{TAIL ~ CHRDY} is a signal which becomes “H” upon completion of {HEAD ~ an initialization operation} of all internal circuits after turning on a power supply 
{ TAIL ~ CHRDY } is a signal which becomes “ H ” upon completion of { HEAD ~ an initialization operation } of all internal circuits after turning on a power supply
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH