The brownout detector provides the bodcore_in signal to the SUPC. This signal indicates that the voltage regulation is operating as programmed. If this signal is lost for longer than 1 slow clock period while the voltage regulator is enabled, the SUPC asserts vddcore_nreset if SUPC_MR.BODRSTEN is written to ‘1’.
If SUPC_MR.BODRSTEN is set and the voltage regulation is lost (output voltage of the regulator too low), the vddcore_nreset signal is asserted for a minimum of one slow clock cycle and then released if bodcore_in has been reactivated. SUPC_SR.BODRSTS indicates the source of the last reset.
Until bodcore_in is deactivated, the vddcore_nreset signal remains active.