Electronic digital logic circuitry – Multifunctional or programmable – Array
Patent
1997-06-11
1999-11-09
Tokar, Michael
Electronic digital logic circuitry
Multifunctional or programmable
Array
326 38, 326 39, H03K 19177
Patent
active
059821957
ABSTRACT:
A programmable logic device has regions of programmable logic disposed on the device in a two-dimensional array of intersecting rows and columns of such regions. Horizontal interconnection conductors are associated with each row, and vertical interconnection conductors are associated with each column. Local conductors are interspersed between adjacent pairs of regions in each row for supplying signals to the regions on both sides of the local conductors. Subregions of programmable logic in each region generally have a local output and a global output. The global output is only usable to output to the relatively long-distance horizontal and vertical conductors. The local output is additionally usable as a local feedback and as a local connection to an adjacent region.
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Cliff Richard G.
Heile Francis B.
Huang Joseph
Lee Fung Fung
McClintock Cameron
Altera Corporation
Jackson Robert R.
Le Don Phu
Tokar Michael
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