Programmable array I/O-routing resource
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United States of America Patent
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Sep 23, 1997
Grant Date -
N/A
app pub date -
Jun 2, 1995
filing date -
Jun 2, 1995
priority date (Note) -
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Abstract
A programmable array having programmable logic cells, a programmable interconnect network and a programmable I/O system. Two I/O interfaces are provided for respective logic cells about the perimeter of the array. The I/O interfaces comprise input, output and enable paths. Each of these paths has an associated multiplexer. An I/O routing network is positioned about the perimeter of the array. Conductors connecting the I/O interface multiplexers to the programmable interconnect network also intersect, and can be programmably connected to, buses of the I/O routing network.
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