In response to determining that the interface is coupled to the host device, the electronic circuit is coupled to the interface such that {HEAD ~ power} is supplied to {TAIL ~ the electronic circuitry} from the host device 
is supplied to
In response to determining that the interface is coupled to the host device , the electronic circuit is coupled to the interface such that { HEAD ~ power } is supplied to { TAIL ~ the electronic circuitry } from the host device
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH