A configuration register is used to determine {HEAD ~ the phase adjustment} of {TAIL ~ the memory clock signal} 
of
A configuration register is used to determine { HEAD ~ the phase adjustment } of { TAIL ~ the memory clock signal }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL