HP A2Y15AV User Manual
Datasheet, Volume 2
209
Processor Configuration Registers
2.11.8
ESD—Element Self Description Register
This register provides information about the root complex element containing this Link
Declaration Capability.
Declaration Capability.
B/D/F/Type:
0/6/0/MMR
Address Offset:
144–147h
Reset Value:
05000100h
Access:
RO, RW-O
Size:
32 bits
BIOS Optimal Default
0h
Bit
Access
Reset
Value
RST/
PWR
Description
31:24
RO
05h
Uncore
Port Number (PN)
Specifies the port number associated with this element with
Specifies the port number associated with this element with
respect to the component that contains this element.
Note the value is instantiation dependent:
BDF 0.1.0 --> 02
BDF 0.1.1 --> 03
BDF 0.1.2 --> 04
BDF 0.6.0 --> 05
Note the value is instantiation dependent:
BDF 0.1.0 --> 02
BDF 0.1.1 --> 03
BDF 0.1.2 --> 04
BDF 0.6.0 --> 05
23:16
RW-O
00h
Uncore
Component ID (CID)
Identifies the physical component that contains this Root
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
01h
Uncore
Number of Link Entries (NLE)
Indicates the number of link entries following the Element Self
Indicates the number of link entries following the Element Self
Description. This field reports 1 (to Egress port only).
7:4
RO
0h
Reserved (RSVD)
3:0
RO
0h
Uncore
Element Type (ET)
Indicates Configuration Space Element.
Indicates Configuration Space Element.