Report Skew Dialog Box (report_skew)

You open this dialog box by double-clicking Report Skew in the Tasks pane in the Timing Analyzer.

Allows you to configure and display a customized report that details the results of skew analysis as defined by timing constraints and exceptions. After generating a Report Skew report, you can transfer the information to the Report Max Skew to further refine your SDC.

Note: You can click the Pushpin button to keep the Report Timing dialog box open after you generate a report. You can use this feature to fine tune your report settings or quickly create additional reports. You can click Close to close the dialog box at any time.

Clocks

Allows you to filter timing data according to the specified source and destination clocks or clock collections.

Scripting Information

Keyword: report_skew

Settings: -from_clock<clock_list>

-to_clock<clock_list>

Targets

Allows you to filter report timing data according to the specified source and destination timing path, or timing paths that go through a specific node. For each timing path, you can use the Name Finder to build a collection Definition of targets.

Scripting Information

Keyword: report_skew

Settings: -from<object_list>|-through<object_list>|-to<object_list>

Include

Paths

Allows you to specify the number of timing paths to report (the default is 1) and to direct the Timing Analyzer to report only paths with a minimum skew value. You can specify both of these settings if you want to report n paths with slack less than 0.

Scripting Information

Keyword: report_skew

Settings: -npaths<number>|-greater_than_skew<number>

Output

Allows you to specify where you want to save the report and how much detail you want in the report. You can select one or more of the following settings:

  • Detail level— Allows you to specify how much detail appears in the report. You can select: Summary; Path Only; Path and Clock; or Full Path. You can click Set Default to make the current setting the default setting for all reports.
    Scripting Information

    Keyword: report_skew

    Settings: :-detail<summary|path_only|path_and_clock|full_path>
  • Show Routing— Allows you to see detailed routing for the path in the report, including expanded routing information for path elements marked IC (Interconnect Delay) in the Type column of the report when the Show Routing option is not turned on.
    Scripting Information

    Keyword: report_skew

    Settings: :-show_routing
  • Report panel name— Allows you to specify a unique name for the report. The default report name is Report Timing.
    Scripting Information

    Keyword: report_skew

    Settings: -panel_name<reportname>
  • Enable multi corner reports— Allows you to enable or disable multi-corner timing analysis. This option is on by default.
    Scripting Information

    Keyword: report_skew

    Settings: -multi_corner
  • File name— Directs the Timing Analyzer to save the report to your local disk as a text file with the specified file name.
    Scripting Information

    Keyword: report_skew

    Settings: -file<filename>

    Under File options you can specify whether the Timing Analyzer overwrites an existing file (the default setting) or appends the content to an existing file.

    Scripting Information

    Keyword:report_skew

    Settings: -append|-overwrite
  • Console— Specifies whether the report appears as information messages in the Console.
    Scripting Information

    Keyword:report_skew

    Settings: -stdout

Tcl command

Displays and allows you to modify Tcl commands for the options you specify in this dialog box.