Article View: comp.sys.sun.hardware
Article #2289Re: Sun's ZS chips (was Re: Old Sun question - HELP!!!!!)
From: Gary Mills
Date: Mon, 11 Jan 1993 00:59
Date: Mon, 11 Jan 1993 00:59
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In <350@gradient.gradient.com> ddj@gradient.gradient.com (david johnson) writes: >If the TIOCSET* ioctls were finally obsoleted, and the baud >rate could specified as an integer, the SCC could be programmed >for much faster rates. For receive, perhaps. The SCCs only have a one-byte transmit buffer, so they must interrupt for each character transmitted. That takes a lot of CPU cycles, not to mention making it sensitive to the load on the machine. -- -Gary Mills- -Networking Group- -U of M Computer Services-
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Newsgroups: comp.sys.sun.hardware Path: arc1-ca.pugleaf.net!sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!mills From: mills@ccu.umanitoba.ca (Gary Mills) Subject: Re: Sun's ZS chips (was Re: Old Sun question - HELP!!!!!) Message-ID: <C0o02K.7os@ccu.umanitoba.ca> Sender: news@ccu.umanitoba.ca Nntp-Posting-Host: altair.cc.umanitoba.ca Organization: University of Manitoba, Winnipeg, Canada References: <rcaldwel.726296968@ponder> <1993Jan6.115253.19572@elroy.jpl.nasa.gov> <1993Jan9.022926.26234@siemens.com> <1993Jan10.150522.8160@sol.ctr.columbia.edu> <350@gradient.gradient.com> Date: Mon, 11 Jan 1993 00:59:07 GMT Lines: 13