#VLSI #TimingAnalysis #Synopsys #ChipDesign
-min : Used for hold analysis (tells the tool how early data can change). Output Delay Constraints ( set_output_delay )
The 2021 guide reinforces a golden rule of digital design: a design is only as good as its constraints. The documentation spends significant time refining the usage of create_clock and create_generated_clock , emphasizing that over-constraining or under-constraining are equally fatal to design integrity. synopsys timing constraints and optimization user guide 2021
The primary objective of the timing engine is to ensure that data arrives at the capture point early enough to meet the setup time requirement, but late enough to prevent violating the hold time requirement. 2. Establishing the Clock Network
Typically the data pin of a destination register or an output port. #VLSI #TimingAnalysis #Synopsys #ChipDesign -min : Used for
One of the most powerful features detailed in the 2021 edition is the handling of multiple constraints for different operational (e.g., fast process/slow voltage/high temperature vs. slow process/low voltage/low temperature). The guide instructs users on how to manage these scenarios simultaneously. The Timing Constraints Manager is presented as a solution for automating the process of switching and managing SDC versions as the design progresses from synthesis to placement and routing (PnR) to final signoff.
Using set_false_path and set_multicycle_path incorrectly can hide real timing violations. The 2021 guide recommends using to validate these constraints. 3. Timing Optimization Strategies in Synopsys (2021) The primary objective of the timing engine is
Typically a clock pin of a register or an input port.