Method and system of sampling to automatically scale digital power estimates with frequency

摘要

A method for automatically scaling estimates of digital power consumed by a portion of an integrated circuit (IC) device by the operating frequency of the portion of the IC are described herein. The method may include obtaining an energy value which may correspond to an amount of energy used by the portion of the IC. A cumulative energy value may be generated by repeatedly, at a frequency proportional to the operating frequency of the portion of the IC, obtaining energy values and adding each obtained energy value to a sum of energy values for the portion of the IC. The cumulative energy value may be sampled at a time sample interval to generate an estimate of the portion of the IC's digital power consumption that is automatically scaled with the operating frequency of the portion of the IC.

主权项

1. A method comprising:
obtaining, by a power monitor of an integrated circuit device, an energy value for at least a portion of the integrated circuit device, wherein the energy value corresponds to an amount of energy used by the at least a portion of the integrated circuit device during operation; generating, by the power monitor of the integrated circuit device, a cumulative energy value for the at least a portion of the integrated circuit device by repeatedly obtaining energy values, wherein the cumulative energy value is based upon the obtained energy values; and sampling the cumulative energy value at a time sample interval, wherein each sample of the cumulative energy value corresponds to an estimate of an amount of energy used by the at least a portion of the integrated circuit device during the time sample interval.