Synopsys Timing Constraints And Optimization - User Guide 2021 [work]
The 2021 guide emphasizes PrimeTime as the industry "golden" signoff tool.
: Users are guided on choosing between Graph-Based Analysis (GBA) for speed and Path-Based Analysis (PBA) for higher accuracy during the final signoff stages. 3. Optimization Strategies
: Logic that intentionally takes more than one clock cycle to complete. 2. Static Timing Analysis (STA) with PrimeTime synopsys timing constraints and optimization user guide 2021
: Use Synopsys Timing Constraints Manager to catch SDC errors before starting long synthesis runs.
: Leveraging clock gating and multi-threshold CMOS (MTCMOS) cells to reduce both dynamic and leakage power during the timing-closure process. 4. Advanced Features in the 2021 Release The 2021 guide emphasizes PrimeTime as the industry
The is a cornerstone document for digital designers using the Synopsys Galaxy Design Platform. It provides the technical framework for defining design intent through Synopsys Design Constraints (SDC) and leveraging automated optimization engines in tools like Design Compiler and IC Compiler II . 1. Fundamentals of Timing Constraints
: When the standard single-cycle timing model is too restrictive, exceptions are used: : Leveraging clock gating and multi-threshold CMOS (MTCMOS)
: Moving registers across combinational logic boundaries to balance path delays without changing the design’s functionality.
: Use report_timing with detailed options to identify if a violation is caused by logic depth, high fan-out, or poor placement.
: Automatically adding buffers to long wires to reduce interconnect delay and fix high fan-out nets.
