To prevent any single software error from corrupting DACC behavior, certain registers in the address space can be write-protected by setting the WPEN bit in the DACC Write Protection Mode Register (DACC_WPMR).
If a write access to a write-protected register is detected, the WPVS bit in the DACC Write Protection Status Register (DACC_WPSR) is set and the field WPVSRC indicates the register in which the write access has been attempted.
The WPVS bit is automatically cleared after reading the DACC_WPSR.
The following registers can be write-protected :