发明授权
- 专利标题: High frequency valid data strobe
- 专利标题(中): 高频有效数据选通
-
申请号: US09322465申请日: 1999-05-28
-
公开(公告)号: US06177807B1公开(公告)日: 2001-01-23
- 发明人: Claude L. Bertin , John A. Fifield , Erik L. Hedberg , Russell J. Houghton , William R. Tonti
- 申请人: Claude L. Bertin , John A. Fifield , Erik L. Hedberg , Russell J. Houghton , William R. Tonti
- 主分类号: G03K1716
- IPC分类号: G03K1716
摘要:
A processor with a memory send/received control circuit including a bus drive circuit and a detector circuit connected via control bus line to the control input of the memory. A data input line, or output line, or data input/output line is connected between the processor and the memory. A transmission line stub having a length that is incrementally variable is connected to the memory control input side of the control line 14. The impedance Z0 of the transmission line stub is equal to that of the control line and is open circuited at the end which results in voltage doubling to achieve high speed synchronization between control signals and data signals and to ensure valid data at high clock rates.