[Coco] Is this really a hard disk controller?
tonym at compusource.net
Thu Jan 29 21:18:37 EST 2009
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.
> 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.
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