SLAZ294AC October 2012 – August 2021 MSP430F5503
EEM Module
Debug
LPMx.5 debug limitations
Debugging the device in LPMx.5 mode might wake the device up from LPMx.5 mode inadvertently, and it is possible that the device enters a lock-up condition; that is, the device cannot be accessed by the debugger any more.
Follow the debugging steps in Debugging MSP430 LPM4.5 SLAA424 .