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Subject: Re: RS422 & synchronous transmission
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X-Original-Trace: 1 Nov 2002 13:23:56 +1000, 18.104.22.168
Date: Fri, 01 Nov 2002 02:24:01 GMT
NNTP-Posting-Date: Fri, 01 Nov 2002 13:24:01 EST
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On Tue, 29 Oct 2002 23:58:41 -0800, "Jeroen" wrote:
>"Jim Backus" wrote in message
>> Any serial comms experts out there able to answer this:
>> I'm thinking about synchronous NRZ data with an accompanying 1 x
>> Similarly looking at the receive data, should the space to mark
>> transition of the clock be spaced half a bit period into each bit?
>Data needs to be stable before you can clock it into a D-flipflop. So it's
>better that the clock comes a bit later than the data, half a bit space
>would be ok.
I agree. But what if the data is asynchronous - i.e.. it can stop & start at
any time period - how does one then sync the clock to the data & still get the
half-bit delay between the clock signal & data
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