I am referring the MC9S12ZVM-Family RM.
184.108.40.206 Register Write Protection, note mentions -
Make sure to set the write protection bit WP in PMFCFG0 after configuring
and prior to enabling PWM outputs and fault inputs.
Query is whether this write protect [WP] feature is used to avoid writing on those registers by user or to avoid spurious writes[ not from user code].
My understanding is that once these write protect registers are initialised in the Init sequence, they are not written over again.
Thank you in advance.