新型可重构移位-置换单元研究与设计

发布时间：2018-06-18 06:31

本文选题：Inverse + Butterfly/Butterfly网络　；参考：《电子学报》2017年05期

【摘要】：本文利用Inverse Butterfly/Butterfly多级动态网络的自重构特性,提出了一种针对循环移位操作的高速可重构控制信息生成算法,该算法不仅具有极高的并行性和较小的资源消耗,还首次将循环移位、双向循环移位和以2~i(i=0,1,2…)为位宽的短字循环移位等10余种不同类型的移位操作统一在一个算法中.并在此基础上,设计了一种新型可重构移位-置换单元.该单元在SMIC 65nm工艺完成了逻辑综合.实验结果表明,当该单元只实现循环移位时,与以往研究成果相比,频率提升了6.4%~12%,面积减小了22%~30%;当该单元实现多种移位操作时,频率下降约8.4%,但能够支持的移位操作类型是以往研究成果的2倍.
[Abstract]:Based on the self-reconfiguration characteristic of inverse Butterfly / Butterfly multilevel dynamic network, this paper proposes a high speed reconfigurable control information generation algorithm for cyclic shift operations. This algorithm not only has high parallelism and low resource consumption, but also has the following advantages: 1. The cyclic shift, bidirectional cyclic shift and 1 / 2 / 2 / 2 cyclic shift were also used for the first time. More than 10 different types of shift operations, such as short word cyclic shift with bit width, are unified in one algorithm. On this basis, a new reconfigurable shift-permutation unit is designed. The unit has completed logic synthesis in the SMIC 65nm process. The experimental results show that when the unit only realizes cyclic shift, compared with previous research results, the frequency of the unit is increased by 6.4%, and the area of the unit is reduced by 22 ~ 300.When the unit realizes a variety of shift operations, The frequency decreases by about 8.4%, but the types of shift operations that can be supported are twice as large as those of previous studies.
【作者单位】：解放军信息工程大学;复旦大学集成电路国家重点实验室;
【基金】：国家自然科学基金(No.61404175)
【分类号】：TP301.6;TP332

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