Altera Quartus II Settings File - Manual (Page 714)

RESERVE_DATA1_AFTER_CONFIGURATION
Specifies how the Data[1]/ASDO pin should be used when the device is operating in user mode after
configuration is complete. Depending on the current device and configuration scheme, this pin can be
reserved as a regular I/O pin, as an input that is tri-stated, as an output that drives ground, as an output
that drives an unspecified signal, or compiler configured. If the Data[1]/ASDO pin is reserved as a regular
I/O pin, the Data[1]/ASDO pin can be used as an ordinary I/O pin after configuration. If the Data[1]/
ASDO pin is only used to interface with external memory for configuration, the Data[1]/ASDO pin
should be reserved as compiler configured.
Type
Enumeration
Values
• As input tri-stated
• As output driving an unspecified signal
• As output driving ground
• Compiler configured
• 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_DATA1_AFTER_CONFIGURATION
Default Value
As input tri-stated
Example
set_global_assignment -name RESERVE_DATA1_AFTER_CONFIGURATION "USE AS
REGULAR IO"
714 RESERVE_DATA1_AFTER_CONFIGURATION
MNL-Q21005
2015.05.04
Altera Corporation Quartus Settings File Reference Manual
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