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Introduction
20 Datasheet, Volume 1
Intel
®
VT-d
Intel
®
Virtualization Technology (Intel
®
VT) for Directed I/O. Intel VT-d is a hardware
assist, under system software (Virtual Machine Manager or operating system) control,
for enabling I/O device virtualization. Intel VT-d also brings robust security by
providing protection from errant DMAs by using DMA remapping, a key feature of Intel
VT-d.
IOV I/O Virtualization
ISA
Industry Standard Architecture. This is a legacy computer bus standard for IBM PC
compatible computers.
ITPM Integrated Trusted Platform Module
LCD Liquid Crystal Display
LFM Low Frequency Mode
LPC Low Pin Count
LPM Low Power Mode
LVDS
Low Voltage Differential Signaling. A high speed, low power data transmission
standard used for display connections to LCD panels.
MLE Measured Launched Environment
MSI Message Signaled Interrupt
NCTF
Non-Critical to Function. NCTF locations are typically redundant ground or non-critical
reserved, so the loss of the solder joint continuity at end of life conditions will not
affect the overall product functionality.
ODT On-Die Termination
PAIR Power Aware Interrupt Routing
PCH
Platform Controller Hub. The chipset with centralized platform capabilities including the
main I/O interfaces along with display connectivity, audio features, power
management, manageability, security and storage features.
PECI Platform Environment Control Interface.
PEG
PCI Express* Graphics. External Graphics using PCI Express* Architecture. A high-
speed serial interface whose configuration is software compatible with the existing PCI
specifications.
PGA Pin Grid Array
PLL Phase Lock Loop
PME Power Management Event
PPD Precharged Power Down
Processor The 64-bit, single-core or multi-core component (package).
Processor Core
The term “processor core” refers to Si die itself that can contain multiple execution
cores. Each execution core has an instruction cache, data cache, and 256-KB L2 cache.
All execution cores share the L3 cache.
Processor Graphics Intel Processor Graphics
Rank
A unit of DRAM corresponding four to eight devices in parallel, ignoring ECC. These
devices are usually, but not always, mounted on a single side of a SO-DIMM.
SCI System Control Interrupt. Used in ACPI protocol.
Intel SDRRS
Technology
Intel Seamless Display Refresh Rate Switching Technology
SMEP Supervisor Mode Execution Protection
Table 1-2. Terminology (Sheet 2 of 3)
Term Description