Quartus II Settings File Reference Manual - Altera

Chapter 6: Fitter Assignments 6–205
MEMORY_INTERFACE_DATA_PIN_GROUP
MEMORY_INTERFACE_DATA_PIN_GROUP
Type
Specifies the group width (4, 9, 18, or 36), and associates a pin with another pin.
Turning on this option allows the Fitter to view the pins as part of the same memory
interface pin group. I/O pins of this pin group must be placed in the DQ pin locations
of a single DQS group. This option is ignored if is assigned to anything other than an
I/O pad, input buffer, or output buffer.
Integer
Device Support
This setting can be used in projects targeting the following device families:
■ Arria II GX
■ Arria II GZ
■ Cyclone III
■ Cyclone III LS
■ Cyclone IV E
■ Cyclone IV GX
■ HardCopy III
■ HardCopy IV
■ Stratix III
■ Stratix IV
Notes
This assignment supports wildcards.
Syntax
set_instance_assignment -name MEMORY_INTERFACE_DATA_PIN_GROUP -from
-to -entity
Example
set_instance_assignment -name MEMORY_INTERFACE_DATA_PIN_GROUP 4 -from
mem_clk[0] -to mem_clk_n[0]
See Also
■ “DQSB_DQS_PAIR” on page 6–86
■ “DQ_GROUP” on page 6–90
June 2012 Altera Corporation Quartus Settings File
Reference Manual