A two wire dedicated diagnostic data port in an integrated circuit provides visibility for {TAIL ~ all internal functions} of {HEAD ~ the integrated circuit} 
A two wire dedicated diagnostic data port in an integrated circuit provides visibility for { TAIL ~ all internal functions } of { HEAD ~ the integrated circuit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD