Do All NVCC need to be powered?

[kbell_hardware]

Hello,

I'm wondering if i am not using any pins from an entire NVCC power group, can i ground/float the NVCC connection and possibly save on power? Specific connections for unused power groups are mentioned in the documentation but they do not address the NVCC groups.

Using the IMX6Q

Thanks,

Kevin

[Yuri · Accepted solution]

From the Datasheet :

"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 I/O pins need to have a pull-up or pull-down
resistor applied to limit any floating gate current."

Also please look at section 1.8 (Unused analog interfaces) of the "Hardware Development Guide for i.MX 6 ..."

[kbell_hardware]

Thanks Yuri,

This was on page 23 Note 8 of the datasheet for reference