Default_input_io_toggle_rate=<toggle rate value, Examples, Default_toggle_rate=<toggle rate value – Altera Quartus II Scripting User Manual

Page 81: Estimate_power[=on|off, Input_saf[=<saf filename, Input_saf[=<saf filename>] –55

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Chapter 2: Command-line Executables

2–55

quartus_pow

© July 2013

Altera Corporation

Quartus II Scripting Reference Manual

--default_input_io_toggle_rate=<toggle rate value>

Option to specify a default toggle rate to be used on input I/O pin signals during power analysis. This
value is used if an input I/O pin's toggle rate is not specified by some other mean such as an input file or
user assignment. To specify a default toggle rate for all other signals in the design use the
--default_toggle_rate command line option.

This value can be specified as a percenatge or an absolute value. If specified as an absolute value, the unit
is transitions/s.

Examples

--default_input_io_toggle_rate=12.5%
--default_input_io_toggle_rate=150000transitions/s
--default_input_io_toggle_rate="150000 transitions/s"

This command line option can only appear once. If this command line option is not used, then the value
stored in the Quartus II Settings File (.qsf) is used to determine the default input I/O pin toggle rate.

Note: The default static probability value used by the PowerPlay Power Analyzer is 0.5.

--default_toggle_rate=<toggle rate value>

Option to specify a default toggle rate to be used for all output signals except input I/O pin signals during
power analysis. This value is used if a signal's toggle rate is not specified by some other mean such as an
input file or user assignment and vectorless estimation should not be used.

This value is specified as a percenatge or as an absolute value. If specified as an absolute value, the unit is
transitions/s.

Examples

--default_toggle_rate=12.5%
--default_toggle_rate=150000transitions/s
--default_toggle_rate="150000 transitions/s"

This command line option can only appear once. If this command line option is not used, then the value
stored in the Quartus II Settings File (.qsf) is used to determine the default toggle rate.

Note: The default static probability value used by the PowerPlay Power Analyzer is 0.5.

--estimate_power[=on|off]

Option to specify whether a power estimate should be produced.

Specifying a value of "off" reduces processing time. For example, specify the value "off" for this option if
the only desired action is to process a Value Change Dump (VCD) file to produce a Signal Activity File
(SAF).

By default, a power estimate is produced.

--input_saf[=<SAF Filename>]

Option to use the specified Signal Activity File (.saf) as input. The SAF contains toggle rates and static
probabilities for output signals in the design. If no filename is specified then the filename stored in the
Quartus II Settings File (.qsf) is used or if no filename exists in thethe QSF, then <revision name>.saf is
used. This command line option can only appear once.

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