| Description | The FC-4 Features associated with FC-4 Types on this
port encoded as a 128-byte value in network-byte order,
or the zero-length string if no 'FC-4 Features' have been
registered.
Section 5.2.3.15 of FC-GS-4 is the authoritative
definition of the format of the 128-byte value,
i.e., if different, FC-GS-4 takes precedence over the
following description:
The 128-byte value is an array of 4-bit values, one for
each FC-4 Type value, positioned as follows: the 5 most
significant bits of a Type value identify where it appears
within the 128-byte value, specifically, within which word:
- Word 0 (of the 128-byte value) contains information
related to Types '00' through '07';
- Word 1 contains information related to Types
'08' through 0F';
- and so forth, up to Word 31, which contains
information related to Types 'F8' through 'FF'.
The least significant of the eight 4-bit values in each
Word represents an FC-4 Type with 000 as its 3 least
significant bits, and most significant 4-bit value in
each Word represents an FC-4 Type with 111 as its 3 least
significant bits. |