30.4.4 Register Access Protection

Registers with write access can be optionally write-protected by the Peripheral Access Controller (PAC), except for the following:

  • Interrupt Flag (INTFLAG) register
  • Channel Pending Interrupt (INTPEND)
  • Channel n Interrupt Flag Status and Clear (CHINTFLAGn)
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.