Altera HardCopy II Clock Uncertainty Calculator Manuel d'utilisateur télécharger pdf (Page 23)

Altera Corporation 2–9

HardCopy II Clock Uncertainty Calculator User Guide

Launching the HardCopy II Clock Uncertainty Calculator

Refer to the highlighted column in Figure 2–9 of the clock transfer report

and PLL_Names.txt for the following procedures:

1. From the clock transfer report, trace the pin or port under "From

Clock".

For example, altpll0:PLL0|altpll"altpll_component|_clk1.

2. Refer to the PLL_Name.txt file to and see what the PLL index is

associated to.

For example, altpll0:PLL0|altpll"altpll_component associates to

PLL_2.

3. From the clock transfer report, trace the pin or port under "To

Clock".

For example, altpll0:PLL1|altpll"altpll_component|_clk0.

4. Refer to the PLL_Name.txt file in Figure 2–9 to see what the PLL

index associated to.

For example, altpll0:PLL1|altpll"altpll_component associates to

PLL_1.

You now know the source clock from PLL_2 and the destination

clock from PLL_1.

5. Enter 2 and 1 into the first PLL cell of the source clock and the

destination clock, respectively, as shown in Figure 2–10 on

page 2–10.

Figure 2–9. Clock Transfer Report and PLL_Names.txt

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 61 62

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Altera HardCopy II Clock Uncertainty Calculator Manuel d'utilisateur Page 23