发明名称 |
Method and apparatus for monitoring and compensating for skew on a high speed parallel bus |
摘要 |
Methods and apparatus are provided for monitoring and compensating for skew on a high speed parallel bus. Delay skew for a plurality of signals on a parallel bus is monitored by obtaining a plurality of samples of the plurality of signals for each unit interval; and identifying a location of transitions in the plurality of signals based on the samples. The samples can be obtained, for example, by sampling the plurality of signals using a plurality of latches and estimating a value of one or more of the plurality of signals by comparing values of the latches. A microprocessor can optionally be employed to determine a relative distribution of transitions in the plurality of signals and to align transitions in the plurality of signals to a common position. The transitions in the plurality of signals can be aligned to a common position by adjusting a delay control setting for a buffer associated with each of the plurality of signals.
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申请公布号 |
US2007074084(A1) |
申请公布日期 |
2007.03.29 |
申请号 |
US20050235872 |
申请日期 |
2005.09.27 |
申请人 |
MOBIN MOHAMMAD S;SHEETS GREGORY W;SMITH LANE A |
发明人 |
MOBIN MOHAMMAD S.;SHEETS GREGORY W.;SMITH LANE A. |
分类号 |
G11B20/20;G06K5/04;G11B5/00 |
主分类号 |
G11B20/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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