Dmiesd-Dmi Element Self Description Register - Intel 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - DATASHEET VOLUME 2 01-2011 Datasheet

Processor Configuration Registers
2.12.14 DMIESD—DMI Element Self Description Register
This register provides information about the root complex element containing this Link
Declaration Capability.
B/D/F/Type:
Address Offset:
Reset Value:
Access:
Size:
BIOS Optimal Default
Bit
31:24
23:16
15:8
7:4
3:0
Datasheet, Volume 2
0/0/0/DMIBAR
44–47h
01000202h
RO, RW-O
32 bits
0h
Reset RST/
Attr
Value PWR
RO 01h Uncore
RW-O 00h Uncore
RO 02h Uncore
RO 0h
RO 2h Uncore
Description
Port Number (PORTNUM)
This field specifies the port number associated with this element
with respect to the component that contains this element. This port
number value is utilized by the egress port of the component to
provide arbitration to this Root Complex Element.
Component ID (CID)
This field identifies the physical component that contains this Root
Complex Element.
BIOS Requirement: Must be initialized according to guidelines in
the PCI Express* Isochronous/Virtual Channel Support Hardware
Programming Specification (HPS).
Number of Link Entries (NLE)
This field indicates the number of link entries following the Element
Self Description. This field reports 2 (one for MCH egress port to
main memory and one to egress port belonging to ICH on other
side of internal link).
Reserved
Element Type (ETYP)
This field indicates the type of the Root Complex Element.
A value of 2h represents an Internal Root Complex Link (DMI).
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