{TAIL ~ The node controller} receives transactions from a master device, communicates with a master device as {HEAD ~ another master device} or as a slave device, and queues transactions received from a master device 
{ TAIL ~ The node controller } receives transactions from a master device , communicates with a master device as { HEAD ~ another master device } or as a slave device , and queues transactions received from a master device
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH