Class Code - 4.4 English - PG156

UltraScale Devices Gen3 Integrated Block for PCI Express LogiCORE IP Product Guide (PG156)

Document ID
PG156
Release Date
2024-12-06
Version
4.4 English

The Class Code identifies the general function of a device, and is divided into three byte-size fields:

Base Class
Broadly identifies the type of function performed by the device.
Sub-Class
More specifically identifies the device function.
Interface
Defines a specific register-level programming interface, if any, allowing device-independent software to interface with the device.

Class code encoding can be found at the PCI SIG website.