What is the Difference between ESDHC and USDHC?

[vinothkumars]

Dear All,

I want to interface EMMC using USDHC. But, I know that the USDHC and ESDHC both are in EMMC only. I know ESHCD(Enhanced Secured Digital Host Controller). But, I don't know what is the full form of USDHC and How is difference from ESDHC.

Regards,

VinothS

[joanxie · Accepted solution]

uSDHC means Ultra Secured Digital Host Controller, for uSDHC detailed information, one can refer to the Chapter 67
Ultra Secured Digital Host Controller (uSDHC) as below,

https://www.nxp.com/docs/en/reference-manual/IMX6DQRM.pdf 

for eSDHC, one can refer to the chapter 29 Enhanced Secured Digital Host Controller

https://www.nxp.com/docs/en/reference-manual/iMX53RM.pdf 

one can compare with them in every detail