Beaglebone: Does it support UHS speeds of SD Cards

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1

Hi,

Does the beaglebone (AM335x) support UHS speeds (30 MB/s or more) for SD cards that are UHS compatible?

-PJ

2

According to the AM335x Technical Reference Manual [1] page 3535, no.
AM335x supports SD v2.00 of the spec which does not include UHS modes of
operation.

[1]: http://www.ti.com/litv/pdf/spruh73f

-Andrew

3

Thanks Andrew for pointing me out that one!

-Prasant

4

Does the beaglebone (AM335x) support UHS speeds (30 MB/s or more) for
SD cards that are UHS compatible?

According to the AM335x Technical Reference Manual [1] page 3535, no.
AM335x supports SD v2.00 of the spec which does not include UHS modes of
operation.

[1]: http://www.ti.com/litv/pdf/spruh73f

-Andrew

Thanks Andrew for pointing me out that one!

-Prasant

Some UHS cards are compatible, although not at UHS speeds as Andrew indicated.

- Grant

5

Technically, all SD and SDHC cards should be supported. So, all UHS
SDHC marked cards should be supported, just only operating with the SD
v2.00 spec interface (ie: no 1.8 V signaling or higher than 50 MHz
clock).

SDXC is another discussion.

-Andrew