发明授权
US5774700A Method and apparatus for determining the timing of snoop windows in a
pipelined bus
失效
用于确定流水线总线中的窥探窗口的定时的方法和装置
- 专利标题: Method and apparatus for determining the timing of snoop windows in a pipelined bus
- 专利标题(中): 用于确定流水线总线中的窥探窗口的定时的方法和装置
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申请号: US425370申请日: 1995-04-20
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公开(公告)号: US5774700A公开(公告)日: 1998-06-30
- 发明人: Matthew A. Fisch , Nitin V. Sarangdhar
- 申请人: Matthew A. Fisch , Nitin V. Sarangdhar
- 申请人地址: CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: CA Santa Clara
- 主分类号: G06F12/08
- IPC分类号: G06F12/08 ; G06F1/04
摘要:
A method and apparatus for determining the timing of snoop windows in a pipelined bus includes a snoop timer, a snoop counter, and snoop resolution logic. The snoop timer indicates the number of clocks until the next snoop window. The snoop counter keeps track of the number of snoop windows currently being tracked by the apparatus and is updated by the snoop resolution logic. In one embodiment, the snoop resolution logic updates the snoop counter when a snoop event occurs on the bus. In one embodiment, the apparatus also includes snoop drive logic which drives snoop result signals onto the bus during snoop windows.
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