Set Contention Check | Command Dictionary |
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damage can occur. This switch allows the tool to identify these conditions and notify you of their existence.
The tool identifies buses which have circuitry that prevent bus contention and does not check for bus contention problems. This eliminates false bus contention reporting when multiple inputs to a bus are at X. Bus contention that occurs on weak buses do not result in an E4 rules checking violation or pattern rejection during simulation. The tool continues to simulate them as an
X state.
∙
An optional switch that specifies for the tool to perform contention checking for
∙-BIDI_Retain (FastScan Only)
An optional switch that specifies for the tool to reject patterns during contention checking that cause the direction of IO pins to change following the capture clock.
∙-BIDI_Mask (FastScan Only)
An optional switch that causes the fault simulator to modify the input values of bidi pins to avoid bus contention after the capture clock of a device pin changes from input mode to output mode as the clock is applied.
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An optional switch that specifies for the tool to perform contention checking for both
∙
An optional switch that specifies for the tool to force all buses to a non- contention state, which ensures that the test generator will not create patterns causing bus contention.
For FastScan — After completing normal test pattern generation for a fault, the tool forces all buses to a
FastScan and FlexTest Reference Manual, V8.6_4 |