iMXRT1052 eMMC 5.0 interface

AkshayPatil — Tue, 28 Nov 2023 10:21:11 GMT

Does the iMXRT1052 chipset support or have compatibility with the eMMC 5.0 and 5.1 standard for embedded flash storage (eMMC)?

datasheet syas "Fully compliant with MMC command/response sets and Physical Layer as defined in the Multimedia Card System Specification, v4.5/4.2/4.3/4.4/4.41/ including high-capacity (size > 2 GB) cards HC MMC. "

Re: iMXRT1052 eMMC 5.0 interface

EdwinHz — Tue, 28 Nov 2023 21:05:56 GMT

Hi @AkshayPatil,

Technically the RT1052 does support eMMC 5.0 and 5.1, but only because of the fact that these standards are backward compatible. As stated on the following knowledge base article: https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/EMMC-5-0-and-EMMC-5-1-work-on-i-MX6/ta-p/1118941

"The EMMC 4.5 or EMMC 5.0 /5.1 is backward-compatible with eMMC4.4, we can use it in eMMC4.4 mode to enable eMMC4.4 functionality and performance" "Booting from a eMMC 4.5 device or high version is not supported, boot ROM will fall back to the eMMC4.4 standard when a eMMC4.5 or high version capable device is detected."

This was written in the context of a i.MX6 platform, but is also applicable to the i.MX RT family.

BR,
Edwin.

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iMXRT1052 eMMC 5.0 interface

Re: iMXRT1052 eMMC 5.0 interface