On Thu, 17 Dec 1998, Dave Celsnak wrote:

> Hello,
> Does anyone have experience interfacing a PIC to a Multi Media Card from
> SanDisk?
>
> I am very interested in using a 4meg Flash memory card from them.

The SanDisk MMCs as used with digital cameras etc, have an almost 100% IDE
compatible interface, with a special micro-miniature connector. afaik they
are not hot pluggable (or rather, require support in the host for
hot-plugging).

They require about the same number of connections for driving, as an IDE
interface, which means a lot of PIC IO pins. imho using a 82C55A for this
is a good idea (or some serial expander to spare PIC pins).

There are also SanDisks with PCMCIA II connection but I've never seen one.

hope this helps,

Peter