Product Documentation
Spectre Circuit Simulator Reference
Product Version 23.1, September 2023

Dynamic Power Density Check (dyn_powerdensity)

Description

Max-AVG power density is reliability analysis on circuits, it will extract max-pwr using sliding window.

The results are written to the dynamic.xml file, which can be viewed in a Web browser.

Syntax

Name dyn_powerdensity parameter=value ...

Parameters

Design check parameters

Filtering parameters

time_window

[tstart, tstop] sec

The time window during which the circuit check is applied. Multiple non-overlapping time windows are supported. Default time window is 0 to tend.

window

10e-9 sec

Width of a measuring window for average power calculation. These measure-windows will be inside the time_window. If not specified, there will be only one measure-window and it will be equal to time_window.

shift

5.00E-09 sec

Time shift between two measure-windows. Default is 5.00E-09 sec.

error_limit

10000

Maximum number of errors reported. Default is 10000.

Wildcard scoping

inst

[...]

Subcircuit instances to which the check is applied. Default includes all instances (inst=*).

xinst

[...]

Subcircuit instances to be excluded from the check. Default is none.

subckt

[...]

The instances of the specified subcircuit to which the check is applied. Default includes all subcircuits (subckt=*).

xsubckt

[...]

The instances of the specified subcircuits that are excluded from the check. Default is none.

depth

8

Hierarchy levels (starting from top, instance, or subcircuit scope) to be checked. Default is 8.


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