Справочник Пользователя для HP A2Y15AV
Datasheet, Volume 2
229
Processor Configuration Registers
2.12.18 DMIESD—DMI Element Self Description Register
This register provides information about the root complex element containing this Link
Declaration Capability.
Declaration Capability.
B/D/F/Type:
0/0/0/DMIBAR
Address Offset:
44–47h
Reset Value:
01000202h
Access:
RO, RW-O
Size:
32 bits
BIOS Optimal Default
0h
Bit
Access
Reset
Value
RST/
PWR
Description
31:24
RO
01h
Uncore
Port Number (PORTNUM)
This field specifies the port number associated with this element
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.
23:16
RW-O
00h
Uncore
Component ID (CID)
This field identifies the physical component that contains this
This field identifies the physical component that contains this
Root Complex Element.
BIOS Requirement: This field must be initialized according to
BIOS Requirement: This field must be initialized according to
guidelines in the PCI Express* Isochronous/Virtual Channel
Support Hardware Programming Specification (HPS).
15:8
RO
02h
Uncore
Number of Link Entries (NLE)
This field indicates the number of link entries following the
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).
7:4
RO
0h
Reserved (RSVD)
3:0
RO
2h
Uncore
Element Type (ETYP)
This field indicates the type of the Root Complex Element.
a value of 2h represents an Internal Root Complex Link (DMI).
This field indicates the type of the Root Complex Element.
a value of 2h represents an Internal Root Complex Link (DMI).