This anomaly applies to Engineering A, build code QFAA-Axx.
Symptoms
The device does not behave as expected after a soft reset.
Conditions
A soft reset is triggered exactly at the same time as a power domain transitions from RUN state to IDLE state.
Consequences
Some parts of the device are not fully reset.
Workaround
Apply the appropriate workaround for the affected soft resets:
- Before AIRCR.SYSRESETREQ is used, apply constant latency submode.
- Prevent the processor from entering lockup state when code is executed in NMI or HardFault handlers.
- When CTRL-AP is used, avoid using soft reset and use pin reset instead.