# MSP microcontroller Watchdog timer

I am new to programming microcontroller.

what does the following like of code do:

WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD


i have looked at the technical reference document but i dont understand how the watchdog timer is stopped by that line of code.

can someone please explain how that code works piece by piece.