Intel® Stratix® 10 Hard Processor System Technical Reference Manual

ID 683222
Date 11/28/2022
Public

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16.1.2. SD Card Support Matrix

Table 124.  SD Card Support Matrix
Device Card Type Bus Modes Supported Bus Speed Modes Supported
Default Speed High Speed SDR12 SDR2537
1 bit 4 bit 8 bit

12.5 MBps

25 MHz

25 MBps

50 MHz

12.5 MBps

25 MHz

25 MBps

50 MHz

SDSC (SD)        
SDHC  
SDXC  
eSD  
SDIO  
eSDIO
Note: The Intel Stratix 10 HPS supports only 1.8V signaling. For flash devices that do not use 1.8V signaling, you must use an external level shifter.
Note:
Although, all device types, except SDSC (SD), support the following bus speed modes, the HPS does not support these modes:
  • SDR50—50 MBps (100 MHz)
  • SDR104—104 MBps (208 MHz)
  • DDR50—50 MBps (50 MHz)
Note: Card form factors (such as mini and micro) are not enumerated in the above table because they do not impact the card interface functionality.
37 SDR25 speed mode requires 1.8‑V signaling. Note that even if a card supports UHS‑I modes (for example SDR50, SDR104, DDR50) it can still communicate at the lower speeds (for example SDR12, SDR25).