Altera Quartus II Settings File - Manual (Page 146)

PRESERVE_FANOUT_FREE_NODE
Prevents a register that has no fan-out from being removed during synthesis.
Type
Boolean
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
None
Syntax
set_instance_assignment -name PRESERVE_FANOUT_FREE_NODE -to <to> -entity
<entity name> <value>
Example
set_instance_assignment -name preserve_fanout_free_node on -to reg
146 PRESERVE_FANOUT_FREE_NODE
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
Send Feedback