{HEAD ~ A data processing system} has {TAIL ~ a single configurable write buffer} within a peripheral interface unit that is shared among multiple peripherals 
has
{ HEAD ~ A data processing system } has { TAIL ~ a single configurable write buffer } within a peripheral interface unit that is shared among multiple peripherals
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH