[81] GPIO: PIN_CNF is not retained when in debug interface mode

This anomaly applies to IC Rev. Engineering C, build codes QIAA-CA0, CKAA-CA0.

It was inherited from the previous IC revision Engineering B nRF52840.


GPIO pin configuration is reset on wakeup from System OFF.


The system is in debug interface mode.


GPIO state unreliable until PIN_CNF is reconfigured.