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1. 发明授权

US07417985B1 Egress selection switch architecture with power management 有权
标题翻译：出口选择开关架构与电源管理
公开(公告)号：US07417985B1
公开(公告)日：2008-08-26
申请号：US10765945
申请日：2004-01-29
申请人： Carl Dietz McCrosky , Andrew Milton Hughes , Winston Ki-Cheong Mok , Nick Rolheiser
发明人： Carl Dietz McCrosky , Andrew Milton Hughes , Winston Ki-Cheong Mok , Nick Rolheiser
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L49/3027 , H04L49/3072 , H04L49/40
摘要： A method and an apparatus for reducing power consumption and digital logic noise in a time division multiplexed memory switch. The method is embodied in an egress selection switch (ESS) block architecture. The ESS block includes a data disable block which prevents the propagation of data, in particular ingress grains, to a given group of egress ports if the data is not selected by any of the egress ports in a given group. While the ingress data disable method partitions ports into groups and saves power by disabling the fanout tree from the root on a port group basis, the egress data disable method saves power on a port group basis by disabling the fanout tree from the tail end in addition to applying the ingress data disable method. The ESS block also includes an grain select block for selecting and storing a given ingress grain for eventual output to an egress port.
摘要翻译：一种用于在时分多路复用存储器开关中降低功耗和数字逻辑噪声的方法和装置。该方法体现在出口选择交换（ESS）块体系结构中。如果给定组中的任何出口端口没有选择数据，则ESS块包括数据禁止块，其阻止数据传播，特别是入口颗粒到给定的出口端口组。入口数据禁用方法将端口分组，并通过端口组根除掉扇出树来节省电源，出口数据禁止方式基于端口组，通过从尾端禁用扇出树节省功耗应用入侵数据禁用方法。 ESS块还包括用于选择和存储给定入口颗粒以便最终输出到出口端口的颗粒选择块。

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