AM62L: MMC

JUNZHI LIN

Part Number: AM62L

Tool/software:

Dear Expert,I have a few questions regarding the MMC/SD interface and would like to ask you for your advice.

1、Do all three MMC/SD buses support eMMC 5.1, SD 3.0, and SDIO Version 3.0?

2、What does the content shown in the following picture mentioned in the TRM manual mean? Does it support SD 4.10 and SDIO 4.0? So, should we follow the data manual or the TRM?

1 month ago

0 Anastas Yordanov 1 month ago

TI__Intellectual 1390 points

Hello Junzhi Lin,

I am checking internally the AM62L MMCSD supported standards and will follow up in one day or two.

Thanks

Kind Regards,

Anastas Yordanov

0 peaves 1 month ago in reply to Anastas Yordanov

TI__Guru 63145 points

The next revision of the AM62Lx datasheet will be updated to show with the following list of devices and data transfer modes supported for each MMC instance.

The MMC0 port supports connections to an eMMC device or embedded SDIO device. It does not support removable SD Cards.

The MMC1 and MMC2 ports support connection to a removable SD Cards or embedded SDIO device. They do not support eMMC devices.

Regards,
Paul

0 Kallikuppa Sreenivasa 1 month ago in reply to peaves

TI__Guru**** 195249 points

Hello Junzhi Lin,

JUNZHI LIN said:
What does the content shown in the following picture mentioned in the TRM manual mean? Does it support SD 4.10 and SDIO 4.0? So, should we follow the data manual or the TRM?

For the supported interfaces on the MMC instances please refer to the data sheet.

For the SDIO specifications, please follow the data sheet.

The references to 4.x in the TRM will be updated.

Regards,

Sreenivasa

0 JUNZHI LIN 12 days ago in reply to Kallikuppa Sreenivasa

Prodigy 130 points

Dear Expert, regarding the MMC interface of AM62Lx, does MMC0 support a 1-bit wide data bus or a 4-bit wide data bus? And do MMC1 and MMC2 support a 1-bit wide data bus?

0 Kallikuppa Sreenivasa 11 days ago in reply to JUNZHI LIN

TI__Guru**** 195249 points

Hello Junzhi Lin,

Is this a generic query or do you have an use case for the query.

As a general answer, MMC0 should be able to support 4-bit or 1-bit and MMC1/MMC2 should be able to support 1-bit.

Regards,

Sreenivasa

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AM62L: MMC