By Topic

An activity-driven encoding scheme for power optimization in microprogrammed control unit

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Wang, C.-Y. ; Synopsys Inc., Mountain View, CA, USA ; Roy, K.

With the high demand for reliability and further integration, power consumption has become a critical concern in today's very large scale integration design. Considering the different techniques to minimize power consumption and promote system's reliability, reducing switching activity of CMOS circuits is a promising area to be explored. In this paper, we present a encoding scheme to refine the control memory in a microprogrammed control unit, which can reduce switching activities within the control unit and on the path from control unit to data-processing unit. To achieve this, pseudo-Boolean programming techniques have been introduced to efficiently encode don't care bits in the control memory. Experiments have been conducted with a subset of 8086 instruction set. Results show that, 4.8%-16.5% reduction of switching activities can be obtained from the proposed encoding scheme.

Published in:

Very Large Scale Integration (VLSI) Systems, IEEE Transactions on  (Volume:7 ,  Issue: 1 )