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- From: wilken@plains.NoDak.edu (Scott Wilken)
- Newsgroups: comp.dcom.modems
- Subject: Re: 16550 vs. 16550AFN
- Message-ID: <19809@plains.NoDak.edu>
- Date: 20 Aug 92 21:18:56 GMT
- Article-I.D.: plains.19809
- References: <1992Aug18.221918.1@vax1.umkc.edu> <BtAt51.JD8@news.cso.uiuc.edu>
- Sender: Unknown@plains.NoDak.edu
- Organization: North Dakota Higher Education Computing Network
- Lines: 22
- Nntp-Posting-Host: plains.nodak.edu
-
- In article <BtAt51.JD8@news.cso.uiuc.edu> berger@atropa (Mike Berger) writes:
- >eputnam@vax1.umkc.edu writes:
- >you use an external modem, then your computer's hardware (your serial
- >port) has to be able to handle the data rate. When you use an
- >internal modem, you eliminate that potential bottleneck. Who cares
- >what kind of uart is used on an internal modem (or indeed, that one
- >is used at all)? If the modem can handle the maximum data rate,
- >then a different uart chip will make no difference at all. A modem
-
- Uh, since when does an internal modem not have a UART? A modem is still
- a serial device no matter if it is external or internal... You need to
- compound the serial bits inside a UART's register in order to form a
- single byte which is then sent out in parallel over the bus.
-
- Telling someone that he doesnt need a 16550 unless he has an external (assuming
- he needed one for COM overruns in the first place) is assinine..
-
- Scott
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