Altera Quartus II Settings File - Manual (Page 591)

GXB_CLOCK_GROUP
Specifies GXB core clock groups to be merged after compilation. All specified GXB transmitters in the
GXB shared clock group are driven by the clock source specified in the GXB shared clock group driver.
All clocks in the GXB shared clock group and GXB clock group driver must be configured in the same
manner. When the destination GXB transmitter is listening to a signal such as gxb_powerdown, disable
the GXB shared clock group driver source. Follow the Altera High Speed I/O Applications Technical
Support recommendations when using this assignment.
Type
Integer
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment supports Fitter wildcards.
This assignment supports synthesis wildcards.
Syntax
set_instance_assignment -name GXB_CLOCK_GROUP -to <to> -entity <entity
name> <value>
MNL-Q21005
2015.05.04
GXB_CLOCK_GROUP 591
Quartus Settings File Reference Manual Altera Corporation
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