One such function is the prepending of the protocol symbol to the first data byte of the message frame that occurs in {HEAD ~ response} to {TAIL ~ handshaking} of the MCU 
to
One such function is the prepending of the protocol symbol to the first data byte of the message frame that occurs in { HEAD ~ response } to { TAIL ~ handshaking } of the MCU
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH