IBM RS/6000 44P 270 Service Manual page 337

Table 9. S2-S3-S4 Definition for devices/FRUs not defined in the PCI
specification (continued)
Sub-Class S3 -
Base Class S2 S4
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
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).
2
I C bus
Power Management Functions
Keyboards
Mouse(s)
Dials
Tablet
TBD input devices
Service processor
Appendix F. Interpreting Firmware Error Codes
319