{HEAD ~ The DMAC} 102 reads {TAIL ~ the data} to be processed out of the memory 108 by direct memory access 
{ HEAD ~ The DMAC } 102 reads { TAIL ~ the data } to be processed out of the memory 108 by direct memory access
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH