SD host controller is a standard memory controller to access Secure Digital (SD) card which is commonly used in embedded devices and consumer electronics. The SD Host Controller core complies with the SD Host Controller Specification v2.00 and Physical Layer Specification v2.0 with 32 bits system bus and built-in ADMA. The module does not support EMMC and SDIO protocols.

SD Host Controller Block Diagram

Features

• 1-bit, 4-bit SD modes
• SDR12, SDR25 and SDR50 speed modes
• Supports SD card detection
• ADMA transfer and memory-mapped transfer
• Single block and multi-block transfer
• Cyclic redundancy check (CRC) for command and data
• Programmable data buffer
• AXI4-lite interface for AXI4-lite and AXI4 for memory transfer
• Supports interrupt on command and data completion
• Includes example designs targeting the Trion® T120 BGA576 Development Board
• Supports all Trion and Titanium FPGAs