Cadence PCB Best Practices

Working with Real-Time DFA Analysis

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Working with Design Partitions Design Partitioning October 2019 10 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. ■ FIXED_T_TOLERANCE ■ DYN_CLEARANCE_OVERSIZE ■ NET_PHYSICAL_TYPE ■ DYN_CLEARANCE_TYPE ■ NET_SHORT ■ DYN_DO_NOT_VOID ■ NET_SPACING_TYPE ■ DYN_FIXED_THERM_WIDTH ■ NO_PIN_ESCAPE ■ DYN_MAX_THERMAL_CONNS ■ NO_RAT ■ DYN_MIN_THERMAL_CONNS ■ NO_ROUTE ■ DYN_OVERSIZE_THERM_WIDTH ■ NO_SHAPE_CONNECT ■ DYN_THERMAL_BEST_FIT Getting Started: Generating Partition Areas The master designer begins by determining the number of partition areas to allocate across the team. Partitions are defined on the x,y plane and are infinite in the vertical direction. There are three methods to consider when creating partition areas: ■ Shape-based boundaries (rectangle or polygon) ■ Construction lines (slicing) ■ Copy existing boundaries (room, board outline, constraint area) Shape-based rectangles or polygons are used to create custom areas, whereas construction lines are used to promote a quick slice approach. Once exported, neither the master nor partition designer can edit partition boundaries. If the physical characteristics of a partition need to be altered after export, the master can either

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