Allegro PCB Designer RAKs

Allegro Constraint Compiler

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Allegro Constraint Compiler: Workshop Learn more at Cadence Support Portal - https://support.cadence.com © 2019 Cadence Design Systems, Inc. All rights reserved w orldw ide. Page 26 Object Rule Table (Class-to-Class Rules) Example: ObjectRul e MY_CLA SS Revision 1 Created by Cadence Header Type=Intra- Group Type=BYTE Type=ADDR Type Rule Spacing Rule Spacing Rule Spacing Rule Data BYTE HS_SPACE:30 MIL HS_SPACE:6MI L HS_SPACE:HS_15 MIL HS_SPACE:25 MIL End Results: Spacing for the group of nets in Type BYTE will be checked with respect to all other Nets using Rule Set 30MIL from the HS_SPACE Rule Specification. Spacing for nets contained in Type BYTE (Intra-Group) will be checked with respect to each other using Rule Set 6MIL from the HS_SPACE Rule Specification. Spacing for a group in Type BYTE will be checked with respect to other Type BYTE groups using Rule Set 15MIL from the HS_SPACE Rule Specification. Spacing for each group in Type BYTE will be checked with respect to Type ADDR groups using Rule Set 25MIL from the HS_SPACE Rule Specification. Rule columns could also reference existing CSets SpacingCSet:. Type designations will result in a Spacing Net Class with an "NC_" prefix in Layout using the group name defined in the Object table.

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