIO_EXP1_INT
122
I2C_GP1_SCL
151
I2C_GP1_SDA
149
FORCE_RECOV#
55
Design Instruction For the power button, resets, force recovery, sleep, and battery low signals: these
are pulled up on the Jetson™ TX2 or TX2i module. A falling edge on these signals
will trigger an event.
The I2C interface is +3.3V and uses I2C bus 1 within Linux for Tegra.
The four GPIO signals use +1.8V logic levels. The Astro Carrier routes GPIO signals
to the HDC; please reference our
Refer to the Jetson™ TX2 or TX2i module datasheet for nominal RTC battery
voltage and supply requirements.
For all signals listed above:
No additional circuitry required
Route direct to header/connector/device
HDMI – HDC
The Astro Carrier features one display output interface using HDMI 2.0.
Function
HDMI
Location
P2
HDC Bank
B
Pins
61, 63, 65, 69, 71, 75, 77, 81, 83, 87, 89, 93, 95, 101, 103, 105
Design Instruction
The Astro Carrier fully supports the HDMI 2.0 interface from the Jetson
TX2/TX2i module.
All required circuitry is placed on the Astro Carrier.
Route direct to header/connector/device
