a bus, including {HEAD ~ a signal line} supplied with {TAIL ~ a pull up voltage}, and for transmitting a predetermined signal 
supplied with
a bus , including { HEAD ~ a signal line } supplied with { TAIL ~ a pull up voltage } , and for transmitting a predetermined signal
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH