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Using a low-skew dedicated complex pad (highly recommended)
Using a simple/complex pad and buffer in global_lowskew modeUsing a simple/complex pad and buffer in local_lowskew modeCommon to System Converter (CSC)
Using a simple/complex pad connected to a WFG (not recommended)
Using low-skew dedicated pads reduces clock skew delays in order to reach best performances during Static Timing Analysis.
Global_lowskew mode has to be used in case of registers from different tiles are on low-skew signal destination. Otherwise, if registers are in the same tile, it is enough to use local_lowskew For NG-MEDIUM/NG-LARGE, CSC is instantiated thanks to NX_BD in global_lowskew mode.
For NG-ULTRA, CSC is instantiated thanks to NX_GCK in CSC mode.
Environment:
Here after the table of compliances for this testcase.
Variant | NG-MEDIUM NG-LARGE NG-ULTRA | |
Embedded | No | |
Simulation | No | |
Attributes |
| |
IP | NX_BD NX_GCK NX_WFG | |
Methods | addModule createRegion confineModule |
Table: Design LowskewManagement environment
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NanoXmap check: After project launching, the user can check in progresslowskew.rpt that 2 clock buffers and 2 WFG are counted. Routing ways are observable in the GUI.
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Simulation check: No simulation environment is available for this testcaseand in the GUI that clocks are inserted in the lowskew through multiple ways.
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Simulation check: Clocks go through different ways without impact.
Board check: No board purpose for this testcase.
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