Thanks for replies, Just found SDIO needs licensing for commerical use.
How about MMC ?

I found following links, where PIC is used to read MMC cards. Interface
seems to very simple (SPI).
http://www.compsys1.com/workbench/On_top_of_the_Bench/MMC_Project/mmc_project.html
http://homepage.ntlworld.com/seanellis/mmcserial.htm

I am looking for the other way, My PIC should look like MMC IO device
to the PDA. Is that possible ?

regards,
palani

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