- 专利标题: Apparatus and method for power savings in high-performance CAM structures
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申请号: US10899358申请日: 2004-07-26
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公开(公告)号: US07079409B2公开(公告)日: 2006-07-18
- 发明人: Chiaming Chai , Michael T. Phan , Joel A. Silberman , Carmen C. Sloan
- 申请人: Chiaming Chai , Michael T. Phan , Joel A. Silberman , Carmen C. Sloan
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 Joscelyn G. Cockburn; William N. Hogg
- 主分类号: G11C15/00
- IPC分类号: G11C15/00
摘要:
This invention reduces power consumed during CAM search operations in a CAM/RAM structure utilizing a segmented match line structure. This device is useful when it is known that a portion or portions of the compare data inputs vary infrequently. The apparatus sometimes may be referred to as local match line hold latch, and is a device that stores the value of a local match line comparison result the first time that a search operation occurs, and will stay at that value until the value of the compare data in of the local match line changes.
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