This is accomplished by having the row address bit controlling {TAIL ~ a cross point switch} that is inserted into the data path from {HEAD ~ the selected column} to the sense amplifier and to ground 
This is accomplished by having the row address bit controlling { TAIL ~ a cross point switch } that is inserted into the data path from { HEAD ~ the selected column } to the sense amplifier and to ground
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH