Newsgroups: comp.dcom.modems
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!linus!philabs!crpmks!wizkid!admiral!deano
From: deano@admiral.UUCP (Dean Carpenter)
Subject: FAS 208 ISC Unix 2.2.1 Hauppauge 33MHz 4860 motherboard
Reply-To: deano@admiral.UUCP (Dean Carpenter)
Organization: The Grid/Waffle BBS, 203-661-2873, -1279, -0450, -2967
Date: Tue, 11 Jun 1991 06:20:30 GMT
Message-ID: <V56c41w164w@admiral.UUCP>
Sender: waffle@admiral.uucp (Waffle BBS User Login)

Recently I posted about having problems with the 4860 motherboard frm 
Hauppauge not being able to handle incoming async at 19200 under ISC unix 
2.2.1.  Although FAS reports that it initted two 16450s, the actual UART 
is a PLCC chip from UMC labelled :

        UM82C452L
        9031S
        529660

I've been told that this contains two 16450s, and possibly also handles 
the parallel port.  As this isn't just a simple yank-the-450s and
stick-in-the-16550As case, what can I do ?  Does anyone know exactly what 
this chip is, and more to the point, is there a replacement for it that 
will contain the 16550A FIFOs ?  Any help would be most appreciated :)

Thanks - Dean           (reply to  uunet!areyes!deano)

deano@admiral.UUCP (Dean Carpenter) <uunet!areyes!admiral!deano>
The Grid/Magpie and /Waffle BBS
(HST/V32) 203-661-1279 (PEP/V32) -2873 (V32) -0450 (V29/MNP6) -2967
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