13.4.7 Register Access Protection

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

Interrupt Flag register (INTFLAG).
Reset Cause register (RCAUSE).

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. Refer to PAC – Peripheral Access Controller for details.

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