Description Due to an issue in the hard memory controller in the Quartus® II software version 12.1sp1, the
avl_readysignal will stay low if using 128-bit width ports. Calibration may pass successfully, but the controller will not assert the
To work around this issue, it is recommended to use port widths of 64 or less.
This issue has been fixed in Quartus II software version 13.0sp1.