LEF Filename

Specifies a path and name for the LEF file to export or use the Browse button to specify a location.

Export Geometry LEF Data

Lets you choose the geometry LEF to be exported. All the LEF information is written to the specified LEF Filename.

The following example shows the variants of LEF data that can be exported from Abstract Generator:

Geometry LEF data

PIN A
  DIRECTION INPUT ;
  PORT
  LAYER METAL1 ;
  RECT 0.715 1.845 1.105 2.490 ;
  END
END A

Tech LEF data

LAYER METAL1
TYPE ROUTING ;
DIRECTION HORIZONTAL ;
PITCH 0.56 ;
WIDTH 0.23 ;
SPACING 0.23 ;
RESISTANCE RPERSQ 0 ;
CAPACITANCE CPERSQDIST 0 ;
THICKNESS 0.1 ;
ANTENNALENGTHFACTOR 0.00208 ;
CURRENTDEN 0 ;
END METAL1

Export Tech LEF Data

Lets you choose the technology LEF to be exported. All the LEF information is written to the specified LEF Filename. The following example shows the variants of LEF data that can be exported from Abstract Generator:

LAYER METAL1
TYPE ROUTING ;
DIRECTION HORIZONTAL ;
PITCH 0.56 ;
WIDTH 0.23 ;
SPACING 0.23 ;
RESISTANCE RPERSQ 0 ;
CAPACITANCE CPERSQDIST 0 ;
THICKNESS 0.1 ;
ANTENNALENGTHFACTOR 0.00208 ;
CURRENTDEN 0 ;
END METAL1

Cell List Filename

Exports LEF information for only the specified cells. The list of cells, whose LEF information is to be exported, is specified in a cell list file, with one cell name per line. Specify the name of this cell list file in the field or use Browse to specify the file’s location. This is an optional field. For related messages, see ABS-16103 and ABS-16104.

If you specify a cell list file, the Export LEF for Bin option gets disabled.

LEF Version

Lets you select the version of LEF that you want to export.

Export LEF for Bin

Selects the bins for which you want to export the LEF data. You can export LEF for all the cells in your library or on a bin-by-bin basis.

Bus characters and Divider character

Lets you select the characters you want to use to represent buses (< > or [ ]) and pseudohierarchy ( / or | ), respectively, in your LEF.