Allegro Constraint Compiler: Workshop
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length within the Tolerance.
Propagation Delay will keep the Pin-Pair connection below the Max length.
Match Group name is based on the Net Class name with the prefix "MG_"
when imported into Constraint Manager.
Object Rule Table (Class-to-Class Rules)
The Object Rule Specification table can also be used to create Class-to-Class
relationships between Type classifications defined in an Object table. Objects grouped
under a Type classification will be processed to generate the required Spacing Net
Classes to support the Class-to-Class spacing requirements. Each Type-to-Type
relationship must reference either a Rule Specification, Rule Specification: Rule Set, or
an existing Spacing Constraint Set (Spacing Set:), so the appropriate rule
can be applied.
Column Header Descriptions
Type
Type classification assigned to objects in an Object table (first Class-to-Class
Relationship)
Update the name to match the Type classification name in the Object table
Rule
Rule Specification and Rule Set reference for the selected objects
Rule Specification Name:Rule Set Name
Can also reference existing Constraint Set in Layout
(PhysicalCSet:, SpacingCSet:, etc.)
Controls the spacing between nets in Type classification to all other nets in the
design
Spacing Rule
Rule Specification and Rule Set reference for the selected objects
Rule Specification Name:Rule Set Name or Rule Specification Name
when Rule= is not present in Rule Specification
Can also reference existing Constraint Set in Layout - SpacingCSet:
Note: Companion column header to "Type=Intra-Group" and "Type="
headers
Type=Intra-
Group
Controls the spacing between members within Type (Type Column)
Type=
Controls the spacing between Type (Type column) and Type= (second
Class Relationship)
Update "" in Type= to match the Type classification name in the
Object table
Add more Spacing Rule columns for addition Class-to-Class Relationships
