SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
Hibernate mode is initiated when the HIBREQ bit of the HIBCTL register is set. If a wake-up condition has not been configured using the PINWEN or RTCWEN bits in the HIBCTL register, the hibernation request is ignored. In addition, if the battery voltage is below the threshold voltage defined by the VBATSEL field in the HIBCTL register, the hibernation request is ignored.