When the calibration stage causing the failure is known, the failing rank, byte, nibble, and/or bit position and error status for the failure can be identified using the XSDB registers listed here.
| XSDB Reg Name | Description |
|---|---|
| CAL_ERROR_BIT_*_* | Bit position failing |
| CAL_ERROR_DATA_NIBBLE_*_* | Data nibble or byte position failing |
| CAL_ERROR_PHY_NIBBLE_*_* | PHY nibble or byte position failing |
| CAL_ERROR_RANK | Rank failing |
| CAL_ERROR_CODE | Error code specific to the failing stage of calibration. |