4 May
2004
4 May
'04
6:30 a.m.
A "BREAK" in RS232 is a "signal"
at least in the sense that most
receiving hardware can detect it and do "special things" upon
receipt. I am going from foggy memory, but as I recall, a break is a
long space or mark, longer than any valid word format timing would
normally indicate with no logic state changes inbetween.
Yes. A break condition can be thought of as a very long start bit,
extended for at least ten bit times (and usually a good deal longer) -
I'm not sure what the exact spec is. Indeed, I've seen software
documentation that speaks of generating breaks by changing the speed
and sending 0x00 characters.
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