Product Documentation
Virtuoso Design Intent User Guide
Product Version IC23.1, November 2023

Create Design Intent Form

Use the Create Design Intent form to create design intents. Access the Create Design Intent form by right-clicking an object on the canvas or in the Navigator and choosing Design Intent – Create Design Intent.

The options that are available vary between Schematics XL and Layout XL.

Field Description

Name

Specifies a unique name to identify a single or group of objects associated with the design intent. This is used as the label for the annotation on the canvas.

Style

Defines a style to identify the design intent annotation on the canvas and distinguish it from others by adjusting the Shape, Color, Font Size and Font.

Shape
Specifies the shape used to outline the design intent on the canvas. The options available depend on the category of object selected:

  • Device/Pin:
    • Circle Around Each Object
    • Bounding Box Around Each Object
    • Single Bounding Box Around All Objects
    • Elliptical Group Around All Objects.

  • MaxVoltageDrop:
    • Lightning Flash
  • HighCurrent:
    • Arrow
  • Net:
    • Bounding Box Around Each Net Segment
      • Single Bounding Box Around All Net Segments
      • Box Around All Net Segments

Color
Specifies the color used for the design intent icon in the Navigator and for the annotation label, shape, and glyph on the canvas. By default, the colors used when creating design intents now cycles through the available color palette. To create all design intents in the default color instead, set the CI_ENABLE_DI_AUTO_COLORS shell environment variable to 0 before you start Virtuoso.

Font Size
Specifies the text size used in the annotation label on the canvas.

Environment variable: diNoteFontHeight

In Schematics XL, the selected font size also changes the size of the glyph for the design intent.

Font
Specifies the font used for the annotation label on the canvas.

The following options are available only in Schematics XL.

Profile (optional)

Selects a Profile from the drop-down list.

Contains a list of predefined custom profiles to avoid duplication of effort when creating design intents. Each profile comprises a group of frequently used property configurations. The property options available are determined by the Profile you select and how it has been defined.

Note: The categories HighCurrent and MaxVoltageDrop automatically have profiles preselected, Current and Voltage respectively. These cannot be overridden.

You can also change the property profile selected for a design intent using the ciTemplateChangeDIProfile function. For more details, see Design Intent Functions.

If scopes are defined for the current profile, a combo box listing the available scopes is displayed alongside the Profile field. A scope filters the properties that are visible for the current profile.The default scope displayed is defined using the environment variable diPropDefaultScopes.

Show/Hide Disabled

Toggles the display of a list of objects available to which the MaxVoltageDrop or HighCurrent design intents can be applied, either displaying all available objects or only those that are currently selected. This button is only available for design intent types MaxVoltageDrop and HighCurrent.

Notes

Documents the schematic designer’s design goals and any additional comments. The information entered is used as the basis for the layout designer to implement the design intent. All non-Latin characters are supported.

The information entered populates the Design Notes in design intent info balloons and reports. When responding to a query or comment, Cadence recommends that you include the date and time to help track the conversation between the schematic and layout designers.

Signed Off

This option is disabled and is visible only in Layout XL.

The following options are available only in Layout XL.

Implementation Status

Indicates the layout designer’s progress in implementing the design intent into the design. The options are none, in progress, issues, failed, or complete.

This option is available in the Edit Design Intent form.

Each status has a corresponding icon which is displayed in the Navigator following synchronization.

Notes

Documents the progress or strategy used by the layout designer to implement the design intent recorded by the schematic designer in the Notes.

Use this text box to record any queries, comments, or responses relating to the implementation of the design intent.

If the design intent is being created in Layout XL, use this text box to record the reason for creating it.

The information entered populates the Implementation Notes column in reports. When responding to a query or comment, Cadence recommends that you include the date and time to help track the conversation between the schematic and layout designers.

Related Topics

Navigator Interaction with Design Intent

Property Profiles

Creating a HighCurrent Design Intent

Creating a MaxVoltageDrop Design Intent

Creating a Design Intent in Schematics XL

Creating a Design Intent in Layout XL

Design Intent Functions


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