28 Nov
2005
28 Nov
'05
8:15 p.m.
Dwight K. Elvey wrote:
Nope and I'm sure of is as I'm in the middle to sorting out a
non working MDS-AD3!
From:
"Allison" <ajp166 at bellatlantic.net>
>Subject: Re: Pinout for SED9421
> From: "Dwight K. Elvey" <dwight.elvey at amd.com>
> Date: Mon, 28 Nov 2005 10:46:28 -0800 (PST)
> To: cctalk at classiccmp.org
>
Hi Allison
I'm not contridicting, just pointing out some cases
to support. As I recall, the N* controller also used
the synchronous serial chip. I don't know of a case
that used a async part. All of these were used on
hard sectored disk. I don't know of any soft sectored that used
serial
chips. I suspect that it is because these depended
on using illegal data clocking sequences in order
to mark sectors. This would require more external
circuits.
There is nothing to stop that as the data de and can also do a
little majik on those marks. May not make as much sense but
doable.
Allison