has somebody used the Diskonchip of M-systems?.. I have a chip, but i don't know how to read or write the memory... how you do this?...
Have you looked at their website for Design Guides, App Notes, etc? If it's IDE, you could try looking at http://www.8052.com/users/jsno - which is an 8052 interface to an IDE device (a CD-ROM, in fact)