57.4.5.1 Fuse Reading
The fuse states are automatically latched at core start-up and are available for reading in the Data registers (SFC_DRx).
The fuse states of bits 0 to 31 are available in SFC_DR0, the fuse states of bits 32 to 63 are available in SFC_DR1, etc.
When fuse programming is performed, the fuse states are automatically updated in SFC_DRx.