18.6.2.2 Configurable Reset Values
After a Power-on Reset, some registers will be loaded with initial values from the NVM User Row. Refer to NVM User Row Mapping for more details.
This encompasses the following bits and bit groups:
- Enable bit in the Control register, CTRL.ENABLE
 - Always-On bit in the Control register, CTRL.ALWAYSON
 - Watchdog Timer Windows Mode Enable bit in the Control register, CTRL.WEN
 - Watchdog Timer Windows Mode Time-Out Period bits in the Configuration register, CONFIG.WINDOW
 - Time-Out Period in the Configuration register, CONFIG.PER
 - Early Warning Interrupt Time Offset bits in the Early Warning Interrupt Control register, EWCTRL.EWOFFSET
 
For more information about fuse locations, see NVM User Row Mapping.
