SWCU191 February 2022 CC1311P3 , CC1311R3 , CC2651P3 , CC2651R3 , CC2651R3SIPA
The COMPA peripheral requires bias current from the Low-Power Mode Bias (LPMBIAS) module when the System CPU owns and uses the peripheral in Standby TI-RTOS power mode
Set AUX_ANAIF:LPMBIASCTL.EN to enable the LPM Bias module, then set ADI_4_AUX:COMP.COMPA_EN to enable COMPA.