发明授权
US06191612B1 Enhanced I/O control flexibility for generating control signals
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增强的I / O控制灵活性,用于产生控制信号
- 专利标题: Enhanced I/O control flexibility for generating control signals
- 专利标题(中): 增强的I / O控制灵活性,用于产生控制信号
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申请号: US09196449申请日: 1998-11-19
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公开(公告)号: US06191612B1公开(公告)日: 2001-02-20
- 发明人: Om P. Agrawal , Bradley A. Sharpe-Geisler , Giap Tran
- 申请人: Om P. Agrawal , Bradley A. Sharpe-Geisler , Giap Tran
- 主分类号: H03K19177
- IPC分类号: H03K19177
摘要:
A Field Programmable Gate Array (FPGA) device includes a plurality of input/output blocks (IOBs) and variable grain blocks (VGBs). An inter-connect network provides efficient and flexible routing of control signals from VGBs to IOBs. Control signals may include individual control signals to a predetermined IOB or common control signals to a plurality of IOBs. The inter-connect network includes vertical and horizontal inter-connect channels. The inter-connect channels are coupled to switch boxes having line segments or stubs. The line segments are coupled to an IOB control multiplexer which output control signals to IOBs. The use of stubs allows for efficient and flexible use of interconnect resources.
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