Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
221
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
14.2.44 DEVSTS
PCI Express Device Status.
Type:
CFG
PortID:
N/A
Bus:
0
Device:
0Function:0 (DMI2 Mode)
Offset:
0xf2
Bus:
0
Device:
0Function:0 (PCIe* Mode)
Bus:
0
Device:
2Function:0-3
Bus:
0
Device:
3Function:0-3
Offset:
0x9a
Bit
Attr
Default
Description
15:6
RV
-
Reserved. 
5:5
RO
0x0
transactions_pending:
Does not apply to Root/DMI ports, that is, bit hardwired to 0 for these 
devices.
4:4
RO
0x0
aux_power_detected:
Does not apply to the IIO.
3:3
RW1C
0x0
unsupported_request_detected:
This bit indicates that the root port or DMI port detected an Unsupported 
Request. Errors are logged in this register regardless of whether error 
reporting is enabled or not in the Device Control Register.
1: Unsupported Request detected at the device/port. These unsupported 
requests are NP requests inbound that the root port or DMI port received and 
it detected them as unsupported requests (for example, address decoding 
failures that the root port detected on a packet, receiving inbound lock reads, 
BME bit is clear and so forth).
0: No unsupported request detected by the root or DMI port
Note: This bit is not set on peer-to-peer completions with UR status that are 
forwarded by the root port or DMI port to the PCIe/DMI link.
2:2
RW1C
0x0
fatal_error_detected:
This bit indicates that a fatal (uncorrectable) error is detected by the root or 
DMI port. Errors are logged in this register regardless of whether error 
reporting is enabled or not in the Device Control register.
1: Fatal errors detected
0: No fatal errors detected
1:1
RW1C
0x0
non_fatal_error_detected:
This bit gets set if a nonfatal uncorrectable error is detected by the root or 
DMI port. Errors are logged in this register regardless of whether error 
reporting is enabled or not in the Device Control register.
1: Nonfatal errors detected
0: No nonfatal errors detected
0:0
RW1C
0x0
correctable_error_detected:
This bit gets set if a correctable error is detected by the root or DMI port. 
Errors are logged in this register regardless of whether error reporting is 
enabled or not in the PCI Express Device Control register.
1: Correctable errors detected
0: No correctable errors detected
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