SD/SDIO Card Interface

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
Release Date
2.4 English

   Operating mode with maximum clock rate:

°   Standard mode (19 MHz)

°High-speed mode (50 MHz)

°SDR12 (25 MHz)

°SDR25 (50 MHz)

°SDR50 (100 MHz)

°   SDR104 (200 MHz)

°   DDR50 mode (50 MHz)

   Up to 800 Mb/s data rate using four parallel data lines (SDR104 mode).

   Cyclic redundancy check CRC7 for command and CRC16 for data integrity.

   Variable-length data transfers.

   Performs read wait control, suspend/resume operation SDIO card.

   Designed to work with I/O cards, read-only cards, and read/write cards.

   Supports read wait control, suspend/resume operation.