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›› 2001, Vol. 27 ›› Issue (06): 29-31.

• 论文 • 上一篇    下一篇

集成电路设计中的逻辑加速优化算法

罗晓春,林争辉   

  1. 上海交通大学大规模集成电路研究所 上海 200030,上海交通大学大规模集成电路研究所 上海 200030
  • 发布日期:2001-06-25

Logic Speed-up Optimization in IC Design

LUO Xiaochun, LIN Zhenghui   

  1. (VLSI Research Institute, Shanghai Jiaotong University,Shanghai 200030)
  • Published:2001-06-25

摘要: 为了尽可能提高实际电路的运行速度, 针对传统"逻辑优化"过程中的问题和不足, 以"多级逻辑变换"技术为核心,提出了"逻辑加速优化"设计方法。在优化过程中,既考虑了与工艺无关的优化,也考虑了工艺库单元的实际延时性能;并且,由于对原电路进行了较大规模的重建,因此可得到传统"分解"技术无法生成的逻辑结构。

关键词: 工艺映射, 布尔网络, 关键路径, 逻辑综合

Abstract: In order to optimize the circuit's delay, we present a new method named "logic speed-up optimization" which aims at the drawback of the conventional logic optimization. The key step of the method is "multilevel logic transformation", and it has two virtues: first, it considers both of the technology independent optimization and the cell library's capability; second, it reconstructs the circuit's structure so that the circuit can get some new logic structures which can not be obtained by conventional logic decomposition.

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