Some are variable-width encodings, employing locking shift codes to switch between single-byte and double-byte modes.
[1] Unlike other EBCDIC locales, the lowercase basic Latin letters are often not preserved in their usual locations.
Variants of EBCDIC favoured by a given vendor for use for katakana are sometimes referred to as EBCDIK, standing for Extended Binary-Coded Decimal Interchange Kana code.
[1][4] Code pages incorporating half-width kana are an exception to IBM's EBCDIC invariant character set, which specifies a set of characters which are usually encoded the same across all EBCDIC code pages.
Most notably, they sometimes include katakana characters at code points which are used for lowercase letters of the Basic Latin alphabet in the invariant set.
[17] These are DBCS-Host encodings, using different shift codes to switch between single-byte EBCDIC and double-byte modes.
[33] This revision updated the set for JIS X 0213, including the Euro sign and, while retaining the CPGID 300, was assigned the new CCSID 16684.