Altera HardCopy II Clock Uncertainty Calculator - Manual (Page 19)

Altera Corporation 2–5
HardCopy II Clock Uncertainty Calculator User Guide
Launching the HardCopy II Clock Uncertainty Calculator
1 If the above parameters in pll_settings_summary.txt changed
during the HardCopy II design development, you should re-run
the HardCopy II Clock Uncertainty Calculator and update the
clock uncertainty constraints.
PLL_Names.txt is an optional file for the clock uncertainty calculator
spreadsheet. However, it provides useful information when using the
advanced clock uncertainty calculator worksheet, as it helps to identify
the corresponding PLL index for each PLL name.
Report Clock Transfers Using the TimeQuest Timing Analyzer
After you confirm that all clock assignments are correct, run
report_clock_transfers, or, in the Tasks pane on the TimeQuest
Timing Analyzer’s GUI, double-click Report Clock Transfers. The
command generates a summary table with the number of paths between
each clock domain, as shown in
Figure 2–4 .
Figure 2–4. TimeQuest Timing Analyzer's Report Clock Transfers
You can also use the report_clock_transfers command to generate
a report that details all clock-to-clock transfers in the design, as shown in
Figure 2–5 on page 2–6 . A clock-to-clock transfer is reported if a path
exists between two registers measured by two different clocks.