In {HEAD ~ one embodiment} of the invention, the output circuit is responsive to assertion of a control signal to selectively enter {TAIL ~ a high impedance state} 
In { HEAD ~ one embodiment } of the invention , the output circuit is responsive to assertion of a control signal to selectively enter { TAIL ~ a high impedance state }
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL