2.3.1. Recommended Initial SDC Constraints 2.3.2. SDC File Precedence 2.3.3. Iterative Constraint Modification 2.3.4. Creating Clocks and Clock Constraints 2.3.5. Creating I/O Constraints 2.3.6. Creating Delay and Skew Constraints 2.3.7. Creating Timing Exceptions 2.3.8. Example Circuit and SDC File
220.127.116.11.1. Default Multicycle Analysis 18.104.22.168.2. End Multicycle Setup = 2 and End Multicycle Hold = 0 22.214.171.124.3. End Multicycle Setup = 2 and End Multicycle Hold = 1 126.96.36.199.4. Same Frequency Clocks with Destination Clock Offset 188.8.131.52.5. Destination Clock Frequency is a Multiple of the Source Clock Frequency 184.108.40.206.6. Destination Clock Frequency is a Multiple of the Source Clock Frequency with an Offset 220.127.116.11.7. Source Clock Frequency is a Multiple of the Destination Clock Frequency 18.104.22.168.8. Source Clock Frequency is a Multiple of the Destination Clock Frequency with an Offset
22.214.171.124. Advanced I/O Timing and Board Trace Model Delay
The Timing Analyzer can use advanced I/O timing and board trace model constraints to model I/O buffer delays in your design.
If you change any advanced I/O timing settings or board trace model assignments, recompile your design before you analyze timing, or use the -force_dat option to force delay annotation when you create a timing netlist.
Forcing Delay Annotation
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