·Inputs for Crosstalk/Noise Analysis:
Timing Libraries (.lib**,** .db**):**
Parasitics (SPEF): Requires detailed parasitic extraction data, including accurate coupling capacitance (Cc) values between nets, along with resistance (R) and ground capacitance (Cg). This is crucial as Cc is the mechanism for crosstalk.
Netlist:
Constraints (SDC): Standard timing constraints (clocks, exceptions, etc.) are needed to determine timing windows. STA tools use timing windows to determine if aggressor and victim nets can switch simultaneously, making crosstalk delay/noise relevant.
Tool Settings/Commands: Specific settings to enable SI analysis (e.g., set si_enable_analysis true), control noise propagation thresholds, define analysis effort, etc.
Setup: cworst-ccworst and RCWorst-CCworst. Creates worst case scenario for opposite switching.
Hold: cbest-ccbest and RCbest-CCbest. It creates worst case scenario for same direction switching.