FIT Header (Type 0) Rules

1. The very first entry in FIT must be a Type 0 entry, FIT Header Entry. There can be exactly one Type 0 entry in FIT.
2. The address field must contain the ASCII value of “_​FIT_​<sp> <sp> <sp>”, where
3. <sp> is space character (20h).
4. If C_​V bit in this entry is set, FIT table must checksum to 0.
5. Size field represents the size of the FIT table in multiple of 16 bytes.
6. Version field should be set to 0x0100.