Product Documentation
Virtuoso Floorplanner User Guide
Product Version IC23.1, November 2023

Converting a Pin into a Rail

To convert a pin into a rail,

  1. From the layout window menu bar, choose Floorplan – Pin Planner.
    The Pin Placement form is displayed.
  2. Choose Unplaced from the Status or Type drop-down list.
  3. Select a pin from the pin table.
    To select multiple pins to be converted to a rail, hold down the Ctrl key and select the pins.
  4. Choose an edge from the Edge drop-down list.
  5. Click Apply. The pin is placed on the boundary. If you have selected multiple pins, they will all be placed on the boundary.
  6. Select the pin in the layout and do one of the following:
    • Click HRail to convert it into a horizontal rail.
    • Click VRail to convert it into a vertical rail.
    When a pin is changed into a rail, it becomes aligned with two edges of the boundary. For a horizontal rail, the alignment is to the left and right edges. For a vertical rail, the alignment is the bottom and top edges. The rail stretches with the boundary in the Constraint-Aware Editing mode.
    The Pin Placement form does not distinguish layer information when the pins are placed on the boundary edges. For example, you cannot convert a metal2 pin to a rail if that pin occupies the same location as a metal1 pin.
  7. (Optional) Use the Constraint Manager Assistant to view the alignment constraints on the rail.

Converting a Rail into a Pin

To convert a rail back into a pin:

  1. From the layout window menu bar, choose Floorplan – Pin Planner.
    The Pin Placement form is displayed.
  2. In the layout window, select the rail you want to change.
  3. In the Pin Placement form, click unHRail or unVRail as required.
    The rail is converted back into a pin and returned to its original size and edge, regardless of the railing direction.

Related Topics

Pin Placement Form

Planning Placement of Top-Level and Level-1 Pins


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