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