{HEAD ~ This flexible phase adjustment technique} is valuable in meeting {TAIL ~ various timing requirements} in a source synchronous memory controller 
is valuable in meeting
{ HEAD ~ This flexible phase adjustment technique } is valuable in meeting { TAIL ~ various timing requirements } in a source synchronous memory controller
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH