In this paper, an Independent Window-Access(IWA) scheme is proposed, and the performance of an input-buffered ATM switching fabric with the IWA scheme is analysed by means of a probability generating function approach...In this paper, an Independent Window-Access(IWA) scheme is proposed, and the performance of an input-buffered ATM switching fabric with the IWA scheme is analysed by means of a probability generating function approach, the closed formulas of the average cell delay and the maximum throughput are given, and results show that the IWA scheme makes the switching fabric have better performances than traditional window-access scheme. The computer simulation results are in good agreement with these analytical results.展开更多
针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射...针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射仿真以及对同步动态随机存储器(SDRAM)的时序仿真来优化数字视频系统的PCB的设计.结果表明,使用这些设计方案可以有效地提高信号完整性,从而增强高速数字视频系统的可靠性.展开更多
文摘In this paper, an Independent Window-Access(IWA) scheme is proposed, and the performance of an input-buffered ATM switching fabric with the IWA scheme is analysed by means of a probability generating function approach, the closed formulas of the average cell delay and the maximum throughput are given, and results show that the IWA scheme makes the switching fabric have better performances than traditional window-access scheme. The computer simulation results are in good agreement with these analytical results.
文摘针对高速数字视频系统印刷电路板(PCB)设计中由于传输线的高频特性导致的信号完整性问题,通过输入/输出缓冲器信息规范(input/output buffer information specification,IBIS)模型对TI公司提供的TMS320DM642芯片扩展的外部存储器的反射仿真以及对同步动态随机存储器(SDRAM)的时序仿真来优化数字视频系统的PCB的设计.结果表明,使用这些设计方案可以有效地提高信号完整性,从而增强高速数字视频系统的可靠性.
