Intel CM8063601537106 Arkusz Danych Strona 45

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Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family 45
Datasheet Volume Two: Functional Description, February 2014
IIO Functional Description
6 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
x4 x4 x4 x4
x8
x8
x16
PCIe Gen3
x4 x4 x4
x4
x8 x8
x16
HP
HP
x4
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