Optimizing the I/O Assignments
I/O Optimization Methods
PADS I/O Designer provides two methods of I/O Optimization. The I/O optimization procedure is much the same for the two methods, with the differences described below. The two methods are:
- I/O Optimization - Layout Database — Using FPGA part data and actual layout data to optimize I/O for all of the FPGAs on a board.
- I/O Optimization - PADS I/O Designer FPGA Database — Using FPGA database and layout data to optimize I/O for one database.
Fan-out Visibility
In the Layout Window, it is possible to view fan-outs imported from the board.
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In PADS flow, netlines are drawn from pins or the ends of escape hangers or breakouts. |
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