Altera HardCopy II Clock Uncertainty Calculator - Manual (Page 26)

2–12 Altera Corporation
HardCopy II Clock Uncertainty Calculator User Guide
Running the Clock Uncertainty Calculator Flow
4. Create the clock uncertainty constraint on a SDC.
For example, set_clock_uncertainty –from
altpll0:PLL0|altpll"altpll_component|_clk0 \
-to altpll0:PLL0|altpll"altpll_component|_clk1 \-setup 0.100
set_clock_uncertainty –from
altpll0:PLL0|altpll"altpll_component|_clk0 \
-to
altpll0:PLL0|altpll"altpll_component|_clk1 \ -hold 0.050.
Figure 2–12. Clock Transfer Report and Clock Uncertainty Values
For more information about the clock transfer types, refer to Chapter 1,
About HardCopy II Clock Uncertainty Calculator . In addition, there are
examples of clock transfer types in Chapter A, Clock Transfer Examples
of this user guide.