1 Reply Latest reply on Nov 21, 2013 7:16 AM by kevin_intel

    DVFS for atom D2000 processor


      This is my first exposure to DVFS and I would like to be clarified on a few points

      The data sheet for the processor says that it supports lots of P-states.

      It also says that

      Frequency selection is software controlled by writing to processor MSRs. The voltage is optimized based on the selected frequency:

      The VID specifications for the processor VCC_CPU and VCC_GFX are defined by the IMPL 7 Voltage Reulator Controller Design Guidelines.

      My questions are

      Is it possible to independently set the voltage/frequency and if so how and to which register do we write to?

      What are values for various frequencies?

      How do we use the Voltage Controller to change processor core voltage ?