Virtuoso Schematic Composer User Guide

Form Descriptions

Add Pin Form – Schematic

Pin Names specifies the names for the pins you want to add to the design and the order in which you want to place them. To add more than one pin name, use a space to separate each name. When you enable the Bus Expansion option, you can use a bus expression to name an array of pins.

Direction contains a list of the directions you can specify for the pins you want to add.

Usage contains a list of the pin types you can specify for the pins you want to add. The default is schematic. Use offsheet only when you are going to connect the added pins to another sheet in a multisheet schematic.

Bus Expansion specifies how the system interprets bus names.

off (default) causes the system to interpret a bus name as a single name and generate a single pin that includes all the bits in the bus range. For example, for the name A<0:1>, the system generates only the pin A<0:1>.

on causes the system to interpret a bus name as multiple names and generate a pin for each bit of a bus range that you specify in the Pin Names field. For example, for the pin

A<0:1>, the system generates pins A<0> and A<1>.

Placement controls whether you can place multiple pins automatically in one operation.

single (default) requires you to point and click to identify the location for each pin.

multiple prompts you to point and click to specify the first and second pin locations. The system uses the distance between these two points as a basis for automatically placing any remaining pins.

Rotate turns the pin in 90-degree increments counterclockwise around the reference point.

Sideways mirrors the pin across an imaginary vertical line passing through the reference point.

Upside Down mirrors the pin across an imaginary horizontal line passing through the reference point.

Virtuoso Schematic Composer User Guide

Form Descriptions

Add Pin Form – Symbol

Pin Names specifies the names for the pins you want to add to the design and the order in which you want to place them. To add more than one pin name, use a space to separate each name. If you enable the Bus Expansion option, you can use a bus expression to name an array of pins.

Direction contains a list of pin directions you can specify for the pins you want to add.

Bus Expansion specifies how the system interprets bus names.

off (default) interprets a bus name as one name and generates only one pin that includes all the bits in the bus range. For example, for the name A<0:1>, the system generates only the pin A<0:1>.

on interprets a bus name as multiple names and generates a pin for each bit of a bus range that you specify in the Pin Names field. For example, for the pinA<0:1>, the system generates pins A<0> and A<1>.

Type contains a list of the valid pin types.

Placement controls whether you can place multiple pins automatically in one operation.

single (default) requires you to point and click to identify the location for each pin.

multiple prompts you to point and click to specify the first and second pin locations. The system uses the distance between these two points as a basis for automatically placing any remaining pins.

Label Offset specifies how far, in user units, the pin name (pin label) is from the pin.

Label Location specifies where the pin name (pin label) appears in respect to the pin.

Rotate turns the pin in 90-degree increments counterclockwise around the reference point.

Sideways mirrors the pin across an imaginary vertical line passing through the reference point.

Upside Down mirrors the pin across an imaginary horizontal line passing through the reference point.

Virtuoso Schematic Composer User Guide

Form Descriptions

Add Property Form – Edit Object Properties

Name specifies a name for the new property.

Type specifies a property type.

Value specifies a value for the property.

Note: To define most properties, you need to specify only the name, type, and value.

However, when you specify string, int, or float as the type, one of the following fields appears on the form.

Choices appears when Type is set to string. If the string can have more than one value, type the possible values. Entries in this field must match an entry in theValue field.

Min and Max appear when Type is set to int or float. Specify a range for the minimum and maximum range for the integer or floating-point value.

Virtuoso Schematic Composer User Guide

Form Descriptions

Add Selection Box Form

Use your mouse to indicate two opposite vertices of a rectangle that contains the objects you want to select, or click Automatic.

Automatic adds a selection box that contains all the objects that make up the symbol.