28 Jul
2006
28 Jul
'06
9:54 p.m.
On 7/28/2006 at 9:16 PM Roy J. Tellason wrote:
It sure is! :-)
What little reading I've done about that stuff has explained some of it,
and I've seen some references in the chips info to various sync modes and
such, but when and where is that sort of thing used? What's it good for?
In a nutshell, sync is great for pushing large blocks of data at nearly the
maximum speed of a comm link. Messages are very formalized and there are
no start, stop or parity bits. The clock is recovered from the data stream
by the modem, not the USART, so when a transmitter has the line it's always
transmitting (the SYN 1/6 character is the "filler" character).
When it works, it's great.
Cheers,
Chuck