In this use case, SYS is not powered, and MAX77958 is disconnected while USB is absent. In such a case, it clamps the CC pins to a sink state, and when a USB Type C cable is inserted, it identifies as a sink device, and makes the PD adapter present 5V at VBUS. After 5V is applied, MAX77958 will wake, do the USB identification, and negotiate up to higher voltage, based on the customization script and firmware configuration.