Pads

Name

PadNorth, PadSouth, PadEast, PasWest - Placement of pads at the periphery of the cell

Synopsys

PadNorth ( args )

Description

These functions place the pads given as arguments at the given side of the cell (PadNorth : up north, PadSouth : down south ...). Pads are placed from bottom to top for PadNorth and PadSouth and from left to right for PadWest and PasEast.

Parameters

• args : List of pads to be placed

Example

PadSouth ( self.p_cin, self.p_np, self.p_ng, self.p_vssick0
         , self.p_vddeck0, self.p_vsseck1, self.p_vddeck1, self.p_cout
         , self.p_y[0], self.p_y[1], self.p_y[2]
         )

Errors

Some errors may occur :

• [Stratus ERROR] PadNorth : not enough space for all pads.
  The abutment box is not big enough in order to place all the pads. Maybe one could put pads on other faces of the cell.
• [Stratus ERROR] PadNorth : one instance doesn't exist.
  One of the pads given as arguments does not exist
• [Stratus ERROR] PadNorth : one argument is not an instance.
  One of the pads is not one of the pads of the cell.
• [Stratus ERROR] PadNorth : the instance ins is already placed.
  One is trying to place a pad twice.
• [Stratus ERROR] PadNorth : pad ins must be closer to the center.
  The pad name ins must be put closer to the center in order to route the cell

See Also

Introduction Layout PlaceCentric PlaceGlu FillCell Alimentation rails Alimentation connectors PowerRing RouteCk