Dynamic Active Node Check (dyn_actnode)
Description
The active node checking analysis detects nodes with voltage changes that exceed the user-defined threshold, dv. The voltage change is defined as the peak-to-peak voltage (Vpp) within a time window.
Protected nodes are ignored from active and inactive detection.
Protectives nodes are not considered in the denominator of calculating percentage of active nodes.
The results are written to the dynamic.xml file, which can be viewed in a Web browser.
Syntax
Name dyn_actnode parameter=value ...
Parameters
Design check parameters
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node
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[...]
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Nodes to which the check is applied. Default is none.
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dv
|
0.1 v
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Voltage change threshold for the active nodes. Default is 0.1 volt.
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type
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act
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Report only inactive or active nodes or both.Possible values are act, inact and both.
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Filtering parameters
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time_window
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[tstart, tstop] sec
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Time window during which the circuit check is applied. Multiple non-overlapping time windows are supported. Default time window is 0 to tend.
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|
error_limit
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10000
|
Maximum number of errors reported. Default is 10000.
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|
fanout
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all
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Fanout setting to filter node with specified connection.Possible values are all, gate and bulk.
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filter
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optimized
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Filter setting to report all nodes or less nodes of interest. This parameter is supported only with Spectre FX. The default value is optimized.Possible values are rc, optimized and none.
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Wildcard scoping
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inst
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[...]
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Subcircuit instances to which the check is applied. Default includes all instances (inst=*).
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xinst
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[...]
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Subcircuit instances to be excluded from the check. Default is none.
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subckt
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[...]
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The instances of the specified subcircuit to which the check is applied. Default includes all subcircuits (subckt=*).
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|
xsubckt
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[...]
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The instances of the specified subcircuits that are excluded from the check. Default is none.
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|
depth
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8
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Hierarchy levels (starting from top, instance, or subcircuit scope) to be checked. Default is 8.
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Related Topics
Dynamic Active Node Check
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