ces-ds0 pages

Constraint Editor System
System Design
Reduce Costs and Accelerate Time-to-Market
D A T A S H E E T
MAJOR BENEFITS:
• Single, integrated constraint entry and
edit tool for design, layout, analysis, and
manufacturing rules.
• Powerful and easy-to-use spreadsheetlike GUI guided by the design database
and cross probing to applications.
• Hierarchical constraint entry speeds input
of complex rules on many objects.
• Speeds time-to-market with informal and
formal constraint reuse, concurrent
constraint entry, and editing.
CES spreadsheets integrated to schematic and layout environments.
• Improves design productivity with
extensions allowing in-tool constraint
editing.
Introduction
As PCBs increase in complexity and density, a higher percentage of the design must be implemented with strict adherence to
design rules. Manual documentation, translation, and interpretation of design rules often cause longer product development
cycles and increased costs. The Constraint Editor System (CES) provides a fully integrated, constraint-driven design
methodology that reduces design costs and time-to-market by automating design rules communication and eliminating
unnecessary PCB prototypes and re-spins. CES provides both electrical engineers and PCB designers with direct control over
the most advanced routing technology in AutoActive to solve current and future system design requirements.
Constraint Integration throughout the Design Flow
CES supports bi-directional cross probing, highlighting and selection between a spreadsheet-based constraint interface, and
schematic capture and physical design tools in the flow. Constraint values are fully synchronized during the forward and
backward annotation processes with intelligent handling of connectivity changes. CES also supports importing constraint
templates developed with HyperLynx LineSim®.
Concurrent Design
Increased complexity puts more pressure on design teams to get things done on time. CES allows many designers to work on
the constraint data at the same time. The CES database architecture was designed to allow multiple edits simultaneously. This
eliminates overhead of manual techniques that other systems must use. CES provides locking mechanisms to prevent
concurrent users from editing the same data, and it also provides notification of who is changing which data to the team. This
means projects schedules can be met by applying more resources to a project.
Constraint Reuse
CES allows reuse of many of the simple and complex rules that have been created. Constraint templates can be used to copy
constraints from one net to another net or an entire bus, including custom ordering, net constraints, and pin pair constraints.
These templates can be used on other designs as well. CES also supports Reusable Blocks, allowing designers to use an entire
circuit, constraints, and physical layout data from one design into another design. Reusing constraints saves time and improves
quality by allowing the designer to use a previously completed and verified circuit instead of creating a new one.
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