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Date:      Mon, 27 Sep 2004 14:03:03 +0400
From:      Roman Kurakin <rik@cronyx.ru>
To:        Peter Jeremy <PeterJeremy@optushome.com.au>
Cc:        "M. Warner Losh" <imp@bsdimp.com>
Subject:   Re: cvs commit: src/sys/net if.c
Message-ID:  <4157E557.6080309@cronyx.ru>
In-Reply-To: <20040927093127.GH83620@cirb503493.alcatel.com.au>
References:  <20040924094950.N39925@pooker.samsco.org> <20040925.225150.20525280.imp@bsdimp.com> <20040926162333.GC1164@green.homeunix.org> <200409271243.37300.doconnor@gsoft.com.au> <20040927093127.GH83620@cirb503493.alcatel.com.au>

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Peter Jeremy wrote:

>On Mon, 2004-Sep-27 12:43:29 +0930, Daniel O'Connor wrote:
>  
>
>>Hmm, MS have a circuit diagram ->
>>http://www.microsoft.com/whdc/system/CEC/dmpsw.mspx
>>    
>>
>
>I bumped into that as well.  The innards of the PAL aren't documented
>anywhere that I could see and there seems to be quite a lot of logic
>when the only inputs are the PCI clock and the NMI switch.  (Bloated
>design and undocumented internals - sounds familiar :-).
>
>  
>
>>Pin 42 is #SERR and the other side of it in ground.
>>    
>>
>
>Does anyone with knowledge of the PCI spec know if just shorting #SERR
>to ground will work?  (Assuming that the BIOS/chipset maps #SERR to NMI).
>
>I've used a screwdriver on an ISA slot on several occasions but haven't
>tried it on a PCI bus yet.
>  
>
I wonder if this could solve ISA problem 
http://www.costronic.com/Ev71p.htm :-)

rik






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