22.5.7 Register Access Protection
Registers with write-access can be write-protected optionally by the peripheral access controller (PAC).
PAC Write-Protection is not available for the following registers:
- Interrupt Flag register (INTFLAG).
Optional PAC Write-Protection is denoted by the "PAC Write-Protection" property in each individual register description.
Write-protection does not apply to accesses through an external debugger.