Altera HardCopy II Clock Uncertainty Calculator - Manual (Page 14)

1–8 Altera Corporation
HardCopy II Clock Uncertainty Calculator User Guide August 2007
General Description
Figure 1–7. Clock Uncertainty Set-up and Hold Check
To obtain the clock uncertainty values from HardCopy II devices, you
should use the Altera HardCopy II Clock Uncertainty Calculator which
consists of the Tcl-based script for obtaining the PLL setting summary
and the Microsoft Excel-based spreadsheet of clock uncertainty
calculators. Both utilities are packaged in the Altera HardCopy II Clock
Uncertainty Calculator, which is available on the Altera web
site (www.altera.com).
Source
Clock
Destination
Clock
Clock hold check
with uncertainty
Clock steup check
with uncertainty
0.0 ns 5.0 ns 10.0 ns
Clock Hold Uncertainty
Clock Setup Uncertainty