P2020 MMC interface

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P2020 MMC interface

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arvinchen
Contributor I

P2020可以使用eMMC 4.41、4.5、5.0的芯片吗?若不能,可以支持到哪个版本?

Can P2020 use eMMC 4.41, 4.5, 5.0 chips? If not, which version can be supported?

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yipingwang
NXP TechSupport
NXP TechSupport

Hello arvin chen,

The P1020/P2020 documentation says

“Compatible with the following specifications:

“- MultiMediaCard System Specification, Version 4.2 (http://www.mmca.org)”

" Designed to work with SD Memory, SDHC memory, miniSD Memory, MMC, MMCplus, and RS-MMC cards." I.e. it does not mention eMMC. It is because it was not tested against eMMC specifications or any particular eMMC device. (I believe that MMCplus was introduced in MMC specs ver 4.0 while eMMC specs corresponds to ver. 4.3)

However eMMC is compliant with the MMC specification. So while eMMC device is backward compatible to the MultiMediaCard System Specification, ver. 4.2 it can be used.


Have a great day,
TIC

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