Character Data Representation Architecture

Appendix C. CCSID Repository

The on-line CCSID Repository contains the information on all of the CCSIDs currently registered by IBM.

This appendix contains supporting information for the CCSID Repository. Each CCSID record contains the following fields:


Field Explanation
CCSID The value of the coded character set identifier (CCSID) assigned by CDRA. Both decimal and hexadecimal forms are shown.
Note:
Wherever feasible, CCSID is assigned the same value as its CPGID element, to facilitate coexistence and migration; however, the one-to-one relationship between the two values cannot be maintained in all situations.
Name A short, descriptive name for the CCSID.
SC This indicates whether the CCSID is designated for interoperable (I) use, or is required for coexistence and migration purposes (C).
FMS This indicates whether the character set (CS) is full, maximal, growing or subset.

Full (F)
Uses all the allocated graphic character space in the ES
Maximal (M)
Does not use all the allocated graphic character space, but is the largest (maximal) set for the associated ES at the time of registering the value of CCSID by CDRA
Growing (G)
This indicates that the CCSID has a growing CS. Use the current maximal CS as the character repertoire.
Subset (S)
Does not use all the allocated graphic character space, and is a subset of another full or maximal registered character set. The number of individual graphic characters (excluding the character SPACE, whose GCGID is SP010000) in the character set is shown in parentheses as (Size ).
Registration Date This field contains the date on which the CCSID became officially registered. Note that this value is not available for some CCSIDs as originally registration dates were not recorded.
Description A description of the CCSID (may contain the language, country or standard that it is used to support).
Notes The Notes field will contain additional information about a CCSID such as CCSIDs it has superceded or if it has been replaced by a newer CCSID.
Encoding scheme The value of the encoding scheme identifier (ES), in hexadecimal form. The number of other identifiers associated with ES depends on this value.
Size The number of coded graphic characters represented by the CCSID.
MCCSID The value of the Maximal CCSID. This is the CCSID with the largest character repretoire for a particular Code Page. The Maximal CCSID is always equal to or a superset of the CCSID.
ACRI This indicates the type of Additional Coding-related Required Information. The format is T-nn, where T is the type of ACRI information, and nn references an entry in the Definition Table for that ACRI Type. See "Additional Coding-Related Required Information" for definitions of the formats for these various ACRI types. The specific ACRI value definitions are found in the CCSID Repository.
Group Graphic character sets used in different countries to support different languages have been grouped into sets with common properties.
Number of code pages The number of code page, character set pairs associated with this CCSID.
CS, CP and CCSID The registered coded graphic character set global identifier (CGCSGID): the GCSGID is in the CS column and the CPGID is in the CP column. Decimal forms are shown. Depending on the ES value, more than one pair of CS and CP may be listed.

When the character set associated with a code page is maximal, the CS value associated with a CP may be entered as X'FFFF' indicating a growing character set. The contents of the associated code page resource definition in that installation implicitly defines the associated maximal character set.

The CCSID column contains the CCSID associated with the corresponding CS, CP pair. This is especially useful when dealing with CCSIDs that contain more than one CS, CP pair.
Control Function Definition The default control function definitions associated with the CCSID. The possible values for each of the Control Function Definitions are found in the CCSID Repository.

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