Reset switching activity on specified objects
Syntax
reset_switching_activity [‑default] [‑type <args>] [‑hier] [‑all]
[‑no_deassert_resets] [‑quiet] [‑verbose] [<objects>...]Usage
| Name | Description |
|---|---|
[-default]
|
Reset default static probability and default toggle rate |
[-type]
|
Specify nodes in a specific category. List of valid type values: io_output, io_bidir_enable, register, lut_ram, lut, dsp, bram_enable, bram_wr_enable, gt_txdata, gt_rxdata. |
[-hier]
|
Hierarchically resets the switching activity on a hierarchical cells provided as <objects>. |
[-all]
|
Reset switching activity on all nets |
[-no_deassert_resets]
|
A switch to undo the deassertion of resets via command set_switching_activity -deassert_resets |
[-quiet]
|
Ignore command errors |
[-verbose]
|
Suspend message limits during command execution |
[<objects>]
|
Objects to reset switching activity on |
Description
Resets the attributes of the switching activity on specified nets, ports, pins, and cells in the design.
The switching activity is defined using the set_switching_activity command. The current switching activity defined for a specific port, pin, net, or cell can be found by using the report_switching_activity command.
reset_switching_activity is used to reset switching activity for specified objects. Use set_switching_activity
-default_toggle_rate or -default_static_probability to change or reset the default values for the current design.This command operates silently and does not return direct feedback of its operation.
Arguments
-default - (Optional) Reset the static probability and signal rate of the specified object.
-type <arg> - (Optional) Reset the switching activity for the specified type of logic entity. By default, the command is applied to the top-level of the current design, or to the specified <objects>. The -type option applies the command to the specified type of logic objects in the top-level of the current design. The -all option, or -hier option, can be used to modify the scope of objects the command applies to. Valid logic types include:
- io_output - Primary outputs.
- io_bidir_enable - Enable pin of Bidir ports.
- register - All register outputs in the design/hierarchy specified.
- lut - All LUT outputs in the design/hierarchy specified.
- lut_ram - All distributed ram outputs in the design/hierarchy specified.
- dsp - All DSP outputs in the design/hierarchy specified.
- bram_enable - Enable pins (ENARDEN/ENBWREN) of BRAMs.
- bram_wr_enable - Write enables of BRAMs (WEA/WEBWE).
- gt_txdata - Output TX data pins of all GTs.
- gt_rxdata - Output RX data pins of all GTs.
-hier - (Optional) Reset the switching activity across all levels of the specified hierarchical object. Without -hier, the switching activity is applied to the specified <objects> at the current level of the hierarchy.
-all - (Optional) Must be used with -type, reset the switching activity on nets within all instances of the specified -type of logic object.
-no_deassert_resets - (Optional) Disables the -deassert_resets option if it was previously enabled using set_switching_activity.
-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
set_msg_config command.<objects> - (Optional) The list of objects for which to reset the switching activity. If not specified, the command resets the switching activity on all objects.
Examples
reset_switching_activity -default [all_outputs]