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From: jjj@blob.hut.fi (Joni Jaakko J{rvenkyl{)
Newsgroups: comp.dcom.modems,sci.electronics
Subject: Re: UARTS for speed...
Keywords: UARTS, 8250, 16450, 16550A
Message-ID: <1990Nov21.180718.27655@santra.uucp>
Date: 21 Nov 90 18:07:18 GMT
References: <1990Nov21.145421.23315@elroy.jpl.nasa.gov>
Sender: news@santra.uucp (Cnews - USENET news system)
Reply-To: jjj@niksula.hut.fi (Joni Jaakko J{rvenkyl{)
Organization: Helsinki University of Technology, Finland
Lines: 22

In article <1990Nov21.145421.23315@elroy.jpl.nasa.gov> cyamamot@kilroy.jpl.nasa.gov (Cliff Yamamoto) writes:
>I've been running my serial line at 38.4Kbaud on my 386 clone for a few

>Can anyone tell me if the 8250, the 16450 and the 16550A are pin-for-pin
>interchangable?  I'm not sure if I have the 8250 or the 16450, but I'd like
>to eventually plug in a 16550A.  Also do all three share the same port and
>programming characteristics?  Are 16550A readily available?

Yes they are interchangeable.

You do NOT want a 16550AN to a 386 clone when running at 38.4, but you DO
want a 16550AFN. THat F stands there for Fast.

Ok, that is high-end a??hole talk, but anyway, there is a difference between
AN and AFN. And when you can get 16550AFN for about 15$ there's no reason
for not buying it.

--
jjj@niksula.hut.fi
jjj@otax.tky.hut.fi

fire me, fire					until you die