topic To use i.MX6DQ SDIO with 1.8V/25MHz (not UHS). in i.MX Processors

To use i.MX6DQ SDIO with 1.8V/25MHz (not UHS).

satoshishimoda — Mon, 11 Jul 2016 10:34:55 GMT

Hi community,

Our customer have a question about i.MX6DQ SDIO.

They want to use SDIO with 1.8V to connect a Wi-Fi module.

Then, I found the following posts talk about 1.8V SD/MMC.

But I feel the solutions in these posts are the one for when use the SABRE AI schematics.

Our customer don't need SD voltage switching and UHS, and will use 1.8V SDIO with 25MHz.

In this case, what is required to use SDIO = 1.8V?

Best Regards,

Satoshi Shimoda

igorpadykov — Tue, 12 Jul 2016 00:26:16 GMT

Hi Satoshi

it is sufficient to power i.MX6 NVCC_SDx (providing power for this

interface) with 1.8V.

Best regards

igor

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satoshishimoda — Tue, 12 Jul 2016 00:38:16 GMT

Hi Igor,

> it is sufficient to power i.MX6 NVCC_SDx (providing power for this

> interface) with 1.8V.

Good.

Thank you for your prompt support.

Best Regards,

Satoshi Shimoda