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Saving Vcc power with i.MX537

Question asked by Ted Michon on Mar 10, 2014
Latest reply on Jun 24, 2014 by Yixing Kong

I understand the DVFS concept with Vdd, but how does it work with Vcc? With Vdd, we just slow the CPU clock, and therefore can lower the voltage and save power while we aat idle or in background.

 

But with Vcc, we cannot lower the FEC or USB or UART clocks without causing the these systems to fail because they need specific clock rates. How does one save power with DVFS for Vcc?

 

-Ted

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