Configuration Rom - AVT Pike Technical Manual

Configuration of the camera

Configuration ROM

Offset 0-7
400h
404h
Bus info block
408h
40Ch
410h
414h
418h
Root directory 41Ch
420h
424h
The information in the Configuration ROM is needed to identify the node, its
capabilities and which drivers are required.
The base address for the configuration ROM for all registers is
FFFF F0000000h.
Note If you want to use the DirectControl program to read or write
to a register, enter the following value in the Address field:
F0F00000h + Offset
The ConfigRom is divided into
• Bus info block: providing critical information about the bus-related
capabilities
• Root directory: specifying the rest of the content and organization,
such as:
– Node unique ID leaf
– Unit directory and
– Unit dependant info
The base address of the camera control register is calculated as follows based
on the camera-specific base address:
8-15 16-23 24-31
04 29 0C
31 33 39
20 00 B2
00 0A 47
Serial number
00 04 B7
03 00 0A
0C 00 83
8D 00 00
D1 00 00
Table 105: Configuration ROM
The entry with key 8D in the root directory (420h in this case) provides the
offset for the Node unique ID leaf.
To compute the effective start address of the node unique ID leaf:
C0
34 .... ASCII for 1394
03 .... Bus capabilities
01 .... Node_Vendor_Id,
.... Chip_id_lo
85 According to IEEE1212, the root directory
may have another length. The keys (e.g.
47
8D) point to the offset factors rather than
C0
the offset (e.g. 420h) itself.
02
04
PIKE Technical Manual V4.1.0
Chip_id_hi
236