SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
In this mode, the power supplies are turned off to the main part of the microcontroller and only the circuitry of the Hibernation module is active. An external wake event or RTC event is required to return the microcontroller to run mode. When exiting hibernation mode, the Cortex-M4F processor and peripherals other than the Hibernation module see a normal "power on" sequence and the processor starts running code. If the Hibernation module has been put in hibernation mode and a reset occurs, the reset handler should read the HIB Raw Interrupt Status (HIBRIS) register in the Hibernation module to determine the cause of the reset.