What is the main role of AURIX MCU in AGX?

Autonomous Vehicles DRIVE AGX Xavier DRIVE AGX Xavier General
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Software Version
DRIVE OS Linux 5.2.0
DRIVE OS Linux 5.2.0 and DriveWorks 3.5
[*] NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version
other

Target Operating System
[*] Linux
QNX
other

Hi, community,
I checked the DRIVE OS related documents. I would like to consult some questions about tegra SoC and aurix MCU.
I don’t know if my understanding is true. I understand that all programs including perception, planning, control and other functions should be completed on the tegra SoC of xavier. So what is the main role of AURIX MCU in autonomous driving? What capabilities are included?
Do I need to write a program to operate the MCU to accomplish what operation?

Thanks.

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Dear @guaiyia,
It could be used to control power of SoC. Also, MCU could be used to perform some safety compilations as well. For normal AV application development/prototyping the componets on the SoC are enough.

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