Timing constraints are the "instructions" that tell synthesis and implementation tools how fast a design must run. Without accurate constraints, optimization results are essentially meaningless.
In conclusion, Synopsys Timing Constraints and Optimization User Guide 2021 provides a comprehensive guide to constraining and optimizing digital designs for timing performance. By following the guidelines and best practices outlined in this guide, designers can achieve optimal timing results and ensure that their designs meet the required specifications.
Are you primarily focusing on or sign-off timing (PrimeTime) ? synopsys timing constraints and optimization user guide 2021
[ RTL Code + SDC Constraints ] | v [ Translation & Elaboration ] | v [ Logic Optimization & Structuring ] <--- Cost Function Matrix | v [ Gate Mapping (Target Technology) ] | v [ Optimized Gate-Level Netlist ] The Cost Function Matrix
: Guidance on applying set_false_path and set_multicycle_path to prevent the tool from over-optimizing non-critical or multi-cycle signals. Optimization Strategies : By following the guidelines and best practices outlined
: Use create_clock for primary clocks and create_generated_clock for derived clocks (e.g., dividers or multipliers).
Synopsys tools provide several optimization techniques to improve the timing performance of a design. These techniques include: Optimization Strategies : : Use create_clock for primary
Clocks are the heartbeat of synchronous designs. Precise clock modeling is the most critical factor in achieving reliable timing analysis. Ideal vs. Propagated Clocks
set_input_delay defines the amount of time a signal requires to arrive at an input port relative to a clock edge outside the design.