What is the description of the MsiIntfc_o[81:0] and MsixIntfc_o[15:0] signals?

Description

If you select Enable multiple MSI/MSI-X support under the Avalon Memory-Mapped (Avalon-MM) System Settings banner in Hard IP for PCI Express® MegaWizard™ window, it exports MsiIntfc_o[81:0] and MsixIntfc_o[15:0] signals.

The description of these signals are below:

MsiIntfc_o[63:0]  --- MSI address
MsiIntfc_o[79:64]  --- MSI data
MsiIntfc_o[80] --- MSI enable
MsiIntfc_o[81] --- Master enable

MsixIntfc_o[15:0] --- MSI-X message control