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Pins Step in Standalone Abstract Generation

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The Pins step describes the first step in the abstract generation process. Usually, no pins are explicitly defined in the layout view, so they have to be generated before you can continue the abstract generation process. Abstract Generator derives pins from the text labels in the layout view and places the locations at the text origins.

• If there is a logical view present, Abstract Generator only creates pins that match logical view terminals.
• Abstract Generator copies the placement status of the pins in the layout view to the abstract view. The supported placement states are locked, placed, fixed, none, and unplaced.
• Abstract Generator automatically detects shapes placed in width spacing pattern (WSP) regions and ignores these shapes while creating pins under labels and PR boundaries.

Abstract Generator provides a number of options that support a variety of layout and text mapping conventions. To check options for mapping and for controlling the generation of pins, see Specifying Pin Mappings for Abstract Generation.

Abstract Generator performs the following functions during the Pins step:

• Maps text labels to terminal names and creates terminals
• Creates physical pin shapes corresponding to the geometry overlapping the text labels
• Creates the place-and-route boundary

You can use the Running step Pins form to view and modify the bin options relevant to the Pins step.

To run the Pins step:

1. Select one or more cells in the main window and click the Pins button. Alternatively, select Flow – Pins command.
   This opens the Running step Pins form. There are four tabs on the Running step Pins form: Map, Text, Boundary, and Blocks. You can use the radio buttons on the left to navigate to the tab pages for the different steps and bins you are using in the Running step Pins form.
2. When you are satisfied with the options settings, click Run to run the step.

The Percent Complete message box reports the progress of the step. When the Pins step is complete, Abstract Generator places a symbol against the cell in the Cell pane to indicate the status of the Pins view that was created.

Related Topics

Extract Step in Standalone Abstract Generation

Abstract Step in Standalone Abstract Generation

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