Altera Quartus II Settings File - Manual (Page 38)

ALLOW_XOR_GATE_USAGE
Allows the Compiler to use the XOR gate that exists in a macrocell (that is, in an embedded cell within an
Embedded System Block [ESB] that is set to use Product Term mode). This option is ignored if you select
'LUT' or 'ROM' as the setting for the Technology Mapper option.
Type
Boolean
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Analysis & Synthesis report.
This assignment supports synthesis wildcards.
Syntax
set_global_assignment -name ALLOW_XOR_GATE_USAGE <value>
set_global_assignment -name ALLOW_XOR_GATE_USAGE -entity <entity name>
<value>
set_instance_assignment -name ALLOW_XOR_GATE_USAGE -to <to> -entity <entity
name> <value>
Default Value
On
Example
set_instance_assignment -name allow_xor_gate_usage off -to clock
38 ALLOW_XOR_GATE_USAGE
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
Send Feedback