Product Documentation
Virtuoso Schematic Editor SKILL Functions Reference
Product Version IC23.1, November 2023

cdsParam

cdsParam( 
n_index
)

Description

The cdsParam function displays label information, usually placed on the layer annotate drawing, about the parameter values or backannotated parameter values. This function uses information about the instance currently being drawn in order to compute the data returned by the schematic editor during a redraw. Consequently, cdsParam is only intended to be called as the value of an ILLabel on a symbol, and is not intended for direct evaluation during a program. If it is invoked directly, information on the current drawn instance will not be available.

The cdsParam function is also attached to a cell symbol view when you use the Add Symbol Label form. The Annotation Setup Form is used to control the display of this label type.

The CDF Interpreted Labels Information sections of both the library and component are also used to configure what this label displays. You can select the parameters to be displayed, the order in which they are listed, and whether their values are displayed. For more details, see Specifying cdsParam Parameters to Display in the Component Description Format User Guide.

The pertinent Interpreted Labels Information parameters are paramDisplayMode, paramLabelSet, opPointLabelSet, modelLabelSet, paramEvaluate, and paramSimType.

Arguments

n_index

Three labels are usually generated during automatic symbol generation, but you can define additional labels. The only requirement for the parameter labels is that you number them sequentially, starting with 1.

Note: By default the parameter name and its value are displayed in the following format when a value has been explicitly set on the instance,

parameter name = value (w=7u)

However, if there is no value stored on the instance but it is picking up the CDF default, the format changes so that = is replaced with : as follows,

parameter name : value (w:7u)

Value Returned

None


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