Power mode 2 (PM2): The voltage regulator to the digital core is turned off. Neither the 32-MHz XOSC nor the 16-MHz RCOSC is running. Either the 32-kHz RCOSC or the 32-kHz XOSC is running. The system goes to active mode on reset, an external interrupt, or when the Sleep Timer expires.
Power consumption: 0.9 uA
Transition to "active" mode: 120 uSec