发明申请
- 专利标题: DOUBLE COMPRESSION AVOIDANCE
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申请号: US15649771申请日: 2017-07-14
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公开(公告)号: US20190020333A1公开(公告)日: 2019-01-17
- 发明人: Michael V. Koch , Andreas H.A. Arp , Matthias Ringe , Fatih Cilek
- 申请人: International Business Machines Corporation
- 主分类号: H03K5/151
- IPC分类号: H03K5/151 ; H03K3/038
摘要:
The disclosure relates to a skew control circuit for controlling the skew between at least three clock signals, the clock signals being forwarded to different clock domains associated with the respective clock signals. The skew control circuit comprises multiple programmable delay elements arranged within a signal flow before the respective clock domain, a skew detector arrangement operable for detecting skews between at least two pairs of the clock signals, and a control circuit operable for adjusting delays caused by the programmable delay elements. The control circuit is operable for carrying out a de-skewing operation. The de-skewing operation comprises determining an order of occurrence of edges of the signals, selecting one of the programmable delay elements based on the determined order, and adjusting the delay caused by the selected programmable delay element.
公开/授权文献
- US10298217B2 Double compression avoidance 公开/授权日:2019-05-21
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