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Describes the syntax for Library Exchange Format (LEF) and Design Exchange Format (DEF) files.
LEF/DEF to LEF/DEF Equivalence. In DEF syntax, \ is only used to escape characters that have a special meaning if they are not escaped. Consider the following LEF/DEF header specification:
LEF/DEF 5.8 Language Reference May 2017 7 Product Version 5.8 Preface This manual is a language reference for users of the Cadence® Library Exchange Format (LEF) and Design Exchange Format (DEF) integrated circuit (IC) description languages. LEF defines the elements of an IC process technology and associ ated library of cell models.
LEF/DEF utilities. If your system's native Make program returns errors when building LEF/DEF, use GNU Make, or change the Makefiles so that they work on your system.
lefdef. The Library Exchange Format (LEF) and Design Exchange Format (DEF) libraries are distributed by https://si2.org under the Apache 2.0 license, but to download them you have to fill out a form and wait days for them to email an expiring link.
(LEF) and Design Exchange Format (DEF) integrated circuit (IC) description languages. LEF defines the elements of an IC process technology and associ ated library of cell models. DEF defines the elements of an IC design relevant to physical layout, including the netlist and
LEF/DEF Downloads. Library Exchange Format and Design Exchange Format (LEF/DEF) are accepted standards for place and route design tools. They are developed by Cadence Design Systems and distributed by Si2.
