Altera Quartus II Settings File - Manual (Page 718)

RESERVE_DATA7_THROUGH_DATA5_AFTER_CONFIGURATION
Specifies how the Data[7..5] pins should be used when the device is operating in user mode after
configuration is complete. Depending on the current device and configuration scheme, these pins can be
reserved as regular I/O pins, as inputs that are tri-stated, as outputs that drive ground, as outputs that
drive an unspecified signal. If the Data[7..5] pins are reserved as a regular I/O pins, the Data[7..5] pins can
be used as ordinary I/O pins after configuration.
Type
Enumeration
Values
• As input tri-stated
• As output driving an unspecified signal
• As output driving ground
• Use as regular IO
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
None
Syntax
set_global_assignment -name RESERVE_DATA7_THROUGH_DATA5_AFTER_CONFIGURATION
Default Value
Use as regular IO
Example
set_global_assignment -name RESERVE_DATA7_THROUGH_DATA5_AFTER_CONFIGURATION
"USE AS REGULAR IO"
718 RESERVE_DATA7_THROUGH_DATA5_AFTER_CONFIGURATION
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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