In a write/read mode, {HEAD ~ data} is transited from {TAIL ~ an input/output buffer} via the transition circuit to an input of the write amplifier or from an output of the sense amplifier via the transition circuit to an input/output buffer 
is transited from
In a write / read mode , { HEAD ~ data } is transited from { TAIL ~ an input / output buffer } via the transition circuit to an input of the write amplifier or from an output of the sense amplifier via the transition circuit to an input / output buffer
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH