Crosstalk Model and Estimation Formula for VLSI Interconnect Wires

We develop an interconnect crosstalk estimation model on the assumption of linearity for CMOS device. First, we analyze the terminal response of RC model on the worst condition from theS field to the time domain. The exact 3 order coefficients inS field are obtained due to the interconnect tree model. Based on this, a crosstalk peak estimation formula is presented. Unlike other crosstalk equations in the literature, this formula is only used coupled capacitance and grand capacitance as parameter. Experimental results show that, compared with the SPICE results, the estimation formulae are simple and accurate. So the model is expected to be used in such fields as layout-driven logic and high level synthesis, performance-driven floorplanning and interconnect planning.

基于FPGA的基础光互连网络实验平台

提出了一种基于FPGA的基础光互连网络(FPGA-based basic optical Interconnection Network,FictionNet)的实验平台,即通过简化复杂的光互连网络,只研究其基本结构并在集成有光学收发模块的FPGA上实现,以此来探究网络的部分性能。介绍了实验平台中重要模块的实现并展示了4×4多播光互连网络的构建实例,得到功能健全、误码率低于10-8的网络。另外,还分析了网络时延的组成。