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 specific 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 offloading 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 filtering, ordering, and directing of packets to specific queues and cores, enables load-balancing the network traffic flows to improve throughput in multi-core platforms.
Other performance-enhancing features include IPv4 and IPv6 checksum offload, TCP/UDP checksum offload, extended Tx descriptors for more offload capabilities, up to 256 KB TCP segmentation (TSO v2), 40 KB packet buffer size, and 9.5 KB Jumbo Frame support.
Other Advanced Features
Flexible Filters
Supports a total of 32 individually configurable flexible filters. 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 flash 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 Definable Pins
Four Software Definable 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 configured to act as either standard inputs, General-Purpose Interrupt (GPI) input or output pins, as well as the default value of all pins configured as outputs. One SDP is dedicated, and three are shared with the JTAG interface.
Energy Efficient 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 traffic is detected, the controller and the switch quickly come back to full power to handle the increased traffic. EEE is supported for 2500BASE-T, 1000BASE-T and 100BASE-TX.
Flexible Design Configurations
The I225 can be used for server system configurations 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.
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