发明申请
US20120105113A1 DATA TRANSFER CIRCUIT AND DATA TRANSFER METHOD FOR CLOCK DOMAIN CROSSING
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用于时域交叉的数据传输电路和数据传输方法
- 专利标题: DATA TRANSFER CIRCUIT AND DATA TRANSFER METHOD FOR CLOCK DOMAIN CROSSING
- 专利标题(中): 用于时域交叉的数据传输电路和数据传输方法
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申请号: US13267184申请日: 2011-10-06
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公开(公告)号: US20120105113A1公开(公告)日: 2012-05-03
- 发明人: Takashi Maeno , Masahiro Murakami
- 申请人: Takashi Maeno , Masahiro Murakami
- 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
- 优先权: JP2010-244103 20101029
- 主分类号: H03L7/00
- IPC分类号: H03L7/00
摘要:
A circuit that transfers data between a first clock domain using a first clock and a second clock domain using a second clock synchronized with the first clock. The circuit comprises a data holding circuit operating at the first clock, an enable signal generation circuit connected to the data holding circuit. Preferably, the data transfer circuit includes an edge signal generation circuit connected to the data holding circuit, the edge signal generation circuit generating an edge signal allowing the data holding circuit to receive and send the data when edges of the first clock and the second clock align, and applying the edge signal to the data holding circuit.
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