PROGRAMMABLE LOGIC CIRCUIT PROVIDED WITH REDUNDANT CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a routing architecture independent of horizontal and vertical wires over most parts of a device. SOLUTION: The programmable logic circuit is provided with a plurality of signal paths each spread over a plurality of logic region rows and provided with a plurality of lines, a normal mode stitching circuit for coupling the first lines of a plurality of signal paths to the second lines of a plurality of signal paths and a redundant mode stitching circuit for coupling the tails of the first lines of a plurality of signal paths to the second lines of a plurality of signal paths. COPYRIGHT: (C)2003,JPO