67.6.2 SDMMC Characteristics

The Secure Digital Multimedia Card Controller (SDMMC) complies with the following specifications:

  • SD Host Controller Standard Specification Version 3.00
  • Embedded MultiMedia Card Specification (e.MMC) Version 4.51
    • e.MMC default speed (maximum SDCLK frequency = 26 MHz)
    • e.MMC high speed (maximum SDCLK frequency = 52 MHz)
    • e.MMC high speed DDR (maximum SDCLK frequency = 52 MHz)
  • SD Memory Card Specification Version 3.00
  • SDIO Specification Version 3.00
    • SD/SDIO default speed (maximum SDCLK frequency = 25 MHz)
    • SD/SDIO high speed (maximum SDCLK frequency = 50 MHz)