Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!haven!umd5!cgs
From: cgs@umd5.umd.edu (Chris Sylvain)
Newsgroups: comp.sys.intel
Subject: Async interrupt frequency
Keywords: AT, XT
Message-ID: <4551@umd5.umd.edu>
Date: 20 Feb 89 16:51:21 GMT
Organization: University of Maryland, College Park
Lines: 18


[]
I recently asked the folks over in comp.sys.ibm.pc the following question, but
replies seem not to be forthcoming. Perhaps you folks could be of assistance?

I would like to know the expected frequency of interrupts from the AT-type
async I/O chip (16450?) and from the XT-type chip (8250B?) when attempting
to perform 9600 baud serial I/O ..

[
  The XT-type has only a shift register and a holding register, correct?
  The AT-type has a buffer, too ?
]
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