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®
No computer system can provide absolute security under all conditions. Intel
a computer system with Intel
Modules and an Intel TXT-compatible measured launched environment (MLE). The MLE could consist of a virtual machine monitor,
an OS or an application. In addition, Intel TXT requires the system to contain a TPM v1.2, as defined by the Trusted Computing
Group and specific software for some uses. For more information, see http://www.intel.com/technology/security/
®
Virtualization Technology requires a computer system with an enabled Intel® processor, BIOS, virtual machine monitor
Intel
(VMM) and, for some uses, certain computer system software enabled for it. Functionality, performance or other benefits will vary
depending on hardware and software configur ations and may re quire a BIOS update. S oftware applicatio ns may not be compatible
®
Virtualization Technology, an Intel TXT-enabled processor, chipset, BIOS, Authenticated Code
Tru sted Ex ecution Technology (Intel® TXT) requires
with all operating systems. Please check with your application vendor.
®
Active Management Technology requires the computer system to have an Intel(R) AMT-enabled chipset, network hardware
Intel
and software, as well as connection with a power source and a corporate network connection. Setup requires configuration by the
purchaser and may require scripting with the management console or further integration into existing security frameworks to
enable certain functionality. It may also require modifications of implementation of new business processes. With regard to
notebooks, Intel AMT may not be available or certain capabilities may be limited over a host OS-based VPN or when connecting
wirelessly, on battery power, sleeping, hibernating or powered off. For more information, see http://www.intel.com/technology/
platform-technology/intel-amt/
Hyper-Threading Technology requires a computer system with a processor supporting HT Technology and an HT Technologyenabled chipset, BIOS and operating system. Performance will va ry de pe ndi ng on the specific hardware and software y ou use. For
more information including details on which processors support HT Technology, see http://www.intel.com/info/hyperthreading.
“Intel® Turbo Boost Technology requires a PC with a processor with Intel Turbo Boost Technology capability. Intel Turbo Boost
Technology performance varies depending on hardware, software and overall system configuration. Check with your PC
manufacturer on whether your system delivers Intel Turbo Boost Technology.For more information, see http://www.intel.com/
technology/turboboost.”
Enhanced Intel SpeedStep
®
Technology See the Processor Spec Finder or contact your Intel representative for more information.
Intel processor numbers are not a measure of performance. Processor numb ers differentia te features withi n each processo r family,
not across different processor families. See www.intel.com/products/processor_number for details.
64-bit computing on Intel architecture requires a computer system with a processor, chipset, BIOS, operating system, device
drivers and applications enabled for Intel® 64 architecture. Performance will vary depending on your hardware and software
configurations. Consult with your system vendor for more information.
The Desktop 3rd Generation Intel® Core™ processor family, Desktop Intel® Pentium®
processor family , and Desktop Intel® Celeron® processor family are the next
generation of 64-bit, multi-core processors built on 22-nanometer process technology.
The processors are designed for a two-chip platform. The two-chip platform consists of
a processor and a Platform Controller Hub (PCH) and enables higher performance,
lower cost, easier validation, and improved x-y footprint. The processor includes an
Integrated Display Engine, Processor Graphics, PCI Express ports, and an Integrated
Memory Controller. The processor is designed for desktop platforms. The processor
offers either 6 or 16 graphic execution units (EUs). The number of EU engines
supported may vary between processor SKUs. The processor is offered in an 1155-land
LGA package (H2). Figure 1-1 shows an example desktop platform block diagram.
The Datasheet provides DC specifications, pinout and signal definitions, interface
functional descriptions, and additional feature information pertinent to the
implementation and operation of the processor on its respective platform.
Note:Throughout this document, the Intel® 6 / 7 Series Chipset Platform Controller Hub may
Note:Throughout this document, the Desktop 3rd Generation Intel® Core™ processor family ,
Note:Throughout this document, the Desktop 3rd Generation Intel® Core™ processor family ,
Note:Some processor features are not available on all platforms. Refer to the processor
Note:The term “DT” refers to desktop platforms.
be referred to as “PCH”.
Desktop Intel
family may be referred to simply as “processor”.
Desktop Intel
family refer to the processor SKUs listed in
specification update for details.
®
Pentium® processor family, and Desktop Intel® Celeron® processor
®
Pentium® processor family, and Desktop Intel® Celeron® processor
Table 1-1.
Datasheet, Volume 19
Figure 1-1. Desktop Processor Platform
I
n
t
e
l
®
F
l
e
x
i
b
l
e
D
i
s
p
l
a
y
I
n
t
e
r
f
a
c
e
DMI2 x4
Discrete
Graphics (PEG)
Analog CRT
Gigabit
Network Connection
USB 2.0 / USB 3.0
1
Intel®HD Audio
FWH
Super I/O
Serial ATA
DDR3
PCI Express* 3.0
1 x16 or 2x8
8 PCI Express* 2.0
x1 Ports
(5 GT/s)
SPI
Digital Display x 3
PCI Express*
SPI Flash x 2
LPC
SMBUS 2.0
GPIO
WiFi / WiMax
Controller Link 1
PECI
Intel®6/7 Series
Chipset Families
Intel
®
Management
Engine
Intel
®
Processor
Note:
1. USB 3.0 is supported on the Intel
®
7 Series Chipset family only.
Introduction
10Datasheet, Volume 1
Introduction
1.1Processor Feature Details
• Four or two execution cores
• A 32-KB instruction and 32-KB data first-level cache (L1) for each core
• A 256-KB shared instruction / data second-level cache (L2) for each core
• Up to 8-MB shared instruction / data third-level cache (L3), shared among all cores
1.1.1Supported Technologies
•Intel® Virtualization Technology (Intel® VT) for Directed I/O (Intel® VT-d)
•Intel® Virtualization Technology (Intel® VT) for IA-32, Intel® 64 and Intel®
Architecture (Intel® VT-x)
Intel® Active Management Technology (Intel® AMT) 8.0
•Intel® Advanced Encryption Standard New Instructions (Intel® AES-NI)
• PCLMULQDQ Instruction
• RDRAND instruction for random number generation
• SMEP – Supervisor Mode Execution Protection
• PAIR – Power Aware Interrupt Routing
1.2Interfaces
1.2.1System Memory Support
• T wo channels of DDR3 Unbuffered Dual In-Line Memory Modules (UDIMM) or DDR3
Unbuffered Small Outline Dual In-Line Memory Modules (SO-DIMM) with a
maximum of two DIMMs per channel
• Single-channel and dual-channel memory organization modes
• Data burst length of eight for all memory organization modes
• Memory DDR3 data transfer rates of 1333 MT/s and 1600 MT/s. The DDR3 data
transfer rates supported by the processor is dependent on the PCH SKU in the
target platform:
— Desktop PCH platforms support 1333 MT/s and 1600 MT/s for One DIMM and
Two DIMMs per channel
— All In One platforms (AIO) support 1333 MT/s and 1600 MT/s for One DIMM
and Two DIMMs per channel
• 64-bit wide channels
• System Memory Interface I/O Voltage of 1.5 V
• DDR3 and DDR3L DIMMs/DRAMs running at 1.5 V
• No support for DDR3L DIMMs/DRAMS running at 1.35 V
Datasheet, Volume 111
Introduction
• Support memory configurations that mix DDR3 DIMMs/DRAMs with DDR3L
DIMMs/DRAMs running at 1.5 V
• The type of the DIMM modules supported by the processor is dependent on the PCH
SKU in the target platform:
— Desktop PCH platforms support non-ECC UDIMMs only
— All In One platforms (AIO) support SO-DIMMs
• Theoretical Maximum Memory Bandwidth:
— 10.6 GB/s in single-channel mode or 21.3 GB/s in dual-channel mode assuming
DDR3 1333 MT/s
— 12.8 GB/s in single-channel mode or 25.6 GB/s in dual-channel mode assuming
DDR3 1600 MT/s
• Processor on-die Reference Voltage (VREF) generation for both DDR3 Read
(RDVREF) and Write (VREFDQ)
• 1Gb, 2Gb, and 4Gb DDR3 DRAM device technologies are supported
— Using 4Gb DRAM device technologies, the largest memory capacity possible is
32
GB, assuming Dual Channel Mode with four x8 dual ranked DIMM memory
configuration
• Up to 64 simultaneous open pages, 32 per channel (assuming 8 ranks of 8 bank
devices)
• The PCI Express* lanes (PEG[15:0] TX and RX) are fully-compliant to the PCI
Express Base Specification, Revision 3.0, including support for 8.0 GT/s transfer
speeds.
• Processor with Desktop PCH Supports (may vary depending on PCH SKUs)
12Datasheet, Volume 1
• PCI Express* supported configurations in desktop products
ConfigurationOrganizationDesktop
1
22x8Graphics, I/O
31x16Graphics, I/O
1x8
2x4
Graphics, I/O
• The port may negotiate down to narrower widths
— Support for x16/x8/x4/x2/x1 widths for a single PCI Express* mode
• 2.5 GT/s, 5.0 GT/s and 8.0 GT/s PCI Express* frequencies are supported
• Gen1 Raw bit-rate on the data pins Gen 2 Raw bit -rate on the data pins of 5.0 GT/s,
resulting in a real bandwidth per pair of 500 MB/s given the 8b/10b encoding used
Introduction
to transmit data across this interface. This also does not account for packet
overhead and link maintenance.
• Maximum theoretical bandwidth on the interface of 8 GB/s in each direction
simultaneously, for an aggregate of 16 GB/s when x16 Gen 2
• Gen 3 raw bit-rate on the data pins of 8.0 GT/s, resulting in a real bandwidth per
pair of 984 MB/s using 128b/130b encoding to transmit data across this interface.
This also does not account for packet overhead and link maintenance.
• Maximum theoretical bandwidth on the interface of 16 GB/s in each direction
simultaneously, for an aggregate of 32 GB/s when x16 Gen 3
• Hierarchical PCI-compliant configuration mechanism for downstream devices
• Traditional PCI style traffic (asynchronous snooped, PCI ordering)
• PCI Express* extended configuration space. The first 256 bytes of configuration
space aliases directly to the PCI Compatibility configuration space. The remaining
portion of the fixed 4-KB block of memory-mapped space above that (starting at
100h) is known as extended configuration space.
• PCI Express* Enhanced Access Mechanism. Accessing the device configuration
space in a flat memory mapped fashion.
• Automatic discovery, negotiation, and training of link out of reset
• Traditional AGP style traffic (asynchronous non-snooped, PCI-X Relaxed ordering)
• Peer segment destination posted write traffic (no peer-to-peer read traffic) in
Virtual Channel 0:
— DMI -> PCI Express* Port 0
• 64-bit downstream address format; however, the processor never generates an
address above 64 GB (Bits 63:36 will always be zeros)
• 64-bit upstream address format; however, the processor responds to upstream
read transactions to addresses above 64 GB (address e s wh ere any of Bits 63:36
are nonzero) with an Unsupported Request response. Upstream write transactions
to addresses above 64
GB will be dropped.
• Re-issues Configuration cycles that have been previously completed with the
Configuration Retry status
• PCI Express* reference clock is 100-MHz differential clock
• Power Management Event (PME) functions
• Dynamic width capability
• Message Signaled Interrupt (MSI and MSI-X) messages
• Polarity inversion
Note:The processor does not support PCI Express* Hot-Plug.
Datasheet, Volume 113
1.2.3Direct Media Interface (DMI)
• DMI 2.0 support
• Four lanes in each direction
• 5 GT/s point-to-point DMI interface to PCH is supported
• Raw bit-rate on the data pins of 5.0 Gb/s, resulting in a real bandwidth per pair of
500 MB/s given the 8b/10b encoding used to transmit data across this interface.
Does not account for packet overhead and link maintenance.
• Maximum theoretical bandwidth on interface of 2 GB/s in each direction
simultaneously, for an aggregate of 4 GB/s when DMI x4
• Shares 100-MHz PCI Express* reference clock
• 64-bit downstream address format; however, the processor never generates an
address above 64 GB (Bits 63:36 will always be zeros)
• 64-bit upstream address format, but the processor responds to upstream read
transactions to addresses above 64 GB (addresses where any of Bits 63:36 are
nonzero) with an Unsupported Request response. Upstream write transactions to
addresses above 64 GB will be dropped.
• Supports the following traffic types to or from the PCH:
— Message Signaled Interrupt (MSI and MSI-X) messages
• Downstream SMI, SCI and SERR error indication
• Legacy support for ISA regime protocol (PHOLD / PHOLDA) required for parallel
port DMA, floppy drive, and LPC bus masters
• DC coupling – no capacitors between the processor and the PCH
• Polarity inversion
• PCH end-to-end lane reversal across the link
• Supports Half Swing “low-power / low-voltage”
Introduction
1.2.4Platform Environment Control Interface (PECI)
The PECI is a one-wire interface that provides a communication channel between a
PECI client (the processor) and a PECI master. The processor supports the PECI 3.0
Specification.
1.2.5Processor Graphics
• The Processor Graphics contains a refresh of the seventh generation graphics core
enabling substantial gains in performance and lower power consumption. Up to
EU support.
16
• Next Generation Intel Clear Video Technology HD Support is a collection of video
playback and enhancement features that improve the end user’s viewing
experience
— Encode / transcode HD content
— Playback of high definition content including Blu-ray Disc*
— Superior image quality with sharper, more colorful images
— Playback of Blu-ray Disc* S3D content using HDMI* (V.1.4 with 3D)
14Datasheet, Volume 1
Introduction
• DirectX* Video Acceleration (DXVA) support for accelerating video processing
— Full AVC/VC1/MPEG2 HW Decode
• Advanced Scheduler 2.0, 1.0, XPDM support
• Windows* 7, Windows* XP, OSX, Linux OS Support
• DirectX* 11, DirectX* 10.1, DirectX* 10, DirectX* 9 support
•OpenGL* 3.0 support
• Switchable Graphics support on Desktop AIO platforms with MxM solutions only
Processor Family, and Desktop Intel® Celeron® Processor Family
Number
i7-3770T451600 MHz2.5 GHz up to 3.7 GHz650 MHz up to 1150 MHz94
i7-3770S651600 MHz3.1 GHz up to 3.9 GHz650 MHz up to 1150 MHz103
i7-3770K771600 MHz3.5 GHz up to 3.9 GHz650 MHz up to 1150 MHz105
i7-3770771600 MHz3.4 GHz up to 3.9 GHz650 MHz up to 1150 MHz105
i5-3570T451600 MHz2.3 GHz up to 3.3 GHz650 MHz up to 1150 MHz94
i5-3570S651600 MHz3.1 GHz up to 3.8 GHz650 MHz up to 1150 MHz103
i5-3570K771600 MHz3.4 GHz up to 3.8 GHz650 MHz up to 1150 MHz105
i5-3570771600 MHz3.4 GHz up to 3.8 GHz650 MHz up to 1150 MHz105
i5-3550S651600 MHz3 GHz up to 3.7 GHz650 MHz up to 1150 MHz103
i5-3550771600 MHz3.3 GHz up to 3.7 GHz650 MHz up to 1150 MHz105
i5-3475S651600 MHz2.9 GHz up to 3.6 GHz650 MHz up to 1100 MHz103
i5-3470S651600 MHz2.9 GHz up to 3.6 GHz650 MHz up to 1100 MHz103
i5-3470T351600 MHz2.9 GHz up to 3.6 GHz650 MHz up to 1100 MHz,91
i5-3470771600 MHz3.2 GHz up to 3.6 GHz650 MHz up to 1100 MHz105
i5-3450S651600 MHz2.8 GHz up to 3.5 GHz650 MHz up to 1100 MHz103
i5-3450771600 MHz3.1 GHz up to 3.5 GHz650 MHz up to 1100 MHz105
i5-3350P691600 MHz3.1 GHZ up to 3.3 GHZN/A105
i5-3340771600 MHz3.1 GHZ up to 3.3 GHZ650 MHz up to 1050 MHz105
Processor Family, and Desktop Intel® Celeron® Processor Family
SKUs (Sheet 2 of 2)
Processor
Number
i5-3340S651600 MHz3.0 GHZ up to 3.3 GHZ650 MHz up to 1050 MHz103
i5-3335S651600 MHz2.7 GHz up to 3.2 GHz650 MHz up to 1050 MHz103
i5-3330S651600 MHz2.7 GHz up to 3.2 GHz650 MHz up to 1050 MHz103
i3-3250T351600 MHzN/A650 MHz up to 1050 MHz91
i3-3250551600 MHzN/A650 MHz up to 1050 MHz105
i3-3245551600 MHzN/A650 MHz up to 1050 MHz105
i5-3330771600 MHz3 GHz up to 3.2 GHz650 MHz up to 1050 MHz105
i3-3240T351600 MHzUp to 3.0 GHz 650 MHz up to 1050 MHz91
i3-3240551600 MHzUp to 3.4 GHz 650 MHz up to 1050 MHz105
i3-3225551600 MHzUp to 3.3 GHz650 MHz up to 1050 MHz105
i3-3220T351600 MHzUp to 2.8 GHz 650 MHz up to 1050 MHz91
i3-3220551600 MHzUp to 3.3 GHz 650 MHz up to 1050 MHz105
i3-3210551600 MHzUp to 3.2 GHz 650 MHz up to 1050 MHz105
G2140551600 MHzN/A650 MHz up to 1050 MHz105
G2130551600 MHzUp to 3.2 GHz 650 MHz up to 1050 MHz105
G2120T3 51600 MHzN/A650 MHz up to 1050 MHz91
G2120551600 MHz3.1 GHZ 650 MHZ up to 1.05 GHZ105
G2100T351600 MHz2.6 GHZ650 MHZ up to 1.05 GHZ91
G2030T3 51600 MHzN/A650 MHz up to 1050 MHz91
G2030351600 MHzN/A650 MHz up to 1050 MHz105
G2020551600 MHz2.9 GHZ 650 MHZ up to 1050 MHz105
G2020T3 51600 MHz2.5 GHZ 650 MHZ up to 1050 MHz91
G2010551600 MHz2.8 GHZ 650 MHZ up to 1050 MHz105
G1630551600 MHz2.8 GHZ 650 MHZ up to 1050 MHz105
G1620551600 MHz2.7 GHZ 650 MHZ up to 1050 MHz105
G1620T3 51600 MHz2.4 GHZ 650 MHZ up to 1050 MHz91
G1610551600 MHz2.6 GHZ 650 MHZ up to 1050 MHz105
G1610T3 51600 MHz2.3 GHZ 650 MHZ up to 1050 MHz91
A1018351600 MHz2.1 GHz 650 MHz up to 1 GHz105
TDP
(W)
IA LFM
Frequency
IA Frequency rangeGT Frequency range
T
jMAX
(°C)
1.5Package
The processor socket type is noted as LGA 1155. The package is a 37.5 x 37.5 mm Flip
Chip Land Grid Array (FCLGA 1155). See the Desktop 3rd Generation Intel
Processor Family, Desktop Intel
®
Pentium® Processor Family, Desktop Intel® Celeron®
Processor Family, and LGA1155 Socket Thermal / Mechanical Specifications and Design
Guidelines for complete details on the package.
Datasheet, Volume 117
®
Core™
1.6Processor Compatibility
2 x 330 µF
2 x 330 µF +
1 placeholder
VCCIO
VR
VDDQ
VR
VCore
VR
VCCSA
VR
VAXG
VR
DDR3
DDR3
G2_Core: 1.5 V
G3_Core: 1.5 V
G2_Core: 1.05 V
G3_Core: 1.05 V
VCCIO_SEL#
G2_Core: ‘1’
G3_Core: ‘1’
Processor
PCH
VCCSA_VID
G2_Core: ‘0’
G3_Core: ‘0’
G2_Core: 0.925 V
G3_Core: 0.925 V
PEG AC Decoupling
PEG Gen 1,2 – 100 nF
PEG Gen 1,2,3 – 220 nF
*VAXG: 2 ph required for
some of the SKUs
SVID
PROC_SELECT#
G2_Core: ‘1’
G3_Core: ‘0’
Controls DMI
And FDI
termination
DF_TVS
The Desktop 3rd Generation Intel® Core™ processor family, Desktop Intel® Pentium®
processor family, Desktop Intel
requirements that differentiate it from a 2nd Generation Intel® Core™ processor family
Desktop, Intel
®
Pentium® processor family Desktop, Intel® Celeron® processor Family
Desktop processor. Platforms intending to support both processor families need to
address the platform compatibility requirements detailed in Figure 1-2.
Core™ processor family Desktop, Intel® Pentium® processor
®
Celeron® processor family
Core™ processor family, Desktop Intel® Pentium®
Introduction
1.7Terminology
Table 1-2.Terminology (Sheet 1 of 3)
TermDescription
ACPIAdvanced Configuration and Power Interface
ADBAutomatic Display Brightness
APDActive Power Down
ASPMActive State Power Management
BGABall Grid Array
BLTBlock Level Transfer
CLTTClosed Loop T hermal Throttling
CRTCathode Ray Tube
cTDPConfigurable Thermal Design Power
DDDR3L-RSDDR3L Reduced Standby Power
DDR3Third-generation Double Data Rate SDRAM memory technology
DDR3LDDR3 Low Voltage
DMADirect Memory Access
DMIDirect Media Interface
DPDisplayPort*
DPSTDisplay Power Savings Technology
DTSDigital Thermal Sensor
ECEmbedded Controller
ECCError Correction Code
eDP*Embedded DisplayPort*
Enhanced Intel
SpeedStep
Technology
EPGElectrical Power Gating
EUExecution Unit
Execute Disable Bit
HDMI*High Definition Multimedia Interface
HFMHigh Frequency Mode
IMCIntegrated Memory Controller
®
Intel
64 Technology 64-bit memory extensions to the IA-32 architecture
®
Intel
DPSTIntel® Display Power Saving Technology
®
Intel
FDIIntel® Flexible Display Interface
®
Intel
TXTIntel® Trusted Execution Technology
®
Intel
Virtualization
Technology
®
®
Technology that provides power management capabilities to laptops.
The Execute Disable bit allows memory to be marked as executable or non-executable,
when combined with a supporting operating system. If code attempts to run in nonexecutable memory the processor r aises an error t o the operat ing system. This featu re
can prevent some classes of viruses or worms that exploit buffer overrun
vulnerabilities and can thus help improve the overall security of the system. See the
®
Intel
64 and IA-32 Architectures Software Developer's Manuals for more detailed
information.
Processor virtualization which when used in conjunction with Virtual Machine Monitor
software enables multiple, robust independent software environments inside a single
platform.
Datasheet, Volume 119
Table 1-2.Terminology (Sheet 2 of 3)
TermDescription
®
Virtualization T echnology (Intel® VT) for Directed I/O. Intel VT -d is a hardware
Intel
®
Intel
VT-d
IOVI/O Virtualization
ISA
ITPMIntegrated Trusted Platform Module
LCDLiquid Crystal Display
LFMLow Frequency Mode
LPCLow Pin Count
LPMLow Power Mode
PGAPin Grid Array
PLLPhase Lock Loop
PMEPower Management Event
PPDPrecharged Power Down
ProcessorThe 64-bit, single-core or multi-core component (package).
Processor Core
Processor GraphicsIntel Processor Graphics
Rank
SCISystem Control Interrupt. Used in ACPI protocol.
Intel SDRRS
Technology
SMEP Supervis or Mode Execution Protection
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.
Industry Standard Architecture. Th is is a legacy computer bus standard for IBM PC
compatible computers.
Low Voltage Differential Signaling. A high speed, low power data transmission
standard used for display connections to LCD panels.
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.
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.
PCI Express* Graphics. External Graphics using PCI Express* Architecture. A highspeed serial interface whose configuration is software compatible with the existing PCI
specifications.
The term “processor core” refers to Si die itself that can contain multiple execution
cores. Each execution core has an ins truction cache, data cache , and 256-KB L2 cache.
All execution cores share the L3 cache.
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.
A non-operational state. The processor may be installed in a platform, in a tray, or
loose. Processors may be sealed in packaging or exposed to free air. Under these
Storage Conditions
SVIDSerial Voltage IDentification interface
TACThermal Averaging Constant
TAPTest Access Point
TCCThermal Control Circuit
TDCThermal Design Current
TDPThermal Design Power
TLPTransaction Layer Packet
V
VTSVirtual Temperature Sensor
x1Refers to a Link or Port with one Physical Lane.
x16Refers to a Link or Port with sixteen Physical Lanes.
x4Refers to a Link or Port with four Physical Lanes.
x8Refers to a Link or Port with eight Physical Lanes.
conditions, processor landings should not be connected to any supply voltages, have
any I/Os biased or receive any clocks. Upon exposure to “free air” (that is, unsealed
packaging or a device removed from packaging material) the processor must be
handled in accordance with moisture sensitivity labeling (MSL) as indicated on the
packaging material.
Graphics core power supply
Processor core power supply
High Frequency I/O logic power supply
PLL power supply
System Agent (memory controller, DMI, PCIe controllers, and display engine) power
Processor Family, and Desktop Intel® Celeron® Processor Family
®
Processor Family, and Desktop Intel® Celeron® Processor Family
®
Processor Family, Desktop Intel® Celeron® Processor Family, and
®
64 and IA-32 Architectures Software Developer's Manuals http://www.intel.com/produ
Volume 1: Basic Architecture253665
Volume 2A: Instruction Set Reference, A-M 253666
Volume 2B: Instruction Set Reference, N-Z 253667
Volume 3A: System Programming Guide 253668
Volume 3B: System Programming Guide 253669
®
Core™ Processor Family, Desktop Intel®
®
Core™ Processor Family, Desktop Intel®
®
Core™ Processor Family, Desktop Intel®
Document Number /
Location
326765
326766
326767
fications
cts/processor/manuals/inde
x.htm
Note: Contact your Intel representative for the latest revision of this item.
§ §
22Datasheet, Volume 1
Interfaces
2Interfaces
This chapter describes the interfaces supported by the processor.
2.1System Memory Interface
2.1.1System Memory Technology Supported
The Integrated Memory Controller (IMC) supports DDR3 / DDR3L protocols with two
independent, 64-bit wide channels, each accessing one or two DIMMs. The type of
memory supported by the processor is dependant on the PCH SKU in the target
platform. Refer to Chapter 1 for supported memory configuration details.
Note:The processor supports only JEDEC approved memory modules and devices.
Note:The IMC supports a maximum of two DIMMs per channel; thus, allowing up to four
device ranks per channel.
Note:The supported memory interface frequencies and number of DIMMs per channel are
SKU dependent.
Table 2-1.Processor DIMM Support Summary by Product
Processor
cores
Dual Core,
Quad Core
Dual Core,
Quad Core
Note: There is no support for DDR3L DIMMs/DRAMS running at 1.35 V.
2 GB2 Gb128 M x 168214/1088K
4 GB4 Gb256 M x 168215/1088K
1 GB1 Gb128 M x 88114/1088K
2 GB2 Gb256 M x 88115/1088K
4 GB4 Gb512 M x 88116/1088K
1 GB2 Gb128 M x 164114/1088K
2 GB4 Gb256 M x 164115/1088K
2 GB1 Gb128 M x 816214/1088K
4 GB2 Gb256 M x 816215/1088K
8 GB4 Gb512 M x 816216/ 1088K
DRAM
Device
Technology
DRAM
Organization
# of
DRAM
Devices
# of
Physical
Device
Ranks
# of
Row/Col
Address
Bits
# of
Banks
Inside
DRAM
Page
Size
Note:
1.System memory configurations are based on availability and are subject to change.
2.1.2System Memory Timing Support
The IMC supports the following Speed Bins, CAS Write Latency (CWL), and command
signal mode timings on the main memory interface:
• tCL = CAS Latency
• tRCD = Activate Command to READ or WRITE Command delay
• tRP = PRECHARGE Command Period
• CWL = CAS Write Latency
• Command Signal modes = 1N indicates a new command may be issued every clock
and 2N indicates a new command may be issued every 2 clocks. Command launch
mode programming depends on the transfer rate and memory configuration.
24Datasheet, Volume 1
Interfaces
Table 2-4.System Memory Timing Support
Segment
Desktop
AIO
Note:
1.System memory timing support is based on availability and is subject to change.
Transfer
Rate
(MT/s)
13339997
16001111118
13339997
1600111111811N/2N
tCL
(tCK)
tRCD
(tCK)
tRP
(tCK)
2.1.3System Memory Organization Modes
The IMC supports two memory organization modes, single-channel and dual-channel.
Depending upon how the DIMM Modules are populated in each memory channel, a
number of different configurations can exist.
2.1.3.1Single-Channel Mode
In this mode, all memory cycles are directed to a single-channel. Single-channel mode
is used when either Channel A or Channel B DIMM connectors are populated in any
order, but not both.
The IMC supports Intel Flex Memory Technology Mode. Memory is divided into a
symmetric and a asymmetric zone. The symmetric zone starts at the lowest address in
each channel and is contiguous until the asymmetric zone begins or until the top
address of the channel with the smaller capacity is reached. In this mode, the system
runs with one zone of dual-channel mode and one zone of single-channel mode,
simultaneously, across the whole memory array.
Note:Channels A and B can be mapped for physical channel 0 and 1 respectively or vice
versa; however, channel A size must be greater or equal to channel B size.
CH A and C H B can be configured to be physical channels 0 or 1
B – The largest physical mem ory amount of the sm aller size me m ory module
C – The rema ining physical m em ory amoun t of the larger size m em ory mod ule
Interfaces
2.1.3.2.1Dual-Channel Symmetric Mode
Note:The DRAM device technology and width may vary from one channel to the other.
2.1.4Rules for Populating Memory Slots
Note:In a Two DIMM Per Channel (2DPC) daisy chain layout memory configuration, the
Dual-Channel Symmetric mode, also known as interleaved mode, provides maximum
performance on real world applications. Addresses are ping-ponged between the
channels after each cache line (64-byte boundary). If there are two requests, and the
second request is to an address on the opposite channel from the first, that request can
be sent before data from the first request has returned. If two consecutive cache lines
are requested, both may be retrieved simultaneously, since they are ensured to be on
opposite channels. Use Dual-Channel Symmetric mode when both Channel A and
Channel B DIMM connectors are populated in any order, with the total amount of
memory in each channel being the same.
When both channels are populated with the same memory capacity and the boundary
between the dual channel zone and the single channel zone is the top of memory, the
IMC operates completely in Dual-Channel Symmetric mode.
In all System Memory Organization Modes, the frequency and latency timings of the
system memory is the lowest supported frequency and slowest supported latency
timings of all memory DIMM modules placed in the system, as determined through the
SPD registers.
furthest DIMM from the processor of any given channel must always be populated first.
26Datasheet, Volume 1
Interfaces
2.1.5Technology Enhancements of Intel® Fast Memory Access
(Intel® FMA)
The following sections describe the Just-in-Time Scheduling, Command Overlap, and
Out-of-Order Scheduling Intel FMA technology enhancements.
2.1.5.1Just-in-Time Command Scheduling
The memory controller has an advanced command scheduler where all pending
requests are examined simultaneously to determine the most efficient request to be
issued next. The most efficient request is picked from all pending requests and issued
to system memory Just-in-Time to make optimal use of Command Overlapping. Thus,
instead of having all memory access requests go individually through an arbitration
mechanism forcing requests to be executed one at a time, they can be started without
interfering with the current request allowing for concurrent issuing of requests. This
allows for optimized bandwidth and reduced latency while maintaining appropriate
command spacing to meet system memory protocol.
2.1.5.2Command Overlap
Command Overlap allows the insertion of the DRAM commands between the Activate,
Precharge, and Read/Write commands normally used, as long as the inserted
commands do not affect the currently executing command. Multiple commands can be
issued in an overlapping manner, increasing the efficiency of system memory protocol.
2.1.5.3Out-of-Order Scheduling
While leveraging the Just-in-Time Scheduling and Command Overlap enhancements,
the IMC continuously monitors pending requests to system memory for the best use of
bandwidth and reduction of latency. If there are multiple requests to the same open
page, these requests would be launched in a back to back manner to make optimum
use of the open memory page. This ability to reorder requests on the fly allows the IMC
to further reduce latency and increase bandwidth efficiency.
2.1.6Data Scrambling
The memory controller incorporates a DDR3 Data Scrambling feature to minimize the
impact of excessive di/dt on the platform DDR3 VRs due to successive 1s and 0s on the
data bus. Past experience has demonstrated that traffic on the data bus is not r andom.
Rather, it can have energy concentrated at specific spectral harmonics creating high
di/dt that is generally limited by data patterns that excite resonance between the
package inductance and on die capacitances. As a result the memory controller uses a
data scrambling feature to create pseudo-random patterns on the DDR3 data bus to
reduce the impact of any excessive di/dt.
2.1.7DDR3 Reference Voltage Generation
The processor memory controller has the capability of generating the DDR3 Reference
Voltage (VREF) internally for both read (RDVREF) and write (VREFDQ) operations. The
generated VREF can be changed in small steps, and an optimum VREF value is
determined for both during a cold boot through advanced DDR3 training procedures in
order to provide the best voltage and signal margins.
Datasheet, Volume 127
2.2PCI Express* Interface
Transaction
Data Link
Physical
Logical Sub-block
Electrical Sub-block
RXTX
Transaction
Data Link
Physical
Logical Sub-block
Electrical Sub-block
RXTX
This section describes the PCI Express interface capabilities of the processor. See the
PCI Express Base Specification for details of PCI Express.
The number of PCI Express controllers is dependent on the platform. Refer to Chapter 1
for details.
2.2.1PCI Express* Architecture
Compatibility with the PCI addressing model is maintained to ensure that all existing
applications and drivers may operate unchanged.
The PCI Express configuration uses standard mechanisms as defined in the PCI
Plug-and-Play specification. The processor external graphics ports support Gen 3 speed
as well. At 8 GT/s, Gen 3 operation results in twice as much bandwidth per lane as
compared to Gen 2 operation. The 16-lane PCI Express* graphics port can operate at
either 2.5 GT/s, 5 GT/s, or 8 GT/s.
PCI Express* Gen 3 uses a 128/130b encoding scheme, eliminating nearly all of the
overhead of the 8b/10b encoding scheme used in Gen 1 and Gen 2 operation.
Interfaces
The PCI Express architecture is specified in three layers – Transaction Layer, Data Link
Layer, and Physical Layer. The partitioning in the component is not necessarily along
these same boundaries. Refer to Figure 2-2 for the PCI Express layering diagram.
Figure 2-2. PCI Express* Layering Diagram
PCI Express uses packets to communicate information between components. Packets
are formed in the Transaction and Data Link Layers to carry the information from the
transmitting component to the receiving component. As the transmitted packets flow
through the other layers, they are extended with additional information necessary to
handle packets at those layers. At the receiving side, the reverse process occurs and
packets get transformed from their Physical Layer representation to the Data Link
Layer representation and finally (for Transaction Layer Packets) to the form that can be
processed by the Transaction Layer of the receiving device.
28Datasheet, Volume 1
Interfaces
Sequence
Number
FramingHeaderDataECRCLCRCFraming
Transaction Layer
Data Link Layer
Physical Layer
Figure 2-3. Packet Flow Through the Layers
2.2.1.1Transaction Layer
The upper layer of the PCI Express* architecture is the Transaction Layer. The
Transaction Layer's primary responsibility is the assembly and disassembly of
Transaction Layer Packets (TLPs). TLPs are used to communicate transactions, such as
read and write, as well as certain types of events. The Transaction Layer also manages
flow control of TLPs.
2.2.1.2Data Link Layer
The middle layer in the PCI Express stack, the Data Link Layer, serves as an
intermediate stage between the Transaction Layer and the Physical Layer.
Responsibilities of Data Link Layer include link management, error detection, and error
correction.
The transmission side of the Data Link Layer accepts TLPs assembled by the
Transaction Layer, calculates and applies data protection code and TLP sequence
number, and submits them to Physical Layer for transmission across the Link. The
receiving Data Link Layer is responsible for checking the integrity of received TLPs and
for submitting them to the T ransaction Layer for further processing. On detection of TLP
error(s), this layer is responsible for requesting retransm ission of TLPs until information
is correctly received, or the Link is determined to have failed. The Data Link Layer also
generates and consumes packets which are used for Link management functions.
2.2.1.3Physical Layer
The Physical Layer includes all circuitry for interface operation, including driver and
input buffers, parallel-to-serial and serial-to-parallel conversion, PLL(s), clock recovery
circuits and impedance matching circuitry. It also includes logical functions related to
interface initialization and maintenance. The Physical Layer exchanges data with the
Data Link Layer in an implementation-specific format, and is responsible for converting
this to an appropriate serialized format and transmitting it across the PCI Express Link
at a frequency and width compatible with the remote device.
Datasheet, Volume 129
2.2.2PCI Express* Configuration Mechanism
PCI-PCI Bridge
representing
root PCI
Express* ports
(Device 1 and
Device 6)
PCI Compatible
Host Bridge
Device
(Device 0)
PCI
Express*
Device
PEG0
DMI
The PCI Express (external graphics) link is mapped through a PCI-to-PCI bridge
structure.
Figure 2-4. PCI Express* Related Register Structures in the Processor
Interfaces
PCI Express extends the configuration space to 4096 bytes per-device/function, as
compared to 256 bytes allowed by the Conventional PCI Specification. PCI Express
configuration space is divided into a PCI-compatible region (that consists of the first
256 bytes of a logical device's configuration space) and an extended PCI Express region
(that consists of the remaining configuration space). The PCI-compatible region can be
accessed using either the mechanisms defined in the PCI specification or using the
enhanced PCI Express configuration access mechanism described in the PCI Express
Enhanced Configuration Mechanism section.
The PCI Express Host Bridge is required to translate the memory-mapped PCI Express
configuration space accesses from the host processor to PCI Express configuration
cycles. To maintain compatibility with PCI configuration addressing mechanisms, it is
recommended that system software access the enhanced configuration space using
32-bit operations (32-bit aligned) only. See the PCI Express Base Specification for
details of both the PCI-compatible and PCI Express Enhanced configuration
mechanisms and transaction rules.
30Datasheet, Volume 1
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