31:29

0h

RO/V/P

Error Bank (ERRBANK)

This field holds the Bank Address of the read transaction that had the ECC error.

28:27

0h

RO/V/P

Error Rank (ERRRANK)

This field holds the Rank ID of the read transaction that had the ECC error.
if ddr_​1dpc_​split_​ranks_​on_​subch feature is enabled then rank 1 is actually logged as rank 3.

26:24

0h

RO/V/P

Error Chunk (ERRCHUNK)

Holds the chunk number of the error stored in the register.

23:16

0h

RO/V/P

Error Syndrome (ERRSYND)

This field contains the error syndrome. A value of 0xFF indicates that the error is due to poisoning.

15:4

0h

RO

Reserved

3

0h

RW/1C/V/P

Multiple-bit Error Overflow (MERR_​OVERFLOW)

This bit is set when an uncorrectable multiple-bit error occurs on a memory read data transfer after one has already been logged in MERRSTS field. This bit is cleared when the corresponding bit in 0.0.0.PCI.ERRSTS is cleared.

2

0h

RW/1C/V/P

Multiple-bit Error Status (MERRSTS)

This bit is set when an uncorrectable multiple-bit error occurs on a memory read data transfer.
When this bit is set, the address that caused the error and the error syndrome are also logged and they are locked until this bit is cleared.
This bit is cleared when the corresponding bit in 0.0.0.PCI.ERRSTS is cleared.

1

0h

RW/1C/V/P

Correctable Error Overflow (CERR_​OVERFLOW)

This bit is set when a correctable single-bit error occurs on a memory read data transfer after one has already been logged in CERRSTS field. This bit is cleared when the corresponding bit in 0.0.0.PCI.ERRSTS is cleared.

0

0h

RW/1C/V/P

Correctable Error Status (CERRSTS)

This bit is set when a correctable single-bit error occurs on a memory read data transfer.
When this bit is set, the address that caused the error and the error syndrome are also logged and they are locked to further single bit errors, until this bit is cleared.
A multiple bit error that occurs after this bit is set will override the address/error syndrome information.
This bit is cleared when the corresponding bit in 0.0.0.PCI.ERRSTS is cleared.