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

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Advanced Error Reporting Mechanisms

Advanced Error Reporting requires implementation of the Advanced Error Reporting registers illustrated in Figure 10-14 on page 382. (Note that the lighter fields at the bottom of the Capability register diagram are used only for root ports, discussed later.) These registers provide several additional error reporting features:

  • finer granularity in defining the actual type of error that has occurred within each classification.

  • ability to specify the severity of each uncorrectable error type to determine whether it should be reported as a fatal or non-fatal error.

  • support for logging errors.

  • enable/disable Root Complex to report errors to the system.

  • identify source of the error.

  • ability to mask reporting individual ...

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