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AM2434: Detection of Power Supply Abnormalities

Part Number: AM2434

Hello,

We are using the AM2434 on a board that is currently under development.
The peripheral power supply is 3.3V, 1.8V is supplied for reset, clock, and ADC, and 0.85V is supplied for the core power.

If a failure occurs in the power supply circuitry and an overvoltage, undervoltage, or power loss is detected, does the microcontroller have any built-in functionality to protect itself?

If it does not, what kinds of countermeasures are possible on the user side to move the system to a safe state, such as stopping program execution?