Pad_to_ddio_register_delay – Altera Quartus II Settings File User Manual
Page 670
PAD_TO_DDIO_REGISTER_DELAY
Specifies the propagation delay from an input pin to the data input of the DDIO low capture input
register in the I/O cell associated with the pin. This is an advanced option that should be used only after
you have compiled a project, checked the I/O timing, and determined that the timing is unsatisfactory.
For detailed information on how to use this option, refer to the data sheet for the device family. This
option is ignored if it is applied to anything other than an input or bidirectional pin that uses DDIO
functionality.
Type
Integer
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment supports Fitter wildcards.
Syntax
set_instance_assignment -name PAD_TO_DDIO_REGISTER_DELAY -to
670
PAD_TO_DDIO_REGISTER_DELAY
MNL-Q21005
2015.05.04
Altera Corporation
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