DADA SOM/DADA Hardware/Peripherals/MMC

History
Issue Date	Notes
2025/07/08	First release

Peripheral MMC

Each MMCSD instance - in the DADA SOM - includes one MMCSD Host Controller. A host controller can support eMMC and/or SD/SDIO. Up to 2 (two) MMCSD ports are available in the DADA SOM.

Description

• Each MMCSD module has the following features:
  • Advanced DMA
  • System Bus Interface:
    • 64-bit data width (host interface)
    • 64-bit address
    • Clock asynchronous to MMCSD clock (MMCi_CLK)
  • Configuration Bus Interface:
    • 32-bit data width (target interface)
    • Linear incrementing addressing mode
    • 32-bit aligned accesses only

• MMCSD Host Controller - eMMC interface (see the device-specific AM62x datasheet for supported instances):
  • Multi-Media Card Support
    • eMMC Electrical Standard 5.1 (JESD84-B51)
    • Backward compatible with earlier eMMC standards
    • Legacy MMC SDR
    • High Speed SDR
    • High Speed DDR
    • HS200 SDR

• MMCSD Host Controller - SD/SDIO interface (see the device-specific AM62x datasheet for supported instances):
  • Secure Digital Card Support
    • Backward compatible with earlier SD card specifications
    • SD Host Controller Standard Specification 4.10 and SD Physical Layer Specification v3.01, SDIO Specification v3.00
    • Default Speed mode
    • High Speed mode
    • SDR12, SDR25, SDR50, DDR50 (UHS-I 1.8 V)