Description
In the Quartus® II software version 9.0 SP1 and earlier, the Chip Planner Resource Property Editor displays the Stratix® III D6 delay chain values as 0 to 7. However, Stratix III devices actually support only values from 0 to 6, as documented in the Stratix III Handbook. When you set the value of the D6 delay chain to 7 with a Resource Property Editor ECO, the setting is ignored without any warnings.
The invalid value 7 will be removed in a future version of the Quartus II software.