Defines whether this is write-back (value=3) or write-through (value=4) Cache, or whether this information \"Varies with ...

Defines whether this is write-back (value=3) or write-through (value=4) Cache, or whether this information \"Varies with Address\" (5) or is defined individually for each I/O (6). Also, \"Other\" (1) and \"Unknown\" (2) can be specified.