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ConfigROM
Offset
Bus
400h
Info
404h
Block
408h
40ch
410h
Root
414h
Directory
418h
41ch
420h
With the exception of bits 8 to 15 of the 400h offset
address field, the length of the entire ConfigROM is
made up of 21h Quadlets. So the ConfigROM from
400h to 487h is 136 bytes.
Offset
Unit
424h
Directory
428h
42Ch
430h
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 1.3X.
XCD-V50CR
XCD-V50
0-7
8-15
16-23
04
21
31
33
20
FF
08
00
00
10
0003
03
08
0C
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
01
ChipID-Lo
CRC
00
46
ModuleVendorID
83
C0
00
01
UnitDirectoryOffset
The UnitDirectory offset address is required to be
420h +000004h * 1 = 424h
24-31
CRC
A0
2D
UnitSpecID
01
02
UnitSoftwareVersion
00
01
UnitDependentDirectory Offset
The offset address of UnitDependentInfo is required to
be
430h + 000001h * 4 = 434h
Control
10
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