In {TAIL ~ a self refresh mode}, {HEAD ~ data} from the output of the sense amplifier is fed back via the transition circuit to the input of the write amplifier 
In
In { TAIL ~ a self refresh mode } , { HEAD ~ data } from the output of the sense amplifier is fed back via the transition circuit to the input of the write amplifier
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH