{HEAD ~ The PLCs} are also coupled to the DSP through a separate DMA sharing unit to {TAIL ~ the DSP}, and particularly to the DSP memory 
are coupled to
{ HEAD ~ The PLCs } are also coupled to the DSP through a separate DMA sharing unit to { TAIL ~ the DSP } , and particularly to the DSP memory
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH