发明申请
US20060181908A1 Method and apparatus for controlling the timing of precharge in a content addressable memory system
有权
用于控制内容可寻址存储器系统中的预充电时序的方法和装置
- 专利标题: Method and apparatus for controlling the timing of precharge in a content addressable memory system
- 专利标题(中): 用于控制内容可寻址存储器系统中的预充电时序的方法和装置
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申请号: US11055802申请日: 2005-02-11
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公开(公告)号: US20060181908A1公开(公告)日: 2006-08-17
- 发明人: Yuen Chan , Masood Khan , Michael Lee , Ed Seewann
- 申请人: Yuen Chan , Masood Khan , Michael Lee , Ed Seewann
- 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
- 主分类号: G11C15/00
- IPC分类号: G11C15/00
摘要:
A CAM system is disclosed in which compare data, for example an address translation request, is provided as input search data to a search line generator. The search line generator presents search line input data, through a buffer, to CAM and RAM array systems that include dynamically precharged and evaluated memory cells. Timing sequences in the CAM system are controlled by a series of individually triggered one shot pulse generators. The one shot pulse generators control the timing of CAM system activities, for example the precharge of CAM subsystems, so that these activities are staggered in time. This timing approach improves power consumption and evaluation time within the CAM system. By distributing precharging activities in time throughout the CAM cycle, current peaking during the CAM cycle is reduced. The CAM system latches results in an output latch that is controlled by a one shot pulse generator.
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