46.5.5 Register Access Protection

To prevent any single software error from corrupting PCC behavior, certain registers in the address space can be write-protected by setting the WPEN bit in the Write Protection Mode Register (WPMR).

If a write access to a write-protected register is detected, the WPVS flag in the Write Protection Status Register (WPSR) is set and WPSR.WPVSRC indicates the register in which the write access has been attempted.

The WPVS bit is automatically cleared after reading WPSR.

The following registers can be write-protected: