Interfacing a Hard Disk Drive to an AT91RM9200 Microcontroller (7 pages, revision B, updated 01/06)
This Application Note describes the hardware and software interface for a Hard Disk Drive. The AT91RM9200 embeds a Compact Flash Glue Logic that can be tuned to support such a peripheral.
http://www.atmel.com/dyn/resources/prod_do...nts/doc6023.pdf
http://www.atmel.com/dyn/resources/prod_do...00HDDDriver.zip

Interfacing a PC Card to an AT91RM9200-DK (7 pages, updated 04/04)
This Application Note describes the implementation of a PCMCIA interface on an AT91RM9200 Development Kit using the EBI. Hardware connections and programming examples to access a CompactFlash Memory Card and a Hard Disk Drive are given
http://www.atmel.com/dyn/resources/prod_do...nts/doc6024.pdf
http://www.atmel.com/dyn/resources/prod_do...are(2files).zip

И еще много чего интересного.
http://www.atmel.com/dyn/products/app_note...p?family_id=605