Sony XCDSX90 User Manual (XCDV60_V60CR_SX90_SX90CR_U100_U100CR_Technical_Manua - Page 17

Control ConfigurationROM The ConfigurationROM is normally used for the OS to identify the device. The serial number and firmware version of the camera are stored in ConfigurationROM to be used when required. Note that the setting method for the serial number and firmware version information is of Sony's unique specification and is not compatible with cameras of other manufacturers. The following explanation uses XCD-V60CR as an example. Bus Info Block Root Directory Offset 400h 404h 408h 40ch 410h 414h 418h 41ch 420h 0-7 8-15 04 22 31 33 20 FF 08 00 00 37 0003 03 08 0C 00 D1 00 16-23 24-31 ROM CRC 39 34 A2 13 46 10 1A 96 CRC 00 46 83 C0 00 01 NodeVendorID/ChipID-Hi Chip ID-Lo ModuleVendorID UnitDirectoryOffset With the exception of bits 8 to 15 of the 400h offset address field, the length of the entire ConfigROM is made up of 22h Quadlets. Therefore, the ConfigROM from 400h to 48Bh is 140 bytes. The UnitDirectory offset address is required to be 424h + 000004h × 1 = 424h Unit Directory Offset 424h 428h 42Ch 430h 0-7 8-15 0003 12 00 13 00 D4 00 16-23 24-31 CRC A0 2D 01 02 00 01 For offset address 424h, the length of the UnitDirectory is 3 Quadlets. UnitSpecID (00A02Dh) conforms to 1394TA standards. UnitSoftwareVersion (000102h) conforms to IIDC Standards, Version 1.3. The offset address of UnitDependentInfo is required to be 430h + 000001h × 1 = 434h Unit Dependent Info Offset 434h 438h 43ch 440h 444h 448h 44Ch 450h 454h 458h 45Ch 460h 0-7 8-15 000B 40 3C 81 00 82 00 38 00 39 00 3A 00 3B 00 3C 00 3D 01 3E 00 3F 01 16-23 24-31 CRC 00 00 00 0A 00 0D 00 10 00 00 00 00 00 00 01 00 00 00 00 30 86 A1 UnitSpecID UnitSoftwareVersion UnitDependentDirectory Offset CommandRegsBase VendorNameLeaf ModelNameLeaf Unit_sub_sw_version Reserved Reserved Reserved Vendor_unique_info_0 Vendor_unique_info_1 Vendor_unique_info_2 Vendor_unique_info_3 17