Synopsys Timing Constraints And Optimization User Guide 2021 ◆ (ORIGINAL)
set_clock_uncertainty): This command models clock skew and jitter. In 2021 designs, with higher frequencies, modeling jitter accurately is critical. The guide distinguishes between setup uncertainty (reduces the available time) and hold uncertainty (adds margin).Don't read it front to back. Do this instead:
The Synopsys Timing Constraints and Optimization User Guide 2021 remains an essential technical manual. It bridges the gap between the designer's intent and the EDA tool's execution engine. Mastery of SDC, as presented in this guide, is mandatory for achieving timing closure in modern VLSI designs. It effectively transitions the user from basic clock definition to complex multicorner optimization strategies required for sub-micron technologies. synopsys timing constraints and optimization user guide 2021
Clock gating saves power but kills timing if done wrong. The 2021 guide dedicates an entire chapter to Clock Gating Path Optimization. Don't read it front to back
