While in the SFD detect state 406, the processing determines if a valid value of {TAIL ~ the start} of {HEAD ~ frame delimiter} is contained within the received data packet 
While in the SFD detect state 406 , the processing determines if a valid value of { TAIL ~ the start } of { HEAD ~ frame delimiter } is contained within the received data packet
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH