AMD Answer 75748
The iPort mission interrupt can falsely trigger from the PMC and LPD interconnects. The CPM and FPD interconnects are not affected.
The mission interrupt tracks possible packet parity errors, packet loss, instruction stall, packet arbitration stall, packet routing error, or master timeout issues. The PMC and LPD mission interrupts should not be enabled.
This issue will not be fixed for the devices listed in the Errata Summary table.