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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A clock distribution network for microprocessors
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A clock distribution network for microprocessors

机译:微处理器的时钟分配网络

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摘要

A global clock distribution strategy used on severalnmicroprocessor chips is described. The clock network consists ofnbuffered tunable trees or treelike networks, with the final level ofntrees all driving a single common grid covering most of the chip. Thisntopology combines advantages of both trees and grids. A new tuningnmethod was required to efficiently tune such a large strongly connectedninterconnect network consisting of up to 6 m of wire and modeled withn50000 resistors, capacitors, and inductors. Variations are described tonhandle different floor-planning styles. Global clock skew as low as 22nps on large microprocessor chips has been measured
机译:描述了在几个微处理器芯片上使用的全局时钟分配策略。时钟网络由缓冲的可调树或树状网络组成,最终的树级驱动所有覆盖大部分芯片的单个公共网格。这种拓扑结合了树和网格的优点。需要一种新的调谐方法来有效地调谐由6m的电线组成的大型强互连互连网络,并以500,000个电阻器,电容器和电感器为模型。描述了各种变化,说明了不同的平面布置风格。已测量大型微处理器芯片上的全球时钟偏斜低至22nps

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