Table 18. S2-S3-S4 Definition for devices/FRUs not defined in the PCI
specification (continued)
Base Class S2 Sub-Class S3 -
S4
Description
5 A0 L2 Cache Controller including integrated SRAM
A1 L2 Cache SRAM
A8 NVRAM
A9 CMOS
AA Quartz/EEPROM
B0 - Bx Memory cards
Cyy Memory Dimms (Where C is S2, S3, or S4 and yy
identifies the memory size and type).
7A0I
2
C bus
8 A0 Power Management Functions
9 A0 - Ax Keyboards
B0 - Bx Mouse(s)
C0 - Cx Dials
D0 Tablet
D1 - Dx TBD input devices
B A0 Service processor
Appendix H. Interpreting Firmware Error Codes
647
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