IBM B50 User Manual
Page 186
Current PCI 2.1 Class Code Definition
Field
Description
R2 - R3
Device/FRU unique failure reason codes
PCI Base
Class
(lower
nibble) S2
PCI
Sub-Class
S3 -S4
Description
0
Devices that were built before the class code field was defined.
00
All currently implemented devices except VGA-compatible
devices.
01
VA-compatible devices
1
Mass storage controller
00
SCSI bus controller
01
IDE controller
02
Floppy disk controller
03
Intelligent Peripheral Interface (IPI) bus controller
04
Redundant Array of Independent Disk (RAID) controller
80
Other mass storage controller
2
Network controller
00
Ethernet controller
01
Token Ring controller
02
FDDI controller
03
ATM controller
80
Other network controller
3
Display controller
00
VGA-Compatible controller
01
Extended Graphics Array (XGA) controller
80
Other display controller
4
Multimedia device
00
Video device
01
Audio device
80
Other multimedia device
5
Memory controller
00
RAM
01
Flash
80
Other memory controller
A-2
7046 Model B50 Service Guide