This anomaly applies to IC Rev. Engineering A, build codes SICA-BAA.
NRF_POWER->EVENT_SLEEPENTER and NRF_POWER->EVENT_SLEEPEXIT are asserted.
After device reset.
NRF_POWER->EVENT_SLEEPENTER and NRF_POWER->EVENT_SLEEPEXIT registers are set to true after reset.
After reset, NRF_POWER->EVENT_SLEEPENTER and NRF_POWER->EVENT_SLEEPEXIT must be cleared before enabling them as IRQ sources.