Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
IIO Functional Description
46
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
• 2.5 GHz (1.0) and 5 GHz (2.0) and 8 GHz (3.0)
• Full peer-to-peer support between PCI Express interfaces
• Full support for software-initiated PCI Express power management
• x8 Server I/O Module (SIOM)
6.1.2
Direct Media Interface (DMI2) Features
• One x4 DMI 2.0 link interface supporting 2.5 GB/s/direction (PCIe physical layer) 
peak bandwidth
• Can also operate as a x4 2.0 PCIe link
6.1.3
PCIe* 3.0
• 8  GT/s  rate
• TLP Processing Hints (TPH) for data push to cache
• Address Translation Services (ATS 1.0)
• PCIe Atomic Operations Completer Capability
6.1.4
Intel
®
 I/O Acceleration Technology (Intel
® 
I/OAT) 4
• 3.0 I/O caching hints used for Intel
®
 I/O Acceleration Technology (Intel
®
 I/OAT)
• ATR enhancements (SocketID returned on reads)
• 3.0 caching hints extend to Intel QuickData Technology DMA traffic
6.1.5
Intel
®
 Virtualization Technology (Intel
®
 VT) for Directed 
I/O (Intel
®
 VT-d 2) Features
• Original Intel VT-d features
• Improved invalidation architecture
• End point caching support (ATS)
• Interrupt remapping
• 4K/2M/1G/512G super page support
• Posted Interrupts
6.1.6
Power Management Support Features
• PCI Express Link states (L0, L1)
• System states (S0, S4, S5)
6.1.7
Security Features
• TPM1.2 and Intel VT-d for server security
• Intel TXT for client security
• HW for integrated TPM via the integrated Intel ME
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