Xref: utzoo rec.ham-radio.packet:2435 comp.protocols.tcp-ip.ibmpc:1710 comp.dcom.modems:4569
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!ndcheg!ndmath!nstar!larry
From: larry@nstar.UUCP (Larry Snyder)
Newsgroups: rec.ham-radio.packet,comp.protocols.tcp-ip.ibmpc,comp.dcom.modems
Subject: Re: KA9Q and serial rs232 lines
Summary: 16550
Message-ID: <111032@nstar.UUCP>
Date: 27 Sep 89 00:08:56 GMT
References: <17680@bellcore.bellcore.com> <302@van-bc.UUCP>
Organization: The Northern Star, Notre Dame, IN, USA
Lines: 17

> Do you mean I can physically replace the 8250 on my serial board with
> a 16550?  Wouldn't there be some trouble with the difference between
> edge and level triggered interrupts?

The 16550A is a direct replacement for the 8250 and 16450.         

> Has anyone actually tried this, and how did the 16550 perform compared
> to the 8250?

The 16550A chips are worth the cost of the chip in high speed applications
(greater than 9600 baud).  My machines' throughput on the serial lines 
increased by 40% after replacing the 16450 chips with 16550A's. 

-- 
Larry Snyder                               uucp:iuvax!ndcheg!ndmath!nstar!larry
The Northern Star Usenet Distribution Site                   Notre Dame, IN USA