A couple of things . . . first of all, the WD1100 came well before the 1010
which preceded the 2010 by about a year. All the information you need about
either of these chips is contained in the datasheet/appnote set published by
WD for their WD100x-0x series of controllers. Careful, now, because the
earlier controllers were different, i.e. the WD1000-55 came before the
WD1000-05. The '-55 was the one with the WD 5-chip chipset with various
designations, but accompanied by the 8X300 microcontroller.
There's a 1010 on nearly every one of the early PC/XT and PC/AT controllers.
The designation for one of the PC/XT controllers which was quite well
documented, was WD1002-WX2. There's nothing mysterious about these
controllers. They are dirt simple to program, to wit, I programmed the
things myself instead of having someone else do it. The device has a
"register file" which you must completely rewrite each time you issue a
command and it has a buffer which you must fill before writing and empty
after reading data and before checking status. The board has its own
counters which trigger the operation in question once you've performed the
requisite number of reads and writes. The 1015, by the way, is an 8041 (2)
with Western's code in it.
I have several different versions of this chip's application chipset, so
it's not easy to see what's what. One thing's for sure, though, and that's
that the 1010 definitely replaced the 5-chip set used on the 8X300-based
controllers.
The 2010 is an enhanced, error-correction-support-capable version of the
1010. It works more or less the same in other respects, but has a longer
correction code which makes it capable of more than just complaining there's
been an error.
I'll look around to see if I have anything beyond an old data book from
Western. I once kept all these devices' data sheets as though my life
depended on it, which it once did, more or less, . . . at least my diet . .
. , so I may actually still have them.
Western abruptly quit sending out data on the chips when they went from
supplier to competitor for those of us in the controller business. That
was, I believe, in about 1984.
Dick
-----Original Message-----
From: Jeffrey l Kaneko <jeff.kaneko_at_juno.com>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Friday, May 07, 1999 10:26 AM
Subject: WD Chipset info (Was: Listserve Traffic)
>Guys:
>
>Well, actually, my concern was that maybe I'm not getting all of
>my mail (either that, of I've pissed off alot of people, and don't
>know why).
>
>Anyways, does anybody out there have a 'long form' spec/application
>sheet for the WD-2010 or the WD-1010 HDC chip? There is a 'short'
>(read: Incomplete) sheet in the old 1983 catalog, but it is missing
>some information.
>
>ALso, if someone has info on HDC devices made by WD after 1983
>(the WD-1100 comes to mind, for example), that would be appreciated
>also. Let me know what you got, and I will be happy to pay for
>postage & duplication (your $6.50 is in the mail Joe! :^) ).
>
>WD devices are as common as fleas on a dog, but docs seem to be
>rather scarce.
>
>Thanks!
>
>
>Jeff
>
>
>On Fri, 7 May 1999 15:05:58 +0100 Philip.Belben_at_pgen.com writes:
>>
>>
>> > Is it just my imagination, or has traffic on this Mailing
>> > List gone like, *way* down? I used to get upwards of 60+
>> > messages a day, now I'm only getting less than half that.
>>
>>
>> If you want more messages, here's another :-)
>>
>> In fact, I am still getting around 60 messages a day from Classiccmp
>> at the
>> moment, but this is a lot easier to cope with than the 100+ we had a
>> week or two
>> ago. Especially since my boss doesn't like me reading them in work
>> time (he's
>> off with a bad back today...)
>>
>> Philip.
>>
>>
>>
>>
>>
>
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Received on Fri May 07 1999 - 20:37:17 BST