发明名称 |
Dynamic clock phase alignment between independent clock domains |
摘要 |
A design structure is described for dynamically aligning clocks in independent clock domains with minimal latency. In the preferred embodiments, a reference clock in the destination clock domain that is some multiple times the data clock of the destination clock domain is used to sample a data sample signal from the source domain. The sampled data is used to determine at what time slice of the reference clock the data sample signal is changing and therefore at what phase of time slice or phase of the data clock the clocks can be aligned to ensure valid data will be transferred between clock domains.
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申请公布号 |
US7904741(B2) |
申请公布日期 |
2011.03.08 |
申请号 |
US20070870985 |
申请日期 |
2007.10.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAUMGARTNER STEVEN JOHN;GEER CHARLES PORTER |
分类号 |
G06F1/00;G06F1/12;G06F1/24 |
主分类号 |
G06F1/00 |
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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