X221, -LC, -AI
TECHNICAL REFERENCE MANUAL
VERSION: 1.4
Page 10 of 38
SECTION 4
Features
4.1
Crypto authentication chip
Pin
Description
Model
ATSHA204A-MAHCZ-T
Datasheet
https://ww1.microchip.com/downloads/en/DeviceDoc/ATSHA204A-Data-
The crypto chip can used for authentication, software licensing and copy protection.
4.2
Safety MCU
4.2.1
Features
Ability to control power management of carrier board and AGX Xavier
Select boot chain (GPIO)
Retrieve internal status (SPI)
Monitor internal power rails (I2C)
For further details refer to NVIDIA documentation:
Jetson Xavier OEM product design guide (NVIDIA Jetson download center: 15.5 Safety MCU)
4.2.2
Block diagram of Safety MCU