| Field Name | Bits | Type | Reset Value | Description |
|---|
| Reserved | 31:24 | roRead-only | 0x0 | |
| message_tag | 23:16 | roRead-only | 0x0 | Byte 6 (Tag) of received Message TLP. Valid only for intr_type == Received Message. |
| message_code | 15:8 | roRead-only | 0x0 | Byte 7 (Message Code) of received Message TLP. Valid only for intr_type == Received Message. |
| Reserved | 7:4 | roRead-only | 0x0 | |
| message_payload_present | 3 | roRead-only | 0x0 | Message Data Payload Presence. Valid only for intr_type == Received Message. |
| message_routing | 2:0 | roRead-only | 0x0 | Byte0[2:0] (Message Routing) of received Message TLP. Valid only for intr_type == Received Message. |