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