SWRA486A August 2015 – April 2017 CC1310 , CC2620 , CC2630 , CC2640 , CC2640R2F-Q1 , CC2650 , CC2650MODA
Turn on the auxiliary domain for the Cortex-M3 to access the modules in the auxiliary domain, including the OSC_DIG registers to configure the oscillators. Power off the auxilliary domain before entering standby and shutdown modes. For further details on entering and exiting power modes, see Section 3.