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PCI Express System Architecture by MindShare, Inc, Ravi Budruk, Don Anderson, Tom Shanley

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Appendix D. Class Codes

This appendix lists the class codes, sub-class codes, and programming interface byte definitions currently provided in the 2.3 PCI specification.

Figure D-1. Class Code Register

Table D-1. Defined Class Codes
ClassDescription
00hFunction built before class codes were defined (in other words: before rev 2.0 of the PCI spec).
01hMass storage controller.
02hNetwork controller.
03hDisplay controller.
04hMultimedia device.
05hMemory controller.
06hBridge device.
07hSimple communications controllers.
08hBase system peripherals.
09hInput devices.
0AhDocking stations.
0BhProcessors.
0ChSerial bus controllers.
0DhWireless controllers.
0EhIntelligent ...

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