Technique for preconditioning I/Os during reconfiguration
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United States of America Patent
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Feb 9, 1999
Grant Date -
N/A
app pub date -
May 9, 1996
filing date -
Apr 5, 1996
priority date (Note) -
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Abstract
A technique for configuring programmable integrated circuits. The technique involves preconditioning or predefining the outputs and I/Os of a programmable integrated circuit before the device is programmed or reconfigured. When the device is programmed, the outputs and I/Os of the programmable integrated circuit will be driven to the preconditioned or predefined states. The technique may be implemented in conformance with the IEEE 1149.1 boundary scan architecture standard. Standard IEEE 1149.1 instructions may be used. The technique may also be used during in-system programming of programmable integrated circuits.
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