On Jul 28, 2010, at 1:07 AM, Marcel Birthelmer wrote: > I'd think MMC would be a better choice... eMMC (embedded MMC - MMC =20 > chips permanently fixed to the board) chils are already quite =20 > popular, and support higher max rates (8-bit data, higher frequency, =20 > I think they might even be talking about double-pumping?). Huh? Isn't it the other way around? MMC was first, and SD/SDHC added =20 some pins and parallel modes for faster access? MMC cards seem to =20 have all but disappeared, though in most cases the SD cards are =20 backward compatible. > Plus, no licensing fees for controller manufacturers, just for =20 > implementers (if I remember correctly). The SD licensing issues ARE annoying. BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .