start bit
<protocol> A bit which signals the start of transmission of a character
on a serial line. For an RS-423 signal, the line is normally at logical zero
which there is no data and the start bit is a logical one. The zero-one
transition tells the receiver when to start sampling the signal to extract the
data bits.
[Is this upside-down?]
(1995-02-02)
Nearby terms:
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