Synopsys Timing Constraints And Optimization User Guide 2021 (2024)

A detailed comparison of AI responses may include mistakes. Learn more Synopsys Synplify Pro for Microchip User Guide

Note: The engine will actively sacrifice area and power to fix a Max Transition or a Setup timing violation. Key Optimization Commands High-Effort Optimization

set_max_transition 0.25 [current_design] set_max_capacitance 0.5 [current_design] set_max_fanout 20 [current_design] Use code with caution. 7. Analyzing Timing and Troubleshooting Violations

Not all paths should be constrained by a single clock period. The user guide explains how to use to override default single-cycle timing checks. The primary commands for this are: synopsys timing constraints and optimization user guide 2021

The 2021 guide introduces a tiered optimization flow:

Placing cells to minimize net length on critical paths.

High-fanout nets are treated as "ideal" or handled via basic buffer trees. A detailed comparison of AI responses may include mistakes

-retime : Enables adaptive register pipelining (moving registers across combinational logic boundaries to balance slack). Structuring vs. Flattening

Allowing the tool to optimize across module boundaries.

Modeling jitter and skew. 5. Static Timing Analysis (STA) with PrimeTime The primary commands for this are: The 2021

Design Compiler in 2021 continues to integrate advanced algorithms to balance area and power without sacrificing timing. Strategies for Optimization

Best Practice: Define all base clocks at the top level and ensure create_generated_clock handles internal clock derivation.