Intel
®
Core
TM
i7-660UE, i7-620LE/UE, i7-610E, i5-520E, i3-330E and Intel
®
Celeron
®
Processor P4505, U3405 Series
August 2010
Datasheet Addendum
Document Number: 323178-003
113
Processor Configuration Registers
6.2.35
DCAP - Device Capabilities
B/D/F/Type:
0/6/0/PCI
Address Offset:
A4-A7h
Default Value:
00008000h
Access:
RO
Size:
32 bits
Indicates PCI Express device capabilities.
3:0
RO
2h
Core
PCI Express Capability Version (PCIECV)
hard wired to 2h to indicate compliance to the PCI Express
Capabilities Register Expansion ECN.
Table 57. PEG_CAP - PCI Express-G Capabilities Register
Bit
Access
Default
Value
RST/
PWR
Description
Table 58. DCAP - Device Capabilities Register
Bit
Access
Default
Value
RST/
PWR
Description
31:16
RO
0000h
Core
Reserved
Not Applicable or Implemented. Hard wired to 0.
15
RO
1b
Core
Role-Based Error Reporting (RBER)
Indicates that this device implements the functionality defined
in the Error Reporting ECN as required by the PCI Express Base
spec.
14:6
RO
000h
Core
Reserved
Not Applicable or Implemented. Hard wired to 0.
5
RO
0b
Core
Extended Tag Field Supported (ETFS)
hard wired to indicate support for 5-bit Tags as a Requestor.
4:3
RO
00b
Core
Phantom Functions Supported (PFS)
Not Applicable or Implemented. Hard wired to 0.
2:0
RO
000b
Core
Max Payload Size (MPS)
hard wired to indicate 128B max supported payload for
Transaction Layer Packets (TLP).