IBM RS/6000 7043 43P Series Service Manual page 265

Table A-4 (Page 2 of 2). S2-S3-S4 Definition for devices/FRUs not defined in the PCI specification
Base Class S2 Sub-Class S3 -
S4
1 A0
B0
C0
D0
E0
E1
ED
EE
EF
F0
F1
F2
F3
F4 - FF
5 A0
A1
A8
A9
AA
B0 - Bx
Cyy
7 A0
8 A0
9 A0 - Ax
B0 - Bx
C0 - Cx
D0
D1 - Dx
B A0
Description
SCSI Drivers (generic)
IDE Drives
RAID Drives
SSA Drives
Tapes SCSI
Tapes IDE
SCSI changer
Other SCSI device
Diskette drive
CDROM SCSI
CDROM IDE
Read/Write optical SCSI
Read/Write optical IDE
TBD media devices
L2 Cache Controller including integrated SRAM
L2 Cache SRAM
NVRAM
CMOS
Quartz/EEPROM
Memory cards
Memory Dimms (Where C is S2, S3, or S4 and yy
identifies the memory size and type).
I 2 C bus
Power Management Functions
Keyboards
Mouse(s)
Dials
Tablet
TBD input devices
Service processor
Appendix A. Interpreting Firmware Error Codes
A-5