means for putting said nonvolatile memory cells in {HEAD ~ a self refresh mode} to control {TAIL ~ said transition circuit}, to thereby transit data from the output of said sense amplifier to the input of said write amplifier 
to control
means for putting said nonvolatile memory cells in { HEAD ~ a self refresh mode } to control { TAIL ~ said transition circuit } , to thereby transit data from the output of said sense amplifier to the input of said write amplifier
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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