[Coco] Is this really a hard disk controller?

[Tony]

On Thu, 2009-01-29 at 21:12 -0500, Art Flexser wrote:

> No, the HDS definitely has one 24-pin and one 28-pin socket;  the 28-pin one can

> be jumpered, if desired, to accept a 24-pin ROM.

> 

> Perhaps you are counting pins on the chip that is plugged into it, rather than

> the socket itself.

> 

> Art

> 

> On Thu, 29 Jan 2009, Darren A wrote:

> 

> > On 1/29/09, Art Flexser wrote:

> > > Yes, it's a floppy controller, capable of accommodating either a 24-pin or a

> > > 28-pin EPROM.

> > 

> > 

> > Close examination of the photo reveals that both ROM sockets are 24 pin.

> > 

> > This doesn't look like other HDS floppy controllers I have seen. The

> > board doesn't have a solder mask. The FDC chip is a Fujitsu MB8877A.

> > Some kind of prototype maybe (possibly even High Density)?

> > 


If you look at eBay item 220339682755, you will see an HDS I sold a few
weeks ago. It is the one with the 24-pin and 28-pin sockets.

Was there maybe an early unit with 2 24-pin sockets?
The one on the OP's posted eBay listing DEFINITELY has 2 24-pin sockets.

Whatever the version, it definitely is *NOT* a HDD controller - '8877A
is a FDC chip, as others have mentioned.

Tony