SLAS731D December 2011 – September 2018 MSP430F6720 , MSP430F6721 , MSP430F6723 , MSP430F6724 , MSP430F6725 , MSP430F6726 , MSP430F6730 , MSP430F6731 , MSP430F6733 , MSP430F6734 , MSP430F6735 , MSP430F6736
The auxiliary supply system provides the possibility to operate the device from auxiliary supplies when the primary supply fails.There are two auxililary supplies AUXVCC1 and AUXVCC2 supported in MSP430F67xx. This module supports automatic and manual switching from primary supply to auxiliary suppllies while maintaining full functionality. It allows threshold based monitoring of primary and auxiliary supplies. The device can be started from primary supply or from AUXVCC1, whichever is higher. The auxiliary supply system enables internal monitoring of voltage levels on the primary and auxiliary supplies using ADC10_A. This module also implements a simple charger for the backup supplies.