A serial data transmission unit which can freely set {HEAD ~ a holding interval T} of {TAIL ~ the final bit} of transmitted data 
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A serial data transmission unit which can freely set { HEAD ~ a holding interval T } of { TAIL ~ the final bit } of transmitted data
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH