April 29, 2010 -- This article focuses on methods of defining power features based on the functionality of the design. It explains how power states can be defined and how different power features can be implemented for different power states in order to achieve higher power savings. A USB IP is used as an example throughout although the power features explained are generic and they can be used as a good reference for implementation in both data path and connectivity IPs.
This article covers the following topics:
Need for power optimization in an IP.
Defining power states for an IP.
Introduction to power features.
Verification of power features.
Defining power states in a USB IP.
Implementing features for power states.
By Sayandeep Nag, B.U. Chandrashekar and K.D. Prathima. (Nag and Chandrashekar are with Synopsys, Bangalore, India; Prathima is with the Manipal Center for Information Science, Manipal, India.)
This brief introduction has been excerpted from the original copyrighted article.