S5935TFC AMCC [Applied Micro Circuits Corporation], S5935TFC Datasheet - Page 41

• Manufacturer Part Number: S5935TFC
• Description: PCI Product
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

S5935 – PCI Product
CLASS CODE REGISTER (CLCD)
Figure 13.
Table 10. Defined Base Class Codes
AMCC Confidential and Proprietary
Register Name
Address Offset
Power-up value
Boot-load
Attribute
Size
Base-Class
7
0D-FEh
0Ch
0Ah
0Bh
FFh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
Base Class
@0Bh
Class Code
09h-0Bh
FF0000h
External nvRAM offset 049h-4Bh
Read Only
24 bits
Early, pre-2.0 PCI specification devices
Mass storage controller
Network controller
Display controller
Multimedia device
Memory controller
Bridge device
Simple communication controller
Base system peripherals
Input devices
Docking stations
Processors
Serial bus controllers
Reserved
Device does not fit defined class codes (default)
0
7
@0Ah
Sub-Class
This 24-bit, read-only register is divided into three one-
byte fields: the base class resides at location 0Bh, the
sub-class at 0Ah, and the programming interface at
09h. The default setting for the base class is all ones
(FFh), which indicates that the device does not fit into
the thirteen base classes defined in the PCI Local Bus
Specification. It is possible, however, through use of
the external non-volatile memory, to implement one of
the defined class codes described in Table 7 below.
For devices that fall within the seven defined class
codes, sub-classes are also assigned. Tables 8
through 20 describe each of the sub-class codes for
base codes 00h through 0Ch, respectively.
0
Description
7
Prog I/F
@09h
Revision 1.02 – June 27, 2006
Data Book
0
(Offset)
(Bit)
DS1527
41