{TAIL ~ The first TAP controller} enters an idle state and its control signal is gated to hold {HEAD ~ the first TAP controller} in the idle state until the second TAP controller enters the idle state 
{ TAIL ~ The first TAP controller } enters an idle state and its control signal is gated to hold { HEAD ~ the first TAP controller } in the idle state until the second TAP controller enters the idle state
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH