Power and area reduction in multi-stage addition using operand segmentation

Ching Da Chan, Wei Chang Liu, Chia Hsiang Yang, Shyh-Jye Jou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an architectural technique to efficiently implement multi-stage additions through operand segmentation. Carry bypass is leveraged to break the dependency between the two segmented adders, reducing the delay of the critical path. This allows for power-and area-efficient hardware implementation due to the increased timing margin for architectural transformations at the cost of one extra clock cycle. Compared to existing segmented-adders, the proposed architecture has the least hardware overhead with near execution time. An accumulator and a 16-tap FIR filter are used to demonstrate the delay, power, and area improvements of the proposed technique. The synthesis results show that the delay is improved by up to 42% and 28.1%. Given the same timing constraint, the adder area is reduced by 27.4% and 12.4%.

Original languageEnglish
Title of host publication2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013
DOIs
StatePublished - 15 Aug 2013
Event2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013 - Hsinchu, Taiwan
Duration: 22 Apr 201324 Apr 2013

Publication series

Name2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013

Conference

Conference2013 International Symposium on VLSI Design, Automation, and Test, VLSI-DAT 2013
CountryTaiwan
CityHsinchu
Period22/04/1324/04/13

Fingerprint Dive into the research topics of 'Power and area reduction in multi-stage addition using operand segmentation'. Together they form a unique fingerprint.

Cite this