Re: UART Initial state

Frank Buss

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Posts: n/a

07-08-2008, 07:00 AM

svyamuna wrote:

> can anyone tell me what should be the potential at the tx and rx lines of
> uart at initial state.(whether idle or known state) i read somewhere that
> at known state the potential diff is 5v, then the receiver at the other end
> can view it as a valid byte as anything potential above 2v is considered as
> a valid data. pl explain

http://en.wikipedia.org/wiki/RS-232#Voltage_levels

--
Frank Buss,
http://www.frank-buss.de, http://www.it4-systems.de

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