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From: resnicks@netcom.UUCP (Steve Resnick)
Newsgroups: comp.os.msdos.programmer
Subject: Re: U8250 Questions
Message-ID: <20993@netcom.UUCP>
Date: 15 Jan 91 22:37:33 GMT
References: <2535@sparko.gwu.edu> <1991Jan15.160612.7474@cpqhou.uucp>
Organization: Netcom- The Bay Area's Public Access Unix System {408 241-9760 guest}
Lines: 24

In article <1991Jan15.160612.7474@cpqhou.uucp> randys@cpqhou.uucp (Randy Spurlock) writes:
[Lots of stuff delete]
>	You should get a data sheet on the Intel 8250 or any other 
>company that made and 8250 compatible device, i.e., Motorola, Western
>Digital, etc. The data sheet, although not the best written or easy to
>understand usually has the most complete information.
>

Whoa! The INTEL 8250 is a UART, but it is NOT INS8250 compatible. What you
want is the Data sheet for an INS8250 or WD8250, I don't know whether
Morotola makes a PC compatible 8250 or not, but the Intel unit is NOT the
same device. (I found this out by writing a serial driver using the
Intel data sheet from their Microprocessors and Peripherals handbook and
had to undo a lot of code. *sigh*)

- Steve

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