In {TAIL ~ another embodiment}, serially connected signals can be controlled based on a chip SPID , and whether the signal is an upstream or a downstream type of {HEAD ~ signal} 
In { TAIL ~ another embodiment } , serially connected signals can be controlled based on a chip SPID , and whether the signal is an upstream or a downstream type of { HEAD ~ signal }
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH 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