Implementation and Optimization of DSP Suspend Resume on Dual-Core SOC

Author

Chang, Ming-Wei ; Tseng, Shau-Yin ; Lin, Homn ; Su, Ching-Lung

Author_Institution

SoC Technol. Center, Ind. Technol. Res. Inst., Hsinchu

fYear

2009

fDate

25-27 May 2009

Firstpage

185

Lastpage

190

Abstract

Energy consumption has become an increasingly design issue in multimedia mobile system. This paper presents a realization for suspend/resume on a dual-core SoC to conserve energy consumption while system is idle.A generic backup/restore mechanism is proposed for any DSP applications. Furthermore, optimization for latency targets on characteristic of H.264/AVC decoder is refined and only needs to backup 26 words for resume.Experimental results show optimization scheme can achieve 99% improvement in latency and the realization for suspend/resume can provide a valuable experience for similar designs.

Keywords

digital signal processing chips; optimisation; system-on-chip; video coding; DSP; H.264/AVC decoder; dual-core SOC; energy consumption; multimedia mobile system; optimization scheme; suspend resume; Automatic voltage control; Clocks; Decoding; Delay effects; Digital signal processing; Energy consumption; Energy management; Frequency; Multimedia systems; Resumes; DSP power management; power-aware multimedia;

fLanguage

English

Publisher

ieee

Conference_Titel

Embedded Software and Systems, 2009. ICESS '09. International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4244-4359-8

Type

conf

DOI

10.1109/ICESS.2009.52

Filename

5066647