Synopsys Timing Constraints And Optimization User Guide 2021 |work| Jun 2026

: Splitting long, highly loaded wires to clean up slow signal transition times (slew).

The guide emphasizes the importance of propagating clock delays for accurate analysis. While initially clocks are ideal, after clock tree synthesis (CTS), you use the set_propagated_clock command to switch to . This results in clock delay being based on actual network parasitics and source latency, rather than a user estimate. synopsys timing constraints and optimization user guide 2021

: Managing paths that do not follow standard single-cycle behavior, such as False Paths and Multi-Cycle Paths (MCP) . : Splitting long, highly loaded wires to clean

Based on best practices in 2021, a "garbage in, garbage out" philosophy applies to timing constraints. This results in clock delay being based on

Are you struggling with violations or hold violations? Are the failures occurring on internal paths or I/O ports ?

Clocks are the most important part of timing. The guide shows you how to define your main clock. It also teaches you how to create "generated clocks," which are smaller clocks born from the main one. 2. Input and Output Delays