SLVSJM6 November 2025 MSPM0G5187
PMCU Module
Functional
MCU may get stuck while waking up from STOP2 & STANDBY0
If prefetch access is pending when the device transitions to STOP2 or STANDBY, when the device wakes up, the pending prefetch can prevent the device from resuming normal execution. The errata occurs if the WFI instruction is not word aligned, and the flash wait state is 2. In such a case, neither a DMA transfer nor a pending interrupt will be serviced.
User should disable prefetch and issue a shutdown store memory read, which prevents a new prefetch from issuing and allows a pending prefetch to complete.