Database Preparation for IO Planning and Placement

In database preparation, IO Placer requires information about the technology file, site pattern, and cell type for pads, fillers, and corners.

In the technology file, ensure that at least one site definition exists and is of a PAD type.

• Site Pattern: Lets you define a site pattern for each instance, that is, pad, corner, filler. A site pattern is a set of site definitions. The site definition is read from the technology file.
• Setting the Cell Type: The various cell types for the I/O planning and placement are shown in the table below:
  

  I/O	OpenAccess Object	Cell Type	Supported By
  I/O	PadCellType PadSpacerCellType CornerCellType PadAreaIOCellType CoverBumpCellType	pad padAreaIO padSpacer corner padAreaIO coverBump	PAD placement Filler Cell Corner Cell Not Supported Not Supported

Related Topics

Technology file

Constraint Group Definitions

Setting the Cell Type