3.5.3 Supply Monitor

Input pin PB13 of SAM4CMS16C is used to monitor the V_DD voltage rail through external voltage divisors. In addition, input pin PA4 of PL360 can be used to monitor the V_DD voltage rail.

The voltage monitor circuit allows the implementation of multiple applications such as:

Detection of fault conditions
Detection of low power mode entering conditions
Detection of wake-up situations
Measuring of PLC power amplifier voltage value

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