Configurable IC with configurable routing resources that have asymmetric input and/or outputs
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United States of America Patent
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Aug 11, 2009
Grant Date -
Oct 18, 2007
app pub date -
Mar 15, 2005
filing date -
Nov 8, 2004
priority date (Note) -
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Abstract
Some embodiments provide a configurable IC that includes several configurable tiles. The configurable tiles include several interior tiles within the interior of an arrangement of configurable tiles. The arrangement has several sides that define the exterior boundary of the arrangement. Each configurable interior tile includes a set of configurable logic circuits and a set of configurable routing interconnect circuits for routing signals between the configurable logic circuits. The set of configurable routing interconnect circuits in each interior tile has a set of inputs that are supplied by a set of asymmetric locations in the configurable IC. Any distance between any routing circuit in any interior tile and any boundary-defining side of the tile arrangement is greater than any distance between any particular routing circuit in any interior tile and any circuit that provides an input of the particular routing circuit.
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