一种数字信号处理器的动态功耗管理方案

动态功耗管理是一种系统级低功耗设计技术，降低功耗的思路是根据系统当前负载动态调整时钟频率或者关闭时钟。文章以数字信号处理器为模型，提出了一种系统属性可调节的动态功耗管理方案，它支持通过软硬件配合对功耗进行灵活的动态管理，其管理策略采用了适应性预测算法，并引入非确定性因子。实验结果表明，该方案可以大大降低数字信号处理器的功耗。

A Dynamic Power Management Scheme for the Digital Signal Processor

Dynamic Power Management (DPM)is a technique to reduce power consumption of systems by shutting down clocks or changing their frequency according to system loads.This paper introduces an adjustable-attribute DPM scheme on the basis of the Digital Signal Processor.It supports the cooperation of hardware and software to manage systems.Its policy combines the adaptive and predictive algorithm with a non-deterministic factor.Experimental results demonstrate that this scheme can greatly decrease power consumption of the DSP.