Quartus II Settings File Reference Manual - Altera

Chapter 6: Fitter Assignments 6–213
OPTIMIZE_HOLD_TIMING
OPTIMIZE_HOLD_TIMING
Type
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
use 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.
Enumeration
■ All Paths
■ IO Paths and Minimum TPD Paths
■ Off
Device Support
This setting can be used in projects targeting the following device families:
■ Arria GX
■ Arria II GX
■ Arria II GZ
■ Arria V
■ Cyclone
■ Cyclone II
■ Cyclone III
■ Cyclone III LS
■ Cyclone IV E
■ Cyclone IV GX
■ Cyclone V
■ HardCopy II
■ HardCopy III
■ HardCopy IV
■ MAX II
■ MAX V
■ Stratix
■ Stratix GX
■ Stratix II
■ Stratix II GX
■ Stratix III
June 2012 Altera Corporation Quartus Settings File
Reference Manual