发明授权
US5764076A Circuit for partially reprogramming an operational programmable logic
device
失效
用于部分重新编程操作可编程逻辑器件的电路
- 专利标题： Circuit for partially reprogramming an operational programmable logic device
- 专利标题（中）： 用于部分重新编程操作可编程逻辑器件的电路
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申请号： US670472申请日： 1996-06-26
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公开(公告)号： US5764076A公开(公告)日： 1998-06-09
- 发明人: Napoleon W. Lee , Derek R. Curd , Jeffrey H. Seltzer , Jeffrey Goldberg , David Chiang , Kameswara K. Rao , Nicholas Kucharewski, Jr.
- 申请人： Napoleon W. Lee , Derek R. Curd , Jeffrey H. Seltzer , Jeffrey Goldberg , David Chiang , Kameswara K. Rao , Nicholas Kucharewski, Jr.
- 申请人地址： CA San Jose
- 专利权人： Xilinx, Inc.
- 当前专利权人： Xilinx, Inc.
- 当前专利权人地址： CA San Jose
- 主分类号： G06F17/50
- IPC分类号： G06F17/50 ; H03K19/177
摘要：
A complex programmable logic device (PLD) that includes a number of programmable function blocks and an instruction bus for receiving programming instructions. The programming instructions are used to program the function blocks to enable the PLD to perform one or more desired logic functions. The PLD also includes an instruction-blocking circuit that is connected to each of the functional blocks. When directed by a user, the instruction blocking circuit selectively blocks programming instructions on the instruction bus from one or more of the function blocks while allowing the other function blocks to receive the programming instructions. Thus, one or more function blocks in the PLD are reprogrammed without interrupting the operation of the remaining function blocks.
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