Definitions for "Code page"
(1) An assignment of graphic characters and control function meanings to all code points; for example, assignment of characters and meanings to 256 code points for an 8-bit code, or assignment of characters and meanings to 128 code points for a 7-bit code. (2) A particular assignment of hexadecimal identifiers to graphic characters.
In the context of this documentation, the character encoding of the field data.
IBM] A specification of code points for each graphic character in a set or in a collection of graphic character sets. Within a code page, a code point can have only one specific meaning.