Astro Carrier for NVIDIA® Jetson™ TX2/TX2i
Users Guide
Document: CTIM-00456
Revision: 0.24
Page 15 of 47
Date: 2021-10-04
Auto-Power Mode
The Astro carrier features an Auto-Power circuit. If the switch the ON position the
Jetson™
TX2/TX2i will
boot when power is applied to the carrier. If the switch is in the OFF position a power button input
signal is required to boot the
Jetson™
TX2/TX2i module.
Function
Auto-Power Select Switch
Location
S1A
Type
DIP Switch
Description S1A OFF = Auto-Power Disabled
S1A ON = Auto-Power Enabled
Note:
Due to the changes done to the PMIC circuitry of the TX2i Jetson Module the Astro Carrier will
always remain ON when in AT (Automatic Power ON) and ATX (Push Power button) modes. This will
cause the Astro Carrier to automatically power ON when voltage is applied to the system. The system
will in addition be unable to shut down in software (Soft Shutdown), due to the characteristics of the
TX2i power circuitry as such the system will perform a Reset/Reboot function.
microSD Card Slot
The Astro Carrier features a microSD Card Slot for system purposes. It is connected directly to the
SDCARD interface on the Jetson™ TX2 or TX2i.
Function
microSD Card Slot
Location
P1
Type
Molex microSD Memory Card Connector
P/N
5025700893
Pinout
Pin Description
1
SD_D2
2
SD_D3
3
SD_CMD
4
SD_VDD
5
SD_CLK
6
GND
7
SD_D0
8
SD_D1
9
GND
10 SD_CD#