In one embodiment, a power supply controller is configured to reset or override a soft-start reference signal responsively to the output voltage decreasing to a value that is less than a desired regulated value of the output voltage. The high-speed interface circuit block includes a physical layer circuit that receives data using differential signals, and a link controller that performs a link layer process. , to allow disposal of the waste bin contents. The selector circuit may further act to independently verify power conditions and override instructions from the PMU in certain instances to enhance power supply safety and battery life such as by preventing inter battery current flow from a higher potential battery to a lower potential battery coupled in parallel. If the node is determined to be lower priority, then the node retransmits the arbitration token without overwriting the ID field.