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Virtuoso Schematic Composer User Guide

Form Descriptions

Edit Object Properties Form – Pin Name

You use the Previous and Next buttons along with the Apply To options below to locate objects in your design window. When there are multiple objects in the selected set, you use the Next and Previous buttons to locate objects in the set. You use the Apply To options to specify the objects the software changes.

Previous cycles backward to view the preceding object in the selected set. When you reach the first object in the selected set, this button has no effect.

Next cycles forward to view the next object in the selected set. When you reach the last object in the selected set, this button has no effect.

Apply To consists of up to three cyclic fields that you use to specify the object, or group of objects in a selected set, whose properties you want to change. The software uses one color to highlight selected objects. But when there are multiple objects in the selected set, the software uses a second color to highlight the current object. And when you configure the cyclic fields to apply changes to multiple objects, the software uses a third color to highlight all the affected objects.

Selection scope specifies whether you want to edit only the current object, only the selected objects in the specified object type group, or all the objects in the specified object type group (which includes both selected and unselected objects of the specified object type).

Object group lists the object types in the selected set. Use this option to locate the first object of a particular object type.

Object filter appears only when the selection scope is set to all selected or all. This option acts as a secondary filter for further limiting the selection scope. The options vary depending on the selected object type.

Attachment lets you reattach the pin name to the pin.

Label specifies the text for the pin name.

Value specifies whether the system displays the property value in the schematic. You can choose off to suppress the display.

Height specifies the height of the pin label in user units.

Font specifies a font for the pin label.

Justification specifies where the label appears in relation to the pin.

October 2002

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Product Version 5.0

Virtuoso Schematic Composer User Guide

Form Descriptions

Drafting when enabled (default) maintains the normal orientation of the text when you rotate a label 180 degrees around a reference point. When disabled, rotated text appears upside down.

Overbar is only a display option. You use this option to specify whether the software displays an overbar over a pin name. When disabled (default), the software displays underscore characters ( _ ) in the pin name as part of the pin name text string. When enabled, the software interprets underscore characters ( _ ) in the pin name as toggle switches that control where overbars begin and end. Overbars appear above the pin name, as shown in the examples.

Property Name

Appears in Design Window As

_abcde abcde

ab_cde abcde

_abc_de abcde

ab_cd_ef_gh_ij abcdefghij

Caution

To avoid confusion when pin names actually contain underscore characters, Cadence recommends that you disable this display option. It is provided only for backward compatibility.

October 2002

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Virtuoso Schematic Composer User Guide

Form Descriptions

Edit Object Properties Form – Selection Box

You use the Previous and Next buttons along with the Apply To options below to locate objects in your design window. When there are multiple objects in the selected set, you use the Next and Previous buttons to locate objects in the set. You use the Apply To options to specify the objects the software changes.

Previous cycles backward to view the preceding object in the selected set. When you reach the first object in the selected set, this button has no effect.

Next cycles forward to view the next object in the selected set. When you reach the last object in the selected set, this button has no effect.

Apply To consists of up to three cyclic fields that you use to specify the object, or group of objects in a selected set, whose properties you want to change. The software uses one color to highlight selected objects. But when there are multiple objects in the selected set, the software uses a second color to highlight the current object. And when you configure the cyclic fields to apply changes to multiple objects, the software uses a third color to highlight all the affected objects.

Selection scope specifies whether you want to edit only the current object, only the selected objects in the specified object type group, or all the objects in the specified object type group (which includes both selected and unselected objects of the specified object type).

Object group lists the object types in the selected set. Use this option to locate the first object of a particular object type.

Property lists the properties that the system automatically extracts from the design database.

Shape specifies the shape of the selection box.

Upper Right specifies the coordinates for the upper right corner of the selection box.

Lower Left specifies the coordinates for the lower left corner of the selection box.

Value specifies the values for the properties. You can edit the coordinate values when the selection scope is set to only current.

October 2002

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Product Version 5.0

Virtuoso Schematic Composer User Guide

Form Descriptions

Edit Object Properties Form – Symbol Label

You use the Previous and Next buttons along with the Apply To options below to locate objects in your design window. When there are multiple objects in the selected set, you use the Next and Previous buttons to locate objects in the set. You use the Apply To options to specify the objects the software changes.

Previous cycles backward to view the preceding object in the selected set. When you reach the first object in the selected set, this button has no effect.

Next cycles forward to view the next object in the selected set. When you reach the last object in the selected set, this button has no effect.

Apply To consists of up to three cyclic fields that you use to specify the object, or group of objects in a selected set, whose properties you want to change. The software uses one color to highlight selected objects. But when there are multiple objects in the selected set, the software uses a second color to highlight the current object. And when you configure the cyclic fields to apply changes to multiple objects, the software uses a third color to highlight all the affected objects.

Selection scope specifies whether you want to edit only the current object, only the selected objects in the specified object type group, or all the objects in the specified object type group (which includes both selected and unselected objects of the specified object type).

Object group lists the object types in the selected set. Use this option to locate the first object of a particular object type.

Attachment lets you reattach the label to another component in the design.

Label specifies the label name.

Value determines whether the system displays the property value in the schematic. You can set this option to off to suppress the display.

Choice contains a list of valid label types.

Height specifies the height of the symbol label.

Font specifies a font for the symbol label.

Justification specifies where the label appears in relation to its origin (placement location).

Type specifies a label type.

normalLabel displays the label as a text string.

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Virtuoso Schematic Composer User Guide

Form Descriptions

NLPLabel evaluates the label according to netlisting rules and displays the result.

ILLabel evaluates the label as a SKILL expression and displays the result.

Drafting, when enabled (default), maintains the normal orientation of the text as you rotate a label 180 degrees around a reference point. When this option is disabled, rotated text appears upside down.

Overbar is only a display option. You use this option to specify whether the software displays an overbar over a label. When this option is disabled (default), the software displays underscore characters ( _ ) in the label as part of the label text string. When this option is enabled, the software interprets underscore characters ( _ ) in the label as toggle switches that control where overbars begin and end. Overbars appear above the label, as shown in the examples.

Label Name

Appears in Design Window As

_abcde abcde

ab_cde abcde

_abc_de abcde

ab_cd_ef_gh_ij abcdefghij

Caution

To avoid confusion when labels actually contain underscore characters, Cadence recommends that you disable this display option. It is provided only for backward compatibility.

October 2002

769

Product Version 5.0

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