60.6.6.2.1 Backup Mode Configuration

To switch to Backup mode:

Configure SECUMOD_BMPR or SECUMOD_WKPR to enable the protections that will be required when Backup mode is activated.
Set SECUMOD_CR.BACKUP to switch to Backup mode.
Shut down all power supplies except VBAT.

The Backup mode protection is now enabled and the VDDCORE voltage monitors are disabled. This avoids detection of an error signal coming from one of these monitors and a subsequent automatic clear of BUSRAM4KB and BUREG256b.

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