SoC低功耗设计中的DVS技术

随着系统芯片(SoC)集成更多的功能并采用更先进的工艺,它所面临的高性能与低功耗的矛盾越来越突出.动态电压调整(DVS)技术可以在不影响处理器性能的前提下,通过性能预测软件根据处理器的繁忙程度调整处理器的工作电压和工作频率,达到降低芯片功耗的目的.文中讨论了DVS技术降低功耗的可能性,介绍了如何利用两种不同的DVS技术让处理器根据当前的工作负荷运行在不同的性能水平上,以节省不必要的功耗.

A Low Power Consumption SoC Design Method Using DVS Technology

With the development of SoC, the conflict between high performance and low power consumption becomes more and more severe. Dynamic voltage scaling (DVS) can reduce power consumption without impact on performance. According to different throughput, a predicting software determines the appropriate operating voltage and frequency. This paper analyzes the possibility of reducing power consumption with DVS, and then describes how to make processor work at different but appropriate voltage and frequency using two DVS technologies according to its work load.