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AR# 61290

2014.2 Vivado Power Anaysis - What impacts the results of the dynamic power estimation from report_power?

Description

What impacts the results of the dynamic power estimation from report_power?

Solution

The following will impact the results of the dynamic power estimation from report_power:
 
  • Implementation Models - The models are developed to balance simplicity and accuracy. 
    Linear approximations are used to simplify the implementation.
     
  • Basic Modeling Fitting - The models are calibrated against a limited set of measured data points, and those datapoints are chosen to align to key data rates and operating modes.
     
  • Model Parameters - The models do not include all parameters, such as PRE/POST emphasis.

  • Adaptation - The models do not  include adaptive logic, such as DFE and CTLE, which dynamically adjusts to match the system loss.
     
  • Process/Temperature - The process and temperature have little impact on the models


For information on what impacts the results for static power estimation from report_power see (Xilinx Answer 61291)

AR# 61290
Date Created 06/26/2014
Last Updated 09/12/2014
Status Active
Type General Article
Tools
  • Vivado Design Suite - 2014.2