Cadence PCB Best Practices

Electrical Design, Mechanical Design Incremental Data Exchange in Allegro PCB Editor October 2019 21 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. If the IDX import cannot determine the pad stack, the pad stack selection GUI will open requesting the user to select a definition from the pad stack library to be used to create the hole symbol. Allegro Symbol Exported Data Allegro exports IDX symbol data using the symbol geometry and properties. The exported symbol data are: ■ Symbol origin XY location ■ Placement Layer (Top, Bottom) ■ Rotation ■ Symbol geometry extents ❑ PLACE_BOUND_TOP/PLACE_BOUND_BOTTOM (combined if multiple) ❑ Derived place bound outline (no PLACE_BOUND present) ■ Package_Height_Max value: (in order of precedence) ❑ Package property height value. ❑ Place bound top/bottom maximum height value if multiple. ❑ Board drawing default height

• Cover
• Contents
• Electrical Design, Mechanical Design Incremental Data Exchange (IDX)
• Introduction
• ECAD/MCAD Library Synchronization
• EDMD Schema Design Data Cycle
• MCAD to Allegro with MCAD Baseline Initiation
• Allegro to MCAD with Allegro Baseline Initiation
• Incremental Changes
• Final Baseline - Re-baseline
• IDX Filter
• IDX Data
• The Baseline File
• Incremental Files
• Transaction Files
• IDX Properties
• Object Mapping
• Board Outline
• Keep-in Areas
• Keep-Out Areas
• Height Restriction Management
• Vias
• Hole Mapping
• Allegro Symbol Exported Data
• Allegro IDX Settings
• PTC's Creo Parametrics Configuration Settings
• Configuration Variables
• Configuration Parameters
• Drawing objects