Root Port Error FIFO Read Register (Offset 0x154) - 2.9 English

AXI Memory Mapped to PCI Express (PCIe) Gen2 v2.9 LogiCORE IP Product Guide (PG055)

Document ID
PG055
Release Date
2023-11-24
Version
2.9 English

Reads from this location return queued error (Correctable/Non-fatal/Fatal) messages. Data from each read follows the format shown in Table: Root Port Error FIFO Read Register . For EP configurations, read returns zero.

Reads are non-destructive. Removing the message from the FIFO requires a write. The write value is ignored.

Table 2-17: Root Port Error FIFO Read Register

Bits

Name

Core Access

Reset
Value

Description

15:0

Requester ID

RWC

0

Requester ID belonging to the requester of the error message.

17:16

Error Type

RWC

0

Indicates the type of the error.

00b: Correctable

01b: Non-Fatal

10b: Fatal

11b: Reserved

18

Error Valid

RWC

0

Indicates whether read succeeded.

1b: Success

0b: No message to read

31:19

Reserved

RO

0

Reserved