DSD 4140 Qbus floppy controller

From: no <oliv555_at_arrl.net>
Date: Thu Jul 5 21:38:09 2001

Michael Davidson wrote:
>
> While searching through my collection of old Qbus cards I just
> discovered that I have a DSD 4140, which appears to be an RX02
> compatible interface to Shugart SA800 or SA850 drives.
>
> The only documentation that I have is a small reference card
> which has the jumper configuration and a summary of the commands
> (from which it appears that the controller also supports
> formatting drives with a write sector command followed by a
> couple of magic values written to the data register).
>
> Does anyone have any more information / documentation for this
> controller?
>
> Since I don't have any 8" Shugart interface drives available
> I'm probably going to have to hook this thing up to a 5.25"
> or a 3.5" drive in order to try it out. I seem to recall that
> constructing a suitable 50 way to 34 way cable adaptor is
> relatively simple, but again I would appreciate references or
> more information from anyone who has done this kind of thing
> recently.
>
> Michael

Don't know if this will help, but I've got the user guide for the
DSD4120. This uses 5-1/4 fdd's for rx01/rx02 emulation.

Send me your address if you want this.

  - nick o
Received on Thu Jul 05 2001 - 21:38:09 BST