CCS/MSP432P401R: Questions about MSP432 deep sleep mode

Part Number: MSP432P401R

Tool/software: Code Composer Studio

HI ALL:

I have two questions about the use of deep sleep to consult.

1. I used VCORE1, and I called “ MAP_PCM_setPowerState(PCM_AM_LDO_VCORE1);  “， when I initialized.

   Whether the  function needs to be called again when msp432 is awakened？If you do not call again, will the default value VCORE1 be restored?

2. In order to reduce the minimum power consumption, I need to turn off the initialized peripherals during sleep.  such as uart，spi etc.

   I have seen in some example code the function of a switch with related control peripherals power. But I forgot the specific location of the code, and I didn't find the relevant API in the drvlib document.

  Please give me some clues or reference code.

Thanks very much.