• Communication to eMMC (embedded multi-media card) memories

    • Communication using 1, 4, or 8-data lines

    • Legacy MMC (multi-media Card) and High-speed SDR (single data rate) mode supported

  • Communication to SD-cards

    • Communication using 1 or 4-data lines

    • Default- and High Speedmode supported

  • Communication to SDIO cards

  • Communication support using different levels of direct memory access (DMA) support

    • Programmed Input Output (PIO) - operation without DMA

    • Single operation DMA (SDMA)

    • Advanced DMA-2 (ADMA2)

    • Advanced DMA-3 (ADMA3)

  • Provides 1 KB SRAM for buffering up to two 512-Byte blocks

  • Compliant to "Embedded Multi-Media Card (eMMC) Standard (5.1)"

    with the following exceptions:

    • No dual voltage eMMC support, only high voltage (3.3 V)

    • No high clock frequencies for HS200/HS400, only 0-50 MHz

    • No large 4-kB sector device support, only 512-B sectors

    • No DDR (Double Data Rate) signaling only SDR (Single Data Rate) signaling

    • No data strobe support

    • No high speed DDR, HS200 or HS400 speed mode support, only Legacy MMC card and High Speed SDR

    • No “Interrupt” mode, only “device identification”, “data transfer” and “inactive” mode

    • No clock tuning support

    • No multi device support

    • No Command Queuing Engine (CQE)

  • Compliant to “SD Specifications Part A2 SD Host Controller Standard Specification v4.20” with the following exceptions:

    • No Multi Slot Support , only single cards

    • No suspend and resume functionality

    • No Sampling Clock Tuning supported, only Default Speed mode and High Speed mode supported

    • No Suspend or Resume operation in an SDIO card

  • Compliant to “SD Specifications Part 1 Physical Layer Specification v6.00” with the following exceptions:

    • No UHS-II (Ultra High Speed) voltages, only high voltage SD memory card

    • No UHS-I and UHS-II speed modes, only Default Speed mode and High Speed mode

    • No physical write protection switch support

    • No card insertion detection, only sensing of pull-up on DAT line

    • No SPI card support

  • Compliant to SD Specifications Part E1 SDIO Specification Version 4.10