Write out signal activities used during power analysis

Directs the PowerPlay Power Analyzer to create a Signal Activity File (.saf) Definition, which records the toggle rates and static probabilities that occur during power analysis. If you select this option, you must specify a file name in the accompanying Output file name box.

Note:

You might want to turn on this option if you are using a large Value Change Dump File (.vcd) Definition produced by a third-party simulator. By recording signal activities to a Signal Activity File during the initial running of the PowerPlay Analyzer, you can then use this Signal Activity File as input to subsequent power analyses, thereby saving the time required to reread a large Value Change Dump File.