AURA SOM/AURA Hardware/Peripherals/SDIO

From DAVE Developer's Wiki
Jump to: navigation, search
Issue Date Notes
2023/09/13 First release

Peripheral SDIOs[edit | edit source]

The Ultra Secured Digital Host Controller (uSDHC) provides the interface between the host system and the eMMC, SD card, and SDIO. The SDIO interfaces available on AURA are based on iMX93 SoC.

AURA SOM provides up to three SDIO interfaces available for an external memory device connection:

  • the SD1 interface is used for the on board eMMC flash (but it is optionally available on the SO-DIMM connector)
  • the SD2 interface is available on the SO-DIMM connector
  • the SD3 interface is optionally for the on board SPI flash (otherwise it is available on the SO-DIMM connector)

Description[edit | edit source]

The SDIOs port supports the following standards and features:

  • Conforms to the SD Host Controller Standard Specification version 2.0/3.0
  • Compatible with the eMMC System Specification version 4.2/4.3/4.4/4.41/4.5/5.0/5.1
  • Compatible with the SD Memory Card Specification version 3.0 and supports the Extended Capacity SD Memory Card
  • Compatible with the SDIO Card Specification version 2.0/3.0
  • Supports 1-bit/4-bit SD and SDIO modes, and 1-bit/4-bit/8-bit MMC modes
  • Card bus clock frequency up to 208 MHz

Pin mapping[edit | edit source]

The Pin mapping is described in the Pinout table section