Tap Cells Form
The following table describes the fields available in the Tap Cells form.
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Field
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Description
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Show selected only
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Clears all filters field shows only selected cells.
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Clear selected
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Deselects all cells.
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Choose Library
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Opens the Library Browser from which you can select the library that contains the required cells. A list of layout and abstract views in the selected library are displayed in the Cells pane.
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Cells
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Lists cells that have their component class set to STDSUBCONT. You can select the required tap cells from the list.
If, by default, no tap cells are listed, click Choose Library and select a library from the Library Browser. A list of layout and abstract views in the selected library are displayed in the Cells pane.
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Tap to Tap spacing
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Lets you specify the tap-to-tap spacing for tap cells. This value comes from the Design Rule Manual (DRM).
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Pattern
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Lets you select a pattern to place the tap cells. The options are: Regular and Checkerboard.
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Skip Row Count
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Specifies the rows that must be skipped during tap cell placement.
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Start Row Number
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Specifies the row number to place the tap cells.
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Offset from Row Start
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Specifies the initial offset of the first tap cell in each row.
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Avoid Abutment
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Specifies whether the tap cells must not be abutted vertically.
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Well Pitch
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Specifies the minimum spacing between individual components placed in the placement area.
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Well Offset
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Defines an offset from the specified alignment. This lets you leave a channel around the edge of the placement area, or align the rail slightly off-center. Both positive and negative offset values are honored.
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Related Topics
Automated Standard Cell Placement and Routing User Interface
Auto P&R Assistant User Interface for Standard Cell
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