Product Brief
Intel® Ethernet
Controller I225
PCI Express multi-gigabit Ethernet controller
supporting mobile, desktop, workstation,
value-server, or embedded space-constrained designs.
Key Features
• PCI Express 3.1 (5GT/s) x1 host
interface
• MDI (Copper) standard IEEE 802.3
Ethernet interface up to 2.5Gb/s¹
• Time Sensitive Networking (TSN)
capability support
• Innovative power management
features
• Support for Intel® Active Management
Technology on systems enabled with
Intel vPro® technology
Overview
This PCI Express controller with Base-T copper networking interface,
provides compact, single-port integrated multi-gigabit (up to 2.5G) MDI (Copper) standard IEEE 802.3 Ethernet interface for 2500BASE-T,
1000BASE-T, 100BASE-TX, 10BASE-TE connections (IEEE 802.3,
802.3u, 802.3ab).
The Intel® Ethernet Controller I225 is designed for use on any mobile,
desktop, workstation, value-server, or industrial designs that have critical
space constraints. The I225 can also support Intel vPro® technology on
specic Intel platforms and chipsets.
The Intel Ethernet Controller I225 also supports the latest time
sensitive networking (TSN) features, along with best in class power
management and Operating System Support.
Filled with Performance Optimization Capabilities
The Intel® Ethernet Connection I225 includes advanced
interrupt-handling features to reduce CPU overheard.
Other performance-enhancing features include
ooading TCP/UDP (for both IPv4 and IPv6) checksum
calculations and performing TCP segmentation.
Advanced features such as Jumbo Frame support for
extra-large packets and Receive Side Scaling (RSS) are
also supported. Additionally, I225 builds on prior
controller solutions to add Time Sensitive Networking
(TSN) features including IEEE 802.1Qbu, 802.3br,
802.1Qbv, 802.1AS-REV, 802.1p,Q, and 802.1Qav on
select operating systems.
These features support advanced time critical, and
synchronized applications prevalent in audio/video,
embedded, and industrial applications.
Advanced interrupt-handling features to manage
multiple interrupts simultaneously, combined with
intelligent ltering, ordering, and directing of packets
to specic queues and cores, enables load-balancing
the network trac ows to improve throughput in
multi-core platforms.
Other performance-enhancing features include IPv4
and IPv6 checksum ooad, TCP/UDP checksum ooad,
extended Tx descriptors for more ooad capabilities,
up to 256 KB TCP segmentation (TSO v2), 40 KB packet
buer size, and 9.5 KB Jumbo Frame support.
Energy Ecient Ethernet (EEE)
Supports the IEEE 802.3az EEE standard so that during
periods of low network activity, EEE reduces the power
consumption of an Ethernet connection by negotiating
with the switch port to transition to a low power idle
(LPI) state.
This capability reduces power dramatically, saving power
on both the network and the switch ports. When
increased trac is detected, the controller and the switch
quickly come back to full power to handle the increased
trac. EEE is supported for 2500BASE-T, 1000BASE-T
and 100BASE-TX.
Flexible Design Congurations
The I225 can be used for server system congurations
such as rack-mounted or pedestal servers, in an add-on
NIC, in LAN on Motherboard (LOM) designs.
For customers needing extended temperature ranges,
the Intel® Ethernet Controller I225-V/LM supports
commercial temperature ranges of 0 °C to 70 °C.
Manageability Support
The Intel® Ethernet Controller I225 provides
Intel® Active Management Technology support
when connected to a system with Intel vPro
technology, directly as LAN on motherboard, or via a
Thunderbolt device.
Other Advanced Features
Flexible Filters
Supports a total of 32 individually congurable exible
lters. Filters can be used for wake-up or proxying when
in D3 state or for queueing when in D0 state.
Secure Flexible Firmware Architecture
Flexible Firmware Architecture with Secure NVM Update
protects the ash from external unauthorized software
programming. The Intel® Ethernet Controller I225 also
supports Dynamic Firmware Updating that enables
Firmware Updates without the need for a system reboot.
Software Denable Pins
Four Software Denable Pins (SDPs) enable additional
design customization for embedded platforms. SDPs can
be used for IEEE 1588 auxiliary device connections, to
enable/disable the device, and for other miscellaneous
hardware or software-control purposes. These pins
can be individually congured to act as either standard
inputs, General-Purpose Interrupt (GPI) input or output
pins, as well as the default value of all pins congured
as outputs. One SDP is dedicated, and three are shared
with the JTAG interface.
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2
FEATURES DESCRIPTION
EXTERNAL INTERFACES
PCI Express 3.1 • 5GT/s Support for x1 width (Lane).
Network Interfaces • Integrated MAC + BASE-T PHY.
MDI Lane Swap • A simple hardware strapping option which allows the ability to swap the MDI pairs order between ABCD<->DCBA.
• MDI (Copper) standard IEEE 802.3 Ethernet interface for 2500BASE-T, 1000BASE-T, 100BASE-TX, and 10BASE-TE
applications (802.3, 802.3u, 802.3bz, and 802.3ab).
This reduces routing complexity and risk.
BOM COST Optimization
On-chip integrated Switched Voltage Regulator (iSVR) • Removes need for a higher cost on-board voltage regulator.
ETHERNET FEATURES
IEEE 802.3 auto-negotiator • Automatic link conguration for speed duplex and ow control.
IEEE 802.3x and IEEE 802.3z compliant ow control
support with software-controllable Rx thresholds and
Tx pause frames
Automatic cross-over detection function (MDI/ MDI-X) • Frame loss reduced from receive overruns.
IEEE 1588 protocol and 802.1AS implementation • Time-stamping and synchronization of time sensitive applications.
Supporting Time Sensitive Networking (TSN)
Capabilities
• Local control of network congestion levels.
• Distribute common time to media devices.
• IEEE 802.1Qbu, 802.3br, 802.1Qbv, 802.1AS-REV, 802.1p,Q, and 802.1Qav.
• Supports Time-based transmission.
• Any Tx and Rx queues can be used for scheduled trac or best eort trac.
• Supports Forwarding and Queuing Enhancements for Time-Sensitive Streams.
POWER MANAGEMENT FEATURES
Controller is designed for low power consumption • 2W S0-Max 2500BASE-T Active 70 °C (Intel® Ethernet Controller I225-V/LM).
IEEE 802.3az - Energy Ecient Ethernet (EEE) • Power consumption by the PHY is reduced; link transitions to low power Idle (LPI) state as dened in the IEEE
Smart Power Down (SPD) at S0 no link/Sx no link • PHY powers down circuits and clocks that are not required for detection of link activity.
Active State Power Management (ASPM) • Optionality Compliance bit enables ASPM or runs ASPM compliance tests to support entry to L0s.
Full wake up support • Advanced Power Management (APM) Support–[formerly Wake on LAN.
ACPI register set and power down functionality
supporting D0 and D3 states
MAC Power Management controls • Power management controls in the MAC /PHY enable the device to enter a low-power state.
Power Management Protocol Ooad (Proxying) • Enables the system to remain at low system power state while the NIC handles pre-dened ping or keep
Latency Tolerance Reporting (LTR) • Reports service latency requirements for memory reads and writes to the Root Complex.
• 1.3W S0-Typical 2500BASE-T Active 25 °C (Intel® Ethernet Controller I225-V/LM).
• 950W S0-Typical 1000BASE-T Active 25 °C (Intel® Ethernet Controller I225-V/LM).
• <5mW Disconnected (Intel® Ethernet Controller I225-V/LM).
802.3az (EEE) standard.
- APM: Designed to receive a broadcast or unicast packet with an explicit data pattern (Magic Packet) and assert a
signal to wake up the system.
• Advanced Conguration and Power Interface (ACPI) specication v2.0c.
- ACPI: PCIe power management based wake-up that can generate system wake-up events from a number
of sources.
• Power-managed speed control lowers link speed/power when highest link performance is not required.
alive messages.
STATELESS OFFLOADS AND PERFORMANCE FEATURES
TCP/UDP, IPv4 checksum ooads (Rx/ Tx); • Ooading capabilities and improved CPU usage.
Transmit Segmentation Ooading (TSO) (IPv4, IPv6) • Increased throughput and lower processor usage.
Interrupt throttling control • Limits maximum interrupt rate and improves CPU usage.
Low-Latency Interrupts • Based on the sensitivity of the incoming data, the controller can bypass the automatic moderation of time intervals
Legacy and Message Signal Interrupt (MSI) • Interrupt mapping.
Message Signal Interrupt Extension (MSI-X) • Dynamic allocation of up to 5 vectors per port.
Receive Side Scaling (RSS) for Windows • Up to four queues per port.
Scalable I/O for Linux environments (IPv4, IPv6,
TCP/UDP)
Support for packets up to 9.5 KB (Jumbo Frames) • Enables faster and more accurate throughput of data.
PCIe v3.1 support • Includes additions to PCIe to support low power link states.
Descriptor ring management hardware for Transmit
and Receive
• Extended Tx descriptors.
• Checksum and segmentation capability extended to new standard packet type.
between the interrupts.
• Improves the system performance related to handling of network data on multiprocessor systems.
• Optimized descriptor fetch and write-back for ecient system memory and PCIe bandwidth usage.
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FEATURES DESCRIPTION
REMOTE BOOT OPTIONS
Preboot eXecution Environment (PXE) ash interface
support
Intel® Boot Agent software--Linux boot via PXE or
BOOTP, Windows Deployment Services, or UEFI
• Enables system boot up via the EFI (32 bit and 64 bit).
• Flash interface for PXE 2.1 option ROM.
• Enables networked computer to boot using a program code image supplied by a remote server.
• Complies with the Pre-boot eXecution Environment (PXE) Version 2.1 Specication.
MANAGEABILITY FEATURES
Intel® Active Management Technology • Supported on systems enabled with Intel vPro® technology
PRODUCT ORDER CODE
MM# BRAND NAME DESCRIPTION MEDIA FORECAST NAME
999JW1 Intel® Ethernet Controller I225LM Commercial and server version with long life supply, standard temperature (v1) Tape and reel KTI225LM
999JW0 Intel® Ethernet Controller I225LM Commercial and server version with long life supply, standard temperature (v1) Tray KTI225LM
999JW7 Intel® Ethernet Controller I225V Non-commercial version, standard temperature (v1) Tape and reel KTI225V
999JW5 Intel® Ethernet Controller I225V Non-commercial version, standard temperature (v1) Tray KTI225V
99A1TL Intel® Ethernet Controller I225LM Commercial and server version with long life supply, standard temperature (v2) Tape and reel KTI225LM
99A1T7 Intel® Ethernet Controller I225LM Commercial and server version with long life supply, standard temperature (v2) Tra y KTI225LM
99A1VF Intel® Ethernet Controller I225V Non-commercial version, standard temperature (v2) Tape and reel KTI225V
99A1V1 Intel® Ethernet Controller I225V Non-commercial version, standard temperature (v2) Tra y KTI225V
Customer Support
For customer support options in North America visit:
intel.com/content/www/us/en/support/contact-support.html
Warranty
Standard Intel limited warranty, one year. See Intel terms and
conditions of sale for more details.
¹ For the Intel Ethernet Con troller I225 – v1, 2.5GbE is available o n select routers/sw itches. Plea se see https://cdrdv2.intel.com/v1/dl/getContent/621661 for the list of k nown compati ble link part ners
and devices.
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Product Information
For information about Intel® Ethernet Products, visit:
intel.com/ethernetproducts
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