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# AVR® UC3™ Series Software Framework: SD/MMC driver

Copyright © 2007 Atmel Corporation

## Introduction

The SD/MMC driver uses SPI or MCI interfaces to handle SD or MMC memory cards.

## SD/MMC Driver through the SPI

The driver is composed of sd_mmc_spi.c, sd_mmc_spi.h, sd_mmc_spi_mem.c and sd_mmc_spi_mem.h.

One example is available: EXAMPLE: Check if a card is present, then copy 3 blocks of 512 Bytes through the PDCA to internal RAM. The software displays the data to the serial output.,

## SD/MMC Driver through the MCI

The driver is composed of sd_mmc_mci.c, sd_mmc_mci.h, sd_mmc_mci_mem.c and sd_mmc_mci_mem.h.

One example is available: EXAMPLE: Check if a card is present, then copy 1 blocks of 512 Bytes to internal RAM. The software displays the data to the serial output.,

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