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功耗已经成为集成电路设计的一个十分重要的问题 对于一个给定的电路 ,其功耗是与输入密切相关的 ,即对于不同的输入向量集 ,同一电路可能会有不同的功耗 功耗敏感性定义了由于原始输入的改变而引起的功耗变化特性 文中给出了基于信号置 1概率和跳变率传输特性的功耗敏感性分析方法 ,并详细阐述了它在无时延动态功耗估计和静态功耗估计中的应用 实验结果表明 ,它在保证了较好精度的条件下 ,大大降低了估计时间 ;另外 ,这一方法还可以应用于时延动态功耗估计、在特定向量集上的动态及静态功耗估计 ,并且在一定程度上为低功耗设计提供参考
Power consumption has become a very important issue in IC design For a given circuit, the power consumption is closely related to the input, that is, for different input vector sets, the same circuit may have different power consumption sensitivity This paper defines the power consumption characteristics caused by the change of the original input. In this paper, the power consumption sensitivity analysis method based on the transmission probability of the signal set probability and the transition rate is given, and its dynamic power consumption without delay The experimental results of estimation and static power estimation show that it can greatly reduce the estimation time under the condition of ensuring the better accuracy. In addition, this method can also be applied to the dynamic power estimation of delay, On the dynamic and static power estimates, and to some extent, provide a reference for low-power design