Intel E7-8891 v2 CM8063601377422 ユーザーズマニュアル

製品コード

CM8063601377422

Intel

Xeon

Processor E7-2800/4800/8800 v2 Product Family

Datasheet Volume Two: Functional Description, February 2014

IIO Functional Description

6.1

Integrated I/O Module Overview

The IIO module provides:

• x32 PCI Express interface for general purpose PCI Express devices at 3.0 speeds
• x4 DMI interface for the southbridge component (PCH) or a x4 PCIe Gen2 device
• Intel

QuickData Technology DMA Engine to support IOAT, ROL and External

Storage Usages

• IOxAPIC controller used to convert legacy interrupts from I/O devices into

messages to the CPU’s Local APIC

• I/O Virtualization Logic (Intel VT-d2)
• Security features to support Intel TXT

6.1.1

PCI Express* Features

• Compliant with the PCI Express Base Specification, Revision 2.0 and Revision 3.0
• Two x16 PCI Express 3.0 interface configurable to x8 and x4 links.

Figure 6-1. Integrated I/O Module High-level Block Diagram

Vtd-2

Coherency Engine

Write Cache

IOAPIC

Crystal

Beach

DMA

PCIe Gen3

DMI

x16

PCIe Gen3

x16