Altera Quartus II Settings File - Manual (Page 652)

OPTIMIZE_FOR_METASTABILITY
This setting improves the reliability of the design by increasing its Mean Time Between Failures (MTBF).
When this setting is enabled, the Fitter will aim to increase the output setup slacks of synchronizer
registers in the design, which can exponentially increase the design MTBF. This option takes effect only if
TimeQuest is being used for timing-driven compilation. Use the TimeQuest report_metastability
command to review the synchronizers detected in your design and to produce MTBF estimates.
Type
Enumeration
Values
• Off
• On
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Fitter report.
Syntax
set_global_assignment -name OPTIMIZE_FOR_METASTABILITY <value>
Default Value
On
652 OPTIMIZE_FOR_METASTABILITY
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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