SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
The battery voltage on the CC13x2x7 and CC26x2x7 device platform is called VDDS (supply). This supply has the highest potential in the system and typically is the only one provided by the user.
VDDS2 and VDDS3 must always be at the same potential as VDDS.