9. To put nets into a matched group, click, then hold and drag the mouse to highlight all the nets of interest (DDR_DQ0
through DDR_DQ31 in this case). After that right click any of the selected nets and choose Create > Match Group. A new
window appears.
10. Give the match group a name, like DDR_DQ, then click Ok (Ensure that the Preserve Existing Membership checkbox is
enabled).
11. The group gets created and is shown in the worksheet.
12. To see the analysis of the routed traces with respect to their pin delays and Relative Delays, right click on the Match
Group that was just created (DDR_DQ(32)), then choose Analyze.
13. There will be color codes (yellow if not in range, green if fully in range, red if problematic) to show you which traces are
within tolerance of the longest Driver Receiver pair.
Impact: Prevents timing issues and ensures reliable data transmission for parallel signal communication (e.g. DDR3).
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OrCAD X High-Speed Digital Design Guide
