Block clock and initialization circuit for a complex high density PLD

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United States of America Patent

PATENT NO 5811987
SERIAL NO

08740948

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Abstract

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A block clock and initialization circuit for a programmable logic block in a complex very high density programmable logic device generates a plurality of block clock signals and block initialization signals for elements in the programmable logic block. The block clock and initialization circuit includes a block clock generator circuit and a block initialization circuit. The block clock generator circuit receives a first set of product terms in a plurality of product terms and a plurality of clock signals as input signals. In response to the input signals, the block clock generator circuit generates output signals on a plurality of block clock lines. The block initialization circuit receives a second set of product terms in the plurality of product terms as input signals. In response to the input signals, the block initialization circuit generates a plurality of output signals on the block initialization lines.

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Patent Owner(s)

Patent OwnerAddress
LATTICE SEMICONDUCTOR CORPORATION5555 NE MOORE CT HILLSBORO OR 97124

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashmore, Jr Benjamin Howard Austin, TX 3 154
Marshall, Jeffery Mark Austin, TX 6 237
Moyer, Bryon Irwin Cupertino, CA 8 183
Porter, John David Boise, ID 56 857
Schmitz, Nicholas A Sunnyvale, CA 12 879
Sharpe-Geisler, Bradley A San Jose, CA 97 2796

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