SLAZ525AA August 2014 – August 2021 MSP430FR59891
RTC Module
Functional
RTC interrupt flag can be lost during LPMx.5 entry
An RTC interrupt flag can get lost if it triggers within a small critical time window of the device's entry into LPM3.5. This results in the RTC interrupt flag not triggering a wake-up from LPM3.5. The subsequent RTC interrupt flag is captured to wake device up from LPM3.5.
Use LPM3 for timing-critical applications where the device is entering LPM3.5 close to the RTC interrupt flag triggering.