Altera Quartus II Settings File - Manual (Page 653)

OPTIMIZE_HOLD_TIMING
Allows the Fitter to optimize hold time by adding delay to the appropriate paths. The Optimize Timing
option must be turned on in order for this option to work. If you are using the TimeQuest Timing
Analyzer, and specify the I/O paths and Minimum tpd Paths setting, all assignments involving I/O pins
are optimized. Specifying the All Paths setting directs the Fitter to optimize the hold time of all paths.
Turning off this option directs the Fitter not to optimize the hold time of any paths.
Type
Enumeration
Values
• All Paths
• IO Paths and Minimum TPD Paths
• Off
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_HOLD_TIMING <value>
MNL-Q21005
2015.05.04
OPTIMIZE_HOLD_TIMING 653
Quartus Settings File Reference Manual Altera Corporation
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