home *** CD-ROM | disk | FTP | other *** search
- Path: morris.vip.best.com!user
- From: morris@best.com (Paul Morris)
- Newsgroups: comp.dcom.modems
- Subject: Re: Does any 28.8 modem have a built-in 16650UART chip
- Date: Sun, 14 Apr 1996 21:07:37 -0700
- Organization: Best Internet Communications
- Distribution: world
- Message-ID: <morris-1404962107380001@morris.vip.best.com>
- References: <4ka0cb$5m7@newshound.csrv.uidaho.edu> <4kouq7$cdk@news.xs4all.nl> <4ks998$pbb@news.tricon.net>
- NNTP-Posting-Host: morris.vip.best.com
-
- In article <4ks998$pbb@news.tricon.net>, cooperst@tricon.net (Mark
- Cooperstein) wrote:
-
- > In article <4kouq7$cdk@news.xs4all.nl>, vwc002@xs4all.nl (Harm Lok) wrote:
- > >In article <4ka0cb$5m7@newshound.csrv.uidaho.edu>, ma@cs.uidaho.edu
- > >says...
- > >>
- > >>Hi:
- > >> Some body told me that any 28.8 modem should have a built in
- > >high speed
- > >>UART chip such as 16650. Is it true ?.
- > >>
- > >>
- > Sam,
- > why would any internal modem need a UART 16550/16650?? A uart is a
- > device that can change serial data to parallel data. External modems need
- > UARTS, internal modems should not as they are already sitting on a parallel
- > bus!!
- >
- > Mark
-
-
- UARTs also contain memory buffers which help to prevent dropped bytes
- due to irregular speeds. If you look at the packaging of internal modems,
- most of them claim to have builtin UARTs.
-