Specifications

Using Attributes 45
Using Attributes
LogicWorks allows arbitrary blocks of text to be associated with any
device, signal, or pin in a design, or with the design itself. The blocks of
text are called attributes. Attributes have a wide variety of uses, including:
 Displaying device name, component value, etc.
 Storing data for use by external systems such as simulators, PCB
layout, analysis tools, etc.
Default Values
A device symbol can incorporate predefined default values for any number
of fields. Values can be specified for the device itself, and independently
for each pin on the device.
When the standard Attributes Dialog is displayed for a device, you will see
a button labeled Use Default Value. If this button is grayed out, then there
is no default value, or the value shown is already the default.
 See Chapter 11, Device Symbol Editing, for more information on
creating default attribute values.
Attribute Limitations
Attribute fields have the following specific limitations:
 Length of field name: 16 characters
 Length of field data item: 32,000 characters.
 Number of displayed positions of a single attribute item: 100
Like all other circuit data, the amount of attribute data that can be associ-
ated with a design is limited by available memory.
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