MSP430F5529 LPM Questions in General Posted November 23, 2017 7 hours ago, dubnet said: You would need to take a look at the documentation for the F5529 to verify that it can be awakened with a GPIO interrupt. In a very deep sleep, IIRC, the list of available interrupt sources gets shorter. So if LPM4.5 supports a GPIO transition as a wakeup source you should be good to go. On page 51 of the data sheet for the F5529, it states "Wake-up signal from RST/NMI, P1, and P2" listed under the Low-power mode 4.5 section. That confirms it as an option for what I'm trying to implement, right?