Using eMMC on 4 bit SDIO on the Verdin IMX8M Plus

Hi,

For a project we would like to add additional storage on a board, but prefer not to use an sd card slot + sd card.
Is it possible to use an eMMC on a Verdin imx8x plus on the SDIO interface? It is a 4 bit bus compared to the 8 bit used for the on board eMMC and we where wondering if this is an issue?

Best regards,

Rik

Hi @rikte ,

it is definitely possible to do what you intend.

As you can see in the datasheet of the Verdin iMX8M Plus in Chapter 5.14 the second SDIO interface is “Always compatible” and is provided for your exact intention.

I hope this answers your question.

Best Regards
Kevin

Hey @kevin.tx

Thanks for the message, I thought it would be compatible but wanted to be sure before we design a board wiht eMMC on this interface. Thanks for clearing it up.

Best regards,

Rik

Hi @rikte ,

Alright thank you for your message.

I’ll keep the topic open, so if you run into further issues or questions you can post them here.

Have a successful week.

Best Regards
Kevin