6. Now to use this, go to Electrical > Net > Routing > Impedance and select the DDR3_D0_EL(7) cell (that's a Net Class or
NCls Element), then set its entire Referenced Electrical CSet to DDR3_DATA by selecting the dropdown.
7. With that complete, you know how to apply any ECSet to any net or group of nets.
Exercise: Apply a Min/Max Propagation Delays ECSet to a group of Data bit lines (any DDR3.DQ1, DQ2, etc.).
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OrCAD X High-Speed Digital Design Guide