CDRA defines the range of values for CCSIDs (coded character set identifiers).
The values include:
| CCSID value | Purpose or meaning |
|---|---|
| 00000 | Use next higher hierarchical CCSID |
| 00001 through 65533 | IBM-registered CCSIDs |
| 65534 | Refer to lower hierarchical CCSID |
| 65535 | No automatic conversion of data between this CCSID and any other CCSID. (This is the default setting of the QCCSID system value.) |
CDRA uses a tag field to hold a CCSID value to identify the meaning of coded graphic characters. The tag field might be in a data structure that is logically associated with the data object (explicit tagging), or it might be inherited from the tag field associated with the other objects within the operating system (implicit tagging).