Intel® 800 Series Chipset Family Platform Controller Hub (PCH)

Datasheet, Volume 1 of 2

ID Date Version Classification
833778 02/06/2025 Public
Document Table of Contents

Functional Description

Features Supported

PCIe Controller Feature

PCH-S Controllers

[6:1]

L1 Sub-States (L1.0, L1.1, L1.2)

Yes

L0s Link State (RX/TX)

No

S3/S4/S5 Sleep States (Sx)

Yes

Common Clock Mode

Yes

Separate Reference Clock with Independent SSC (SRIS)

No

Separate Reference Clock with No SSC (SRNS)

No

Precision Time Management (PTM)

Yes

Advanced Error Reporting (AER)

Yes

End-to-End Lane Reversal

Yes

Latency Tolerance Reporting (LTR)

Yes

PCIe TX Half Swing

No

PCIe TX Full Swing

Yes

Run Time D3 (RTD3)

Yes

Access Control Services (ACS)

Yes

Alternative Routing-ID Interpretation (ARI)

Yes

Port 80h Decode

Yes

Lane Polarity Inversion

Yes

PCIe Controller Root Port Hot-Plug

Yes

Downstream Port Containment (DPC)

No

Enhanced Downstream Port Containment (eDPC)

No

Virtual Channel (VC)

0

NVMe Cycle Router

No

Volume Management Device (Intel® VMD)

Yes

RAID[0, 1, 5, 10] Mode Support1,2,3

See PCH SKU details in Introduction section

PCIe Controller (PC) Root Port (RP)

Peer-2-Peer (P2P) Mem Write Transactions

RPs between and within PCH PC1/2/3/4/5/6 = No

RPs between Processor PC and PCH PC1/2/3/4/5/6 = No

PCIe Controller (PC) Root Port (RP)

Peer-2-Peer (P2P) Mem Read Transactions

No

PCIe Controller (PC) Root Port (RP)

Peer-2-Peer (P2P) MCTP VDM Transactions

RPs between and within PCH PC1/2/3/4/5/6 = Yes

RPs between Processor PC and PCH PC1/2/3/4/5/6 = Yes

PCIe Root Port Initiated Dynamic Width Change

No

PCIe Root Port Initiated Dynamic Speed Change

Yes

End Point Device Initiated Dynamic Width Change

Yes

End Point Device Initiated Dynamic Speed Change

Yes

Flattening Portal Bridge (FPB)

No

Notes:
  1. No restrictions on PCIe Controller. PCIe RAID is expected to work across all Root Ports within a PCIe Controller and between Root Ports from different PCIe Controllers (Processor and PCH).
  2. No RAID support between PCIe and SATA storage devices.
  3. The Intel® Rapid Storage Technology (RST) does not restrict RAID modes so if any unsupported RAID mode is enabled it is up to the motherboard designer to validate any non-supported RAID mode.