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ConfigROM
Offset
Bus
400h
Info
404h
Block
408h
40ch
410h
Root
414h
Directory
418h
41ch
420h
424h
With the exception of bits 8 to 15 of the 400h offset
address field, the length of the entire ConfigROM is
made up of 1Fh Quadlets. So the ConfigROM from
400h to 47Fh is 128 bytes.
Offset address 420h and key code 8Dh indicate a
NodeUniqueID Leaf offset, but in 1394a-2000, this
field has been eliminated. To ensure compatibility with
Offset
Unit
434h
Directory
438h
43Ch
440h
For offset address 434h, the length of the
UnitDirectory is 3 Quadlets. UnitSpecID (00A02Dh)
conforms to 1394TA standards. UnitSoftwareVersion
(000102h) conforms to IIDC Standards, Version 1.30.
XCD-SX910CR/X710CR
XCD-SX910/X710
0-7
8-15
16-23
04
1F
31
33
20
FF
08
00
00
0B
0004
03
08
0C
00
8D
00
D1
00
0-7
8-15
16-23
0003
12
00
13
00
D4
00
24-31
ROM CRC
39
34
60
00
46
02
NodeVendorID/ChipID-Hi
00
37
ChipID-Lo
CRC
00
46
ModuleVendorID
83
C0
00
02
IndirectOffset
00
04
UnitDirectoryOffset
previous models, this field has been retained in this
model, but in writing drivers and software
applications, be sure to ignore this field. For a
NodeUniqueID, use NodeVendorID/ChipID-Hi +
ChipID-Lo.
The UnitDirectory offset address is required to be
424h +000004h * 4 = 434h
24-31
CRC
A0
2D
UnitSpecID
01
02
UnitSoftwareVersion
00
01
UnitDependentDirectory Offset
The offset address of UnitDependentInfo is required to
be
440h + 000001h * 4 = 444h
Control
16
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