40.2 Features

The following are key features of the SDHC module:

  • Compatibility:
    • SD Host Controller Standard Specification
    • MultiMedia Card Specification
    • SD Memory Card Specification
    • SDIO Specification Version
  • Support for 1-bit/ 4-bit SD/SDIO Devices
  • Support for 1-bit/4-bit e.MMC Devices
  • Support for SD/SDIO Default Speed (Maximum SDCLK Frequency = 25 MHz)
  • Support for SD/SDIO High Speed (Maximum SDCLK Frequency = 50 MHz)
  • Support for e.MMC Default Speed (Maximum SDCLK Frequency = 52 MHz)
  • e.MMC Boot Operation Mode Support
  • Support for Block Size from 1 to 512 bytes
  • Support for Stream, Block and Multi-block Data Read and Write -Advanced DMA and SDMA Capability
  • Internal 2 x 512, (1024) -byte Dual Port RAM
  • Support for both synchronous and asynchronous abort
  • Supports for SDIO Card Interrupt