FastScan and FlexTest Reference Manual, V8.6_4
2-456
Set Contention Check Command Dictionary
Set Contention Check
Tools Supported: FastScan and FlexTest
Scope: All modes
Usage
For FastScan
SET COntention Check OFf | {{ON | Capture_clock} [-Warning | -Error] [-Bus
| -Port | -ALl] [-BIdi_retain | -BIDI_Mask] [-ATpg] [-NOVerbose | -Verbose
| -VVerbose]}
For FlexTest
SET COntention Check OFf | {ON [-Warning | -Error] [-Bus | -Port | -ALl]
[-ATpg] [-Start frame#]}
Description
Specifies the conditions of contention checking.
The Set Contention Check command specifies whether contention checking is on
and the conditions under which the tool performs the checks. Contention checking
is set to On upon invocation of the tool.
When the tool encounters a bused output of a tri-state driver (or switch) that is
driving an X caused by an X on its enable, it does not report contention if the data
input to the driver is at the same level as other drivers on the bus. Also, the tool
resolves the simulated value of the bus gate to a binary value if it can do so
without tracing through additional bus gates.
Arguments
•OFf
A literal that specifies for the tool not to perform contention checking during
simulation.
•ON
A literal that specifies for the tool to perform contention checking during
simulation. FastScan does not propagate captured data effects, however,