SoloX NVCC_HIGH and NVCC_LOW SD3

[scottgauche]

Hi,

If the SD3 interface is not used, is it okay to leave NVCC_HIGH and NVCC_LOW unpowered?

The only note I can find about leaving these unpowered is note 7 on page 26 of IMX6SXIEC data sheet that states:

"All digital I/O supplies (NVCC_xxxx) must be powered under normal conditions whether the associated I/O pins are in use or not and associated IO pins need to have a Pullup or Pulldown resistor applied to limit any floating gate current."

But this note doesn't reference NVCC_HIGH and NVCC_LOW.

Thanks,

Scott

[igorpadykov]

Hi Scott

expression "All digital I/O supplies (NVCC_xxxx) must be powered.."

relates to all power supplies beginning with NVCC_, so NVCC_HIGH and NVCC_LOW

should be powered too.

Best regards

igor

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[scottgauche]

Thanks Igor,

Is it okay to power both NVCC_HIGH and NVCC_LOW at the same voltage (3.3V in our application)?

-Scott

[igorpadykov · Accepted solution]

no, power for NVCC_LOW should be 1.8V

[scottgauche]

Bump