Datasheet

Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family 237
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
14.2.54 DEVCAP2
PCI Express Device Capabilities 2 Register.
Type: CFG PortID: N/A
Bus: 0 Device: 0Function:0
Bus: 0 Device: 2Function:0-3
Bus: 0 Device: 3Function:0-3
Offset: 0xb4
Bit Attr Default Description
31:14 RV - Reserved.
13:12 RW_O 0x1
tph_completer_supported:
Indicates the support for TLP Processing Hints. Processor does not support
the extended TPH header.
00: TPH and Extended TPH Completer not supported.
01: TPH Completer supported; Extended TPH Completer not supported.
10: Reserved.
11: Both TPH and Extended TPH Completer supported.
11:10 RV - Reserved.
9:9 RO 0x1
atomic128bcascompsup:
Unsupported.
8:8 RO 0x1
atomic64bcompsup:
Unsupported.
7:7 RO 0x1
atomic32bcompsup:
Unsupported.
6:6 RO 0x0
atomicroutsup:
Unsupported.
5:5 RW_O 0x1
ari_en:
Alternative RID InterpretationCapable
The value 0x1 indicates Root Port supports this capability.
4:4 RO 0x1
cmpltodissup:
Completion Timeout Disable Supported
IIO supports disabling completion timeout