MMC Data_LOGGER
https://www.silabs.com/Support%20Documents/TechnicalDocs/an189.pdf

SD Card - Wikipedia
http://en.wikipedia.org/wiki/Secure_Digital_card

SD card specification (SPI interface)
http://downloads.amilda.org/MODs/SDCard/SD.pdf

Typicke pripojenie SD karty k CPU
http://www.keil.com/mcbstm32/mcbstm32-schematics.pdf

Priklad efektivneho kodu pre rozne SPI mody a procesor 8051
http://www.maxim-ic.com/app-notes/index.mvp/id/3524


FLASH memories - wikipedia
http://en.wikipedia.org/wiki/Flash_memory

NOR vs NAND Flash
http://www2.electronicproducts.com/Choosing_flash_memory-article-TOSHIBA-apr2004-HTML.aspx

http://www.toshiba.com/taec/components/Generic/Memory_Resources/NANDvsNOR.pdf