About EMMC voltage

[zongyuanliu]

Hi, guys. I am reading emmc 5.1 spec now. However, I am confused with voltage of emmc. Please look at this image

What is the meaning of positive supply voltage ground?

Why this supply voltage ground is positive, not zero?

Why it adds this supply voltage ground in this spec?

I am looking for your answers.

Thanks.

[art]

Actually, this is just the confusing description for the Ground pins. In fact, the Vss and Vssq pins are just the Ground pins for the corresponding supply voltages, Vcc and Vccq, respectively.

Have a great day,
Artur

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------