Logic device (PLD) having direct connections between configurable logic blocks (CLBs) and configurable input/output blocks (IOBs)
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United States of America Patent
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Apr 14, 1998
Issued Date -
N/A
app pub date -
Aug 16, 1996
filing date -
Aug 15, 1989
priority date (Note) -
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Abstract
A programmable integrated circuit includes configurable logic blocks (CLB's), configurable input/output blocks (IOB's) and an interconnect network for providing program-defined routing of signals between the CLB's and IOB's. The interconnect network includes direct connect means for providing programmably-selectable, dedicated connections between a first CLB and one or more adjacent CLBs and further between a first CLB and one or more CLBs. The interconnect network also includes peripheral direct connect means for providing programmably-selectable, dedicated connections between a first configurable IOB and first and second CLBs.
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