The Charset Attribute Type is a data type defined by XHTML Modularisation 1.1, declared in the DTD as XML 1.0 type CDATA.
Reference: *W3C - XHTML Modularisation 1.1 - Attribute Types
There are no Common Attributes with type Charset.
An RFC2045 Character Encoding, e.g. "utf-8", "US-ASCII" or "ISO-8859-1"
Ref: *RFC2045
The Charset Attribute Type is used in XHTML 1.1 exclusively for the
charset attributes of
the elements a,
link and
script.
For reference: *list of approved character sets
published by the IANA (use the
preferred MIME name
of the character set in question).