743844-015.pdf - 第140页

PCIe Controller Feature S/S Refresh/E/E Refresh /HX/HX Refresh - Processor Line H/H Refresh/PX - Processor Line P/U/U Refresh - Processor Line PEG10 PEG11 PEG60 PEG10 PEG60 PEG62 PEG60 PEG62 PCIe Gen Gen5 Gen5 Gen4 Gen5 …

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7.0 PCIe* Interface
This chapter provides information on the PCIe* Interface.
Processor PCI Express* Interface
This section describes the PCI Express* interface capabilities of the processor. Refer to
PCI Express Base* Specification 5.0 for details on PCI Express*.
NOTE
PCIe Gen 5.0 is not supported on P/PX/U Processor Lines. The below applies for PCIe
Gen4.0 and lower
PCI Express* Support
The S/S Refresh/E/E Refresh processor PCI Express* has two interfaces:
• 16-lane (x16) port supporting PCIE to gen 5.0 or below that can also be
configured as multiple ports at narrower widths.
• 4-lane (x4) port supporting PCIE gen 4.0 or below.
The HX/HX Refresh processor line PCI Express* has two interfaces:
• 16-lane (x16) port supporting PCIE to gen 5.0 or below that can also be
configured as multiple ports at narrower widths.
• 4-lane (x4) port supporting PCIE gen 4.0 or below.
The H/H Refresh processor line PCI Express* has three interfaces:
• One 8-lane (x8) port supporting PCIE to gen 5.0 or below. This interface is
available on certain SKU
• Two 4-lane (x4) port supporting PCIE gen 4.0 or below.
The PX processor line PCI Express* has two interfaces:
• One 8-lane (x8) port supporting PCIE to gen 4.0 or below. This interface is
available on certain SKU
• One 4-lane (x4) port supporting PCIE gen 4.0 or below.
The P processor line PCI Express* has two interfaces:
• Two 4-lane (x4) port supporting PCIE gen 4.0 or below.
The U/U Refresh processor line PCI Express* has two interfaces:
• Two 4-lane (x4) port supporting PCIE gen 4.0 or below.
The processor supports the following:
7.1
7.1.1
R
PCIe* Interface—Intel
®
Core
™
, Xeon
™
6300 And Xeon
™
E 2400 Processors
13
th
Generation Intel
®
Core
™
, Intel
®
Core
™
14
th
Generation, Intel
®
Core
™
Processor (Series 1) and (Series 2), Intel
®
Xeon
™
E
2400 Processor and Intel
®
Xeon
™
6300 Processor
May 2025 Datasheet, Volume 1 of 2
Doc. No.: 743844, Rev.: 015 139
PCIe Controller
Feature
S/S Refresh/E/E Refresh /HX/HX
Refresh - Processor Line
H/H Refresh/PX - Processor
Line
P/U/U Refresh -
Processor Line
PEG10 PEG11 PEG60 PEG10 PEG60 PEG62 PEG60 PEG62
PCIe Gen Gen5 Gen5 Gen4 Gen5 (H)
Gen4
(PX)
Gen4 Gen4 Gen4 Gen4
dGPU support Yes Yes No Yes Yes Yes Yes [P],
Yes [U]
6
Yes [P],
Yes [U]
6
SSD support Yes Yes Yes Yes Yes Yes Yes Yes
Dynamic Width
Change Support
Yes Yes Yes Yes Yes Yes Yes Yes
Dynamic Speed
Change Support
No No No No No No No No
L1 PM Sub-States
(L1.0, L1.1, L1.2)
Yes Yes Yes Yes Yes Yes Yes Yes
L0s Link State
(RX/TX)
Yes Yes No Yes Yes Yes Yes Yes
S3/S4/S5 Sleep
States (Sx)
Yes Yes Yes Yes Yes Yes Yes Yes
Hierarchical
configuration
mechanism
Yes Yes Yes Yes Yes Yes Yes Yes
Traditional PCI
style traffic
(asynchronous
snooped, PCI
ordering)
Yes Yes Yes Yes Yes Yes Yes Yes
Extended
configuration
space
Yes Yes Yes Yes Yes Yes Yes Yes
Enhanced Access
Mechanism
4
Yes Yes Yes Yes Yes Yes Yes Yes
64-bit
downstream
address format
2
Yes Yes Yes Yes Yes Yes Yes Yes
64-bit upstream
address format
3
Yes Yes Yes Yes Yes Yes Yes Yes
Common Clock
Mode
Yes Yes Yes Yes Yes Yes Yes Yes
Separate
Reference Clock
with Independent
SSC (SRIS)
4
No No No No No No No No
Separate
Reference Clock
with No SSC
(SRNS)
No No No No No No No No
Precision Time
Measurement
(PTM)
Yes Yes Yes
1
Yes Yes
1
Yes
1
Yes
1
Yes
1
continued...
R
Intel
®
Core
™
, Xeon
™
6300 And Xeon
™
E 2400 Processors—PCIe* Interface
13
th
Generation Intel
®
Core
™
, Intel
®
Core
™
14
th
Generation, Intel
®
Core
™
Processor (Series 1) and (Series 2), Intel
®
Xeon
™
E
2400 Processor and Intel
®
Xeon
™
6300 Processor
Datasheet, Volume 1 of 2 May 2025
140 Doc. No.: 743844, Rev.: 015
PCIe Controller
Feature
S/S Refresh/E/E Refresh /HX/HX
Refresh - Processor Line
H/H Refresh/PX - Processor
Line
P/U/U Refresh -
Processor Line
PEG10 PEG11 PEG60 PEG10 PEG60 PEG62 PEG60 PEG62
Advanced Error
Reporting (AER)
Yes Yes Yes Yes Yes Yes Yes Yes
End-to-End Lane
Reversal
Yes Yes Yes Yes Yes Yes Yes Yes
Latency Tolerance
Reporting (LTR)
Yes Yes Yes Yes Yes Yes Yes Yes
PCIe TX Half
Swing
No No No No No No No No
PCIe TX Full
Swing
Yes Yes Yes Yes Yes Yes Yes Yes
Run Time D3
(RTD3)
Yes Yes Yes Yes Yes Yes Yes Yes
Modern Standby Yes Yes Yes Yes Yes Yes Yes Yes
MCTP VDM
tunneling
Yes Yes Yes Yes Yes Yes Yes Yes
Message Signaled
Interrupt (MSI)
messages
5
Yes Yes Yes Yes Yes Yes Yes Yes
Access Control
Services (ACS)
Yes Yes Yes Yes Yes Yes Yes Yes
Alternative
Routing-ID
Interpretation
(ARI)
Yes Yes Yes Yes Yes Yes Yes Yes
Port 80h Decode Yes Yes Yes Yes Yes Yes Yes Yes
Receive Lane
Polarity Inversion
Yes Yes Yes Yes Yes Yes Yes Yes
PCIe Controller
Root Port Hot-
Plug
No No No No No No No No
Downstream Port
Containment
(DPC)
Yes Yes Yes Yes Yes Yes Yes Yes
Enhanced
Downstream Port
Containment
(eDPC)
No No No No No No No No
Virtual Channel
(VC)
VC0 VC0 VC0/VC1 VC0 VC0/VC1 VC0/VC1 VC0/VC1 VC0/VC1
NVMe Cycle
Router
No No No No No No No No
Volume
Management
Device (Intel
®
VMD) Support
Yes Yes Yes Yes Yes Yes Yes Yes
Discrete Device
Support (M.2
1px2, 1px4)
Yes Yes Yes Yes Yes Yes Yes Yes
continued...
R
PCIe* Interface—Intel
®
Core
™
, Xeon
™
6300 And Xeon
™
E 2400 Processors
13
th
Generation Intel
®
Core
™
, Intel
®
Core
™
14
th
Generation, Intel
®
Core
™
Processor (Series 1) and (Series 2), Intel
®
Xeon
™
E
2400 Processor and Intel
®
Xeon
™
6300 Processor
May 2025 Datasheet, Volume 1 of 2
Doc. No.: 743844, Rev.: 015 141