Sony SX90 Technical Manual page 19

For offset address 434h, the length of the UnitDependentInfo is 0Bh Quadlets.
CommandRegsBase is the base address of the camera control register.
F0000000h + 3c0000h × 4 = F0F00000h
The offset address of VendorNameLeaf is required to be
43Ch + 00000Ah × 4 = 464h
The offset address of ModelNameLeaf is required to be
440h + 00000Dh × 4 = 474h
Unit_sub_sw_version conforms to IIDC Standards, Version 1.31.
Vendor_unique_info 0 to Vendor_unique_info 3 are terms of information that the vendor of the camera can define.
The meanings in this camera are as follows:
Vendor_unique_info_0 is the firmware version.
Vendor_unique_info_1 is the hardware version.
Vendor_unique_info_2 is the link version.
Vendor_unique_info_3 is the serial number of the camera.
VendorNameLeaf
Offset
Vender Name Leaf 464h
468h
46h
470ch
For offset address 464h, the length of the VendorNameLeaf is 3 Quadlets.
The subsequent 8 bytes are fixed at 00.
After that, the four characters for "SONY" are entered.
ModelNameLeaf
Offset
Model Name Leaf 474h
478h
47ch
480h
484h
488h
For offset address 474h, the length of the ModelNameLeaf is 5 Quadlets.
The subsequent 8 bytes are fixed at 00.
After that, the model name is entered.
0-7 8-15 16-23
0003
00 00 00
00 00 00
53 4F 4E
0-7 8-15 16-23
0005
00 00 00
00 00 00
58 43 44
56 36 30
52 00 00
24-31
CRC
00
00
" "
59 SONY
24-31
CRC
00
00
" "
2D XCD-
" "
43 V60C
···
" "
00 R
19