L-FW323-06-DB AGERE [Agere Systems], L-FW323-06-DB Datasheet - Page 27

• Manufacturer Part Number: L-FW323-06-DB
• Description: PCI PHY/Link Open Host Controller Interface
• Manufacturer: AGERE [Agere Systems]

Data Sheet, Rev. 1
December 2005
Internal Registers
Class Code and Revision ID Registers
The Class Code register and Revision ID register categorize the FW323 as a serial bus controller (0Ch),
controlling an IEEE 1394 bus (00h), with an OHCI programming model (10h). Furthermore, the chip revision is
indicated in the lower byte.
Offset:
Default:
Type:
Reference:
Table 6. Class Code and Revision ID Register Description
* x is a minor revision number of the FW323 06 and may be any value from 0 hex to F hex.
Agere Systems Inc.
31:24
23:16
15:8
Bit
7:0
BASECLASS
Field Name
SUBCLASS
CHIPREV
08h
0C00 106xh*
PCI Local Bus Specification, Rev. 2.2, Section 6.2.1 and 1394 Open Host Controller Interface
Specification, Rev. 1.1, Section A.3.3 and A.3.4.
Read only
PGMIF
(continued)
Type
R
R
R
R
Base Class. This field returns 0Ch when read, which classifies the func-
tion as a serial bus controller.
Subclass. This field returns 00h when read, which specifically classifies
the function as an IEEE 1394 serial bus controller.
Programming Interface. This field returns 10h when read, indicating
that the programming model is compliant with the 1394 Open Host
Controller Interface Specification.
Silicon Revision. This field returns 6xh* when read, indicating the
silicon revision of the FW323.
PCI PHY/Link Open Host Controller Interface
Description
FW323 06 1394a
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