56.4.3 Fuse Integrity Checking

The SFC automatically reads the fuse values at start-up and stores them in 32-bit registers in order to make them accessible by software. At this time, the SFC checks the integrity of the fuse states in the reserved area.

If an inconsistency is detected, the check error flag ACE in the Status register (SFC_SR) is set to ‘1’ and can trigger an interrupt. SFC_SR.ACE is automatically cleared at ‘0’ when SFC_SR is read.