39.6.4 Register Write Protection

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

If a write access to a write-protected register is detected, the WPVS flag in the ACC Write Protection Status Register 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 ACC_WPSR register.

The following registers can be write-protected:

• ACC Mode Register
• ACC Analog Control Register