基于路径成组分离策略的低功耗FIR设计

Low-Power FIR Design Based on Path Grouping Strategy

本文通过对电路布局的多电压代价进行分析,提出把电路按照不同的路径长度成组分离为不同的区域时,易于采用多电压实现,且采用多电压实现的代价最小。并以剩余数系统为例进行仿真说明,在体系结构层得到具有不同时序约束的子模块,在电路层根据不同的路径长度分成两种不同的供电电压,达到降低功耗的目的。在实际应用中可以根据具体设计决定优化方案。

This paper analyze the multi-voltage cost of circuit placement, and present that only if the design can be partitioned to different domain according to different path length, the multi-voltage cost of placement is minimum and the design is easy to implement via multi-voltage. This paper takes the residue number system as example, result in sub-module with different timing constraint at the architecture level. And use dual voltage at the circuit to different part with different path length to reduce power. I...