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Date: Sun, 23 Jun 1996 15:25:17 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199606230525.PAA26674@godzilla.zeta.org.au>
To: bde@zeta.org.au, wilko@yedi.iaf.nl
Subject: Re: HELP: serial port grief on Asus P55TP4N
Cc: FreeBSD-hackers@freebsd.org, revr@cadre.nl
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>> Uucp checksum errors are known to be caused by bugs in the UMC i/o
>> chip which is found in some ASUS motherboards (e.g. the P55TP4XE
>> rev.2.4).  The UARTs lose sync when their speed is set while data

>Bruce, are you sure about the P55TP4XE? I just spent some time with a
>flashlight to inspect my XE and found a SMC FDC37C665IR chip that
>(looking at the etch wiring) seems to (also) control the serial lines.
>I could not find a UMC chip on my mainboard.

I have one.  It switched from SMC to UMC in rev.2.4.

Bruce