This technology file keyword is used to import a Cadence Virtuoso display resource (DRF) file into Xic. The syntax is
The display resource file is generally provided by a process design kit intended to be used with Virtuoso. The file contains definitions of the layer colors and fill patterns, and other presentation attributes. Although the names may vary, the display resource file in one installation is named ``display.drf''
The display resource file (DRF) ia a collection of ``nodes'', as understood by the Lisp parser. A named node has the form
name( data ... )There can be no space between the node name and the opening parenthesis. The data are other Lisp nodes, strings, or numerical data or expressions. This can occupy arbitrarily many lines in the file. The DRF file consists of successive Lisp nodes, with names and expected content defined by Cadence.
The following top-level display resource Lisp nodes are understood by Xic. Presently, the only effect from these nodes is the creation of internal lists of data items, which are referenced by the nodes given in the Cadence ASCII technology file. Thus, reading in the display resource file has no effect on Xic operation other than providing display attributes for layers defined in the Cadence ASCII technology file.