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- From: etl1@ns1.cc.lehigh.edu (EMIL THOMAS LERCH)
- Newsgroups: comp.sys.laptops
- Subject: Re: 16550A UARTS -- WHY?
- Message-ID: <1992Nov9.160108.36650@ns1.cc.lehigh.edu>
- Date: 9 Nov 92 16:01:08 GMT
- Organization: Lehigh University
- Lines: 27
-
- In article <1djvltINNj6k@lester.appstate.edu>, STEELEKM@CONRAD.APPSTATE.EDU (Ken
- Steele) writes:
- >
- >
- >What is the big deal about whether a machine has 16550A UARTS?
- >
- >What UART is typically found in a notebook?
- >
- >
- >Ken Steele steelekm@conrad.appstate.edu
- >Appalachian State University steelekm@appstate.bitnet
- >
- A 16550AFN UART is a FIFO buffered UART which doesn't do many users much good.
- It has a buffer in it so it processes interrupts less often, but that doesn't
- really matter unless you're multitasking, and doesn't bother many people
- unless they're running OS/2 or communicating at 9600 bps or faster. It is
- relatively new and it is rare to find one anywhere. I've found that it is
- hard to get unless you know exactly what you want, and even then it can be
- difficult. Dalco Electronics (I don't have the info with me), has I/O cards
- with them, but you can also order just the chip if you want (~$15 U.S.) If
- you're running DOS plain, don't worry about one. If you multitask with
- Desqview, Windows, or OS/2, you may want to consider one as it will speed up
- communications and take away some of the lag time in other apps while
- communicating in the background.
-
- Emil Lerch
- Lehigh University etl1@Lehigh.edu
-