All registers with write-access can be
write-protected optionally by the Peripheral Access Controller (PAC), except for the
following registers:
- Interrupt Flag Status and Clear register (INTFLAG)
- DFLLULP Read Request register (DFLLULPRREQ)
Note: Optional
write-protection is indicated by the "PAC Write-Protection" property in the register
description.
Write-protection does not apply for accesses through an external
debugger.