Sony FCB-ER8550 Technical Manual page 66

Chunk list and detailed specifications (Ver.1.0)
Description of type
uint
Binary
Chunk type
DATV
PROV
Unsigned integer (Does not depend on the data length.)
Binary data string
Description
Version of firmware data structure
■ Limiting conditions
This necessarily exists as a chunk at the top.
■ Data arrangement
Arrangement
DATV Chunk{
length
type
firmDataVersion
reserved
}
■ Meaning
firmDataVersion
This indicates the protocol version of user firmware update.
Fixed to 0x0100.
reserved
0x0000
Communication protocol version of firmware update
■ Limiting conditions
This necessarily exists as the second chunk.
■ Data arrangement
Arrangement
PROV Chunk{
length
type
firmProtocolVersion
reserved = 0
}
■ Meaning
firmProtocolVersion
This indicates the protocol version of user firmware update.
Fixed to 0x0100.
Size [Byte] Type
4 uint
4 uint
2 uint
2 uint
Size [Byte] Type
4
4
2
2

Value
0x00000004
'DATV'
Value
uint 0x00000004
uint 'PROV'
uint
uint 0x0000