| 摘要 |
The present invention provides a new method to handle a signal that crosses one or more areas in modular design of programmable logic devices. Even when the signal have an attribute disallowing the use of programmable interconnect points on an associated wire, the programmable interconnect points may still be used if the wire has no input programmable interconnect points outside of the attribute's associated area. This approach makes use of the programmable interconnect point directionalities and allows for more programmable interconnect points to be used while guaranteeing that the detailed routing solution is conflict free and absent of signal shorts.
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