[RESPONDED] Question regarding the UHS-II support of the new full-sized SD Expansion Card

I’ve inquired Framework Support the following question:


Hello, the product description of your new full-sized SD Expansion Card claims:

The SD Expansion Card supports UHS-I and UHS-II

However, according to an external info source, the card reader controller chip that the expansion card uses seems to be Genesys Logic’s GL3230, which (according to its Features page https://www.genesyslogic.com.tw/en/product_view.php?show=70), only supports UHS-I speed.

Are there any errors in the product description, or it is that the SD Expansion Card uses a different controller chip(e.g. the GL3230S) that supports UHS-II speed cards?

Thanks.

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What’s the source for it using a Genesys Logic GL3230?

It is mentioned in the pull request that introduce the firmware upgrade support to the fwupd project:

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Looks like the driver supports multiple gl32xx series chips. I’d guess that he just accidentally truncated the S off the part number. Seems more likely than Framework’s description just wrongly adding UHS-II.

Tho I understand you want confirmation & presumably contacted support with the question already.

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Yeah, that’s what I’m suspecting as well.

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There is a video interview with Nirav where he says it does UHS-II
So, I don’t think the UHS-II is a typo.

Timecode: 05:55

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we use a GL3232S controller in the SD Expansion card which supports UHS-II

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Thanks for the info (as well as the support ticket response)! Yeah, that’s a sensible choice for the SD Expansion Card.

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Sorry, my mistake. I updated the pull request.

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That’s very interesting. I was actually considering using the GL3232S in some of my own expansions card ideas. However, the documentation seems to be rather limited. Do you have access to better documentation? Is it under NDA? How hard was it to obtain it? Or did you just figure it out on your own? Is there any information you can share? Or answer a few simple questions?

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