Synopsys Timing Constraints And Optimization User Guide 2021 ✓

Fine-tune constraints to explore different trade-offs between performance, power, and area.

: Overview of technology-independent, mapping, and technology-specific optimization. Optimizing for Delay and Area : Strategies for balancing PPA (Power, Performance, Area). Sequential Optimization

set_output_delay -max 0.5 -clock SYS_CLK [get_ports data_out] set_output_delay -min -0.2 -clock SYS_CLK [get_ports data_out] Use code with caution. 5. Advanced Timing Exceptions synopsys timing constraints and optimization user guide 2021

A base clock is defined at an input port or a top-level macro pin. It establishes the initial time period and waveform.

: Creating real, virtual, and generated clocks to establish the timing baseline. Sequential Optimization set_output_delay -max 0

: Allows the tool to optimize across hierarchical boundaries, down-sizing, inverting, or eliminating redundant pin logic.

# Define a main system clock with a 10ns period and 50% duty cycle create_clock -name SYS_CLK -period 10.0 [get_ports sys_clk] Use code with caution. Generated Clocks It establishes the initial time period and waveform

False paths are paths that exist physically in the netlist but cannot execute logically, or paths that do not require timing evaluation (e.g., static configuration registers, asynchronous resets).

Timing optimization indirectly improves power efficiency by minimizing unnecessary switching activity.

Do not just look at violations; understand the critical paths and their contributing factors.

Specifying how much time the external world needs after a clock edge to capture data.