Good haul of old pc stuph

[Allison]

>
>Subject: Re: Good haul of old pc stuph
>   From: "Chuck Guzis" <cclist at sydex.com>
>   Date: Thu, 15 Dec 2005 09:43:05 -0800
>     To: cctalk at classiccmp.org
>
>On 12/15/2005 at 9:52 AM Allison wrote:
>
>>All it took was a 8bit/16bit trnaslation usinga pair of latches
>>and some buffers. the only part of IDE thats actually 16bits 
>>wide is data transfers, the registers are bytes. The MFM 
>>controllers of the time had the same register layout.  The 
>>WD1003 was likely the best known ISA16 (WD1002 was the ISA8
>>version) controller for MFM and it's just like talking to 
>>an IDE drive.
>
>Quite a number of the early IDE drives would also support 8 bit data
>transfers if IOCS16- wasn't pulled low.  Somewhere on the web, there's a
>site from someone who's compiled a list of these.   Many early sound cards
>included an extra IDE port for the purpose of hooking up a CD drive.

List them, please.  I've found only two flavors of 3.5" IDE from WD and 
thats it.  Best I've seen is it was spec'd in but almost never implmented.

I have a large (n>20) selection of 500mb and smaller down to 20mb IDE 
drives and it's amazing so few that support 8bit data.


Allison