Cadence PCB Best Practices

Working with Real-Time DFA Analysis

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Working with Design Partitions Design Partitioning October 2019 16 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Fixed Objects – Objects that are fixed by the master designer and exported are not owned by the partition designer. For example, if master fixes a cline, it appears as a dimmed object in the partition editor. Figure 1-5 Fixed Clines Partition Strategy for Routing The partition designer has access to the full set of interactive and automatic routing commands. Routing must be done within the boundary configuration unless the Edit Cns option is enabled. The master designer, when creating or editing partition areas, should take into account the number of crossings at the boundaries. Ideally, this number should be as low as possible to ensure efficiency across the team. Connections crossing the partition boundaries can be managed by guideports, a Rat T-like object used to facilitate routing. Only the master designer can place or edit the location of guideports. Partition designers can terminate routing at the boundary edge if the guideport location is not suitable for the final routing path. Guideport User Interface – The guideport user interface displays a suggested number and a count of the total number of guideports. Pressing the Create button generates the remaining guideports. If the Replace All button is unchecked (the default), then any existing guideports will not be affected. Once guideports are created, the master can move, delete, or spread the guideports based on the current action. Each action supports single selection or

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