Intel CONTROLLERS 413808 - Manual (Page 97)

Intel ® 413808 and 413812 I/O Controllers in TPER Mode
October 2007 Developer’s Manual
Order Number: 317805-001US 97
Address Translation Unit (PCI-X)—Intel
®
413808 and 413812
2.7.3 Uncorrectable Data Errors on the PCI Interface
Two kinds of uncorrectable data errors can occur on the PCI interface: errors as an
initiator and errors as a target.
Errors encountered as an initiator:
— Outbound Read Request
— Outbound Write Request
— Inbound Read Completions
— Inbound Configuration Write Completion Messages
As an initiator, the ATU provides an error response for uncorrectable data errors on
outbound reads, and uncorrectable data errors occurring at the target for outbound
writes. However, there is no error response for uncorrectable data errors on inbound
configuration write completion messages and inbound read completions.
Errors encountered as a target:
— Inbound Read Request (Immediate Data Transfer)
— Inbound Write Request
— Outbound Read Completions
— Outbound Split (I/O or Configuration) Uncorrectable Write Data Error Messages
— Inbound Configuration Write
— Split Completion Messages
As a target, the ATU provides an error response for uncorrectable data errors on
inbound writes, outbound read completions, outbound uncorrectable split write data
error messages, inbound configuration writes, and split completion messages.
However, there is no error response for uncorrectable data errors on inbound reads.