The routing data generation circuit generates and adds {TAIL ~ routing data} to {HEAD ~ the data frame} received by the buffer 
The routing data generation circuit generates and adds { TAIL ~ routing data } to { HEAD ~ the data frame } received by the buffer
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH