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 = 25MHz)
• Support for SD/SDIO High Speed (Maximum SDCLK Frequency = 50MHz)
• Support for e.MMC Default Speed (Maximum SDCLK Frequency = 26MHz)
• e.MMC Boot Operation Mode Support
• Support for Block Size from 1 to 512bytes
• 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