60.6.3.5.5 VBAT and VDDBU Alarm Filtering

The VBAT and VDDBU alarm detection can be filtered by programming the VBAT Filter register (SECUMOD_VBUFR). The sequence is as follows:

1. Each 20 ms, a VBAT (or VDDBU) measure is performed.
2. If the voltage monitor detects an error, an alarm is sent to the protection unit if the counter value reaches the value programmed in the field Filter Value (SECUMOD_VBUFR.VBATFV) (maximum programmable value = 7).
3. The counter is cleared if the voltage monitor detects no further error.

Refer to Voltage Monitoring in the section "Electrical Characteristics" for more information.