intel? ethernet controller I211-AT low-power, small-footprint, single-port gigabit network connectivity with advanced performance features. intel? ethernet controller I211-AT overview the intel? ethernet controller I211-AT pro - vides an ideal gbe solution for customers looking for a full-featured gigabit ethernet media access control (mac) and physical- layer (phy) solution. with support for ad - vanced features such as 802.3az energy effcient ethernet (eee), 802.1as precision time stamping, ecc packet buffers and integrated non-volatile memory, the intel? I211-AT ethernet controller provides an ideal gbe solution for desktop, consumer electronics, and other small form-factor embedded applications. 10/100/1000 pci-express* (pcie) x1 connectivity the intel? ethernet controller I211-AT uses a pcie v2.1 one lane (x1) interface operating at 2.5 gt/s. the intel? ethernet controller I211-AT provides fully inte - grated gbe mac/phy capabilities that can be confgured for either 1000 mb/s or 10/100 mb/s modes of operation. filled with performance optimization capabilities the intel? ethernet controller I211-AT contains two transmit and two receive queues for the single port. these queues offer error correcting memory (ecc) pro - tection for improved data reliability. the controller effciently manages packets with minimum latency by combining paral - lel and pipelined logic architectures opti - mized for these independent transmit and receive queues. these queues, combined with receive side scaling (rss) and mes - sage signal interrupt extension (msi-x) support, provide a toolset for optimizing key features ? one-time programmable integrated non-volatile memory and integrated switching voltage regulators for simplified board design and cost reduction ? innovative power management features includ - ing energy efficient ethernet (eee) and dma coalescing for increased efficiency and reduced power consumption ? supports hardware-based time stamping of ieee 1588 and 802.1as packets enabling high- preci - sion time synchronization over ethernet ? extended lifecycle support protects system in - vestment by providing 7-year manufacturing availability for customers ? ideal for consumer compute devices and other small form-factor electronics ? low-halogen 1 , high-performance, low-power, small package, pci express* 10/100/1000 ethernet connection main interface options ? mdi (copper) standard ieee 802.3 ethernet inter - face for 1000base-t, 100base-tx, 10base-t connections (ieee 802.3, 802.3u, 802.3ab) pcie* interface ? pci express* v 2.1 with 2.5 gt/s support for x1 link width product brief intel? ethernet controller I211-AT network connectivity
energy efficient ethernet (eee) the intel? ethernet controller I211-AT sup - ports the ieee 802.3az eee standard so that during periods of low network activ - ity, 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 reduces power to approximately 50% of its normal operating power-saving power on both the network and the switch ports. when increased traffc is detected, the controller and the switch quickly come back to full power to handle the increased traffc. eee is supported for both 1000base-t and 100base-tx. the intel? ethernet controller I211-AT has excellent thermal characteristics. the in - tel? ethernet controller I211-AT supports commercial temperature ranges of 0 c to 70 c and operates at less than 730 mw. flexible design configurations with its small size, reduced power control circuitry, and integrated nvm capabil - ity, this controller can be used for small form-factor embedded designs as well as consumer devices. packaged in an environmentally friendly design the intel? ethernet controller I211-AT is low halogen and completely lead-free in its silicon and package design to reduce the potential for environmental impact. the performance on multi-core proces - sor designs. advanced interrupt-handling features to manage multiple interrupts simultaneously, combined with intelligent fltering, ordering, and directing of packets to specifc queues and cores, enables load- balancing the network traffc fows to im - prove throughput in multi-core platforms. other performance-enhancing features include ipv4 and ipv6 checksum offoad, tcp/udp checksum offoad, extended tx descriptors for more offoad capabilities, up to 256 kb tcp segmentation (tso v2), header splitting, 40 kb packet buffer size, and 9.5 kb jumbo frame support. advanced features ieee 1588/802.1as time stamping the intel? ethernet controller I211-AT sup - ports hardware-based ieee 1588/802.1as for precision time synchronization to enable high-precision timesynchronization over the ethernet. software definable pins four software defnable pins (gpios) enable additional design customization for embedded platforms. sdps can be used for ieee 1588 auxiliary device connec - tions, enable/disable of the device, and for other miscellaneous hardware or soft - ware-control purposes. these pins can be individually confgured to act as either standard inputs, general-purpose inter - rupt (gpi) inputs or output pins, as well as the default value of all pins confgured as outputs. 2
external interfaces pci express* interface v2.1 ? 2.5 gt/s support for x1 width (lane) network interfaces ? mdi (copper) standard ieee 802.3 ethernet interface for 1000base-t, 100base-tx, and 10base-t ap- plications (802.3, 802.3u, and 802.3ab) bom cost reduction feature benefits on-chip integrated switching voltage regulator (isvr) ? removes need for a higher cost on-board voltage regulator ethernet features ieee* 802.3* auto-negotiaton ? automatic link configuration for speed duplex and flow control 1 gb/s ethernet ieee 802.3, 802.3u, 802.3ab phy specifications compliant ? robust operation over installed base of cat5 twisted-pair cabling integrated phy for 10/100/1000 mb/s for multi- speed, full, and half-duplex ? smaller footprint and lower power dissipation compared to multiple discreet mac and phys ieee 802.3x and ieee 802.3z compliant flow control support with software-controllable rx thresholds and tx pause frames ? local control of network congestion levels automatic cross-over detection function (mdi/ mdi-x) ? frame loss reduced from receive overruns ieee 1588 protocol and 802.1as implementation ? the phy automatically detects which application is being used and configures itself accordingly ? time-stamping and synchronization of time sensitive applications ? distribute common time to media devices power management and effciency <730 mw s0-max (state) 1000base-t active 70 o c ? controller is designed for low power consumption ieee 802.3az - energy efficient ethernet (eee) ? power consumption by the phy is reduced by approximately 50%; link transitions to low power idle (lpi) state as defined in the ieee 802.3az (eee) standard 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 lan disable function ? option to disable the lan port and/or pcie function. full wake up support: ? advanced power management (apm) supportC [formerly wake on lan] ? advanced configuration and power interface (acpi) specification v2.0c ? magic packet* wake-up enable with unique mac address ? apm - designed to receive a broadcast or unicast packet with an explicit data pattern (magic pack) and assert a signal to wake up the system ? acpi - pcie power management based wake-up that can generate system wake-up events from a num- ber of sources acpi register set and power down functionality sup - porting d0 and d3 states ? power-managed speed control lowers link speed/power when highest link performance is not required mac power management controls ? power management controls in the mac /phy enable the device to enter a low-power state low power link up - link speed control ? enables a link to come up at the lowest possible speed in cases where power is more important than performance 3
stateless offoads and performance features tcp/udp, ipv4 checksum offloads (rx/ tx/ large- send) ? more offload capabilities and improved cpu usage ? checksum and segmentation capability extended to new standard packet type ipv6 support for ip/tcp and ip/udp receive check - sum offload ? improved cpu usage tx tcp segmentation offload (ipv4, ipv6) ? increased throughput and lower processor usage; compatible with large-send offload transmit segmentation offloading (tso) ? large tcp/udp i/o is segmented by to the device it to l2 packets according to the requested mss interrupt throttling control ? limits maximum interrupt rate and improves cpu usage legacy and message signal interrupt (msi) ? interrupt mapping. message signal interrupt extension (msi-x) ? dynamic allocation of up to 5 vectors per port intelligent interrupt generation ? enhanced software device driver performance receive side scaling (rss) for windows* scalable i/o for linux environments (ipv4, ipv6, tcp/ udp) ? up to two queues per port ? improves the system performance related to handling of network data on multiprocessor systems support for packets up to 9.5 kb ( jumbo frames) ? enables faster and more accurate throughput of data low latency interrupts ? based on the sensitivity of the incoming data, the controller can bypass the automatic moderation of time intervals between the interrupts header/packet data split in receive ? helps the driver to focus on the relevant part of the packet without the need to parse it pcie v2.1 tlp processing hint requester ? provides hints on a per transaction basis to facilitate optimized processing of descriptor ring management hardware for transmit and receive ? optimized descriptor fetch and write-back for efficient system memory and pcie bandwidth usage remote boot options preboot execution environment (pxe) ? enables system boot up via the efi (32 bit and 64 bit) product codes i211- at mm# brand name description media forecast name 92514 4 intel? ethernet controller I211-AT 1000base-t commercial temp tape and reel w g i 211- at 925145 intel? ethernet controller I211-AT 1000base-t commercial temp tray w g i 211- at 4
for more information on the intel? ethernet controller I211-AT , visit www.intel.com/go/ethernet customer support intel? customer support services offers a broad selection of programs including phone support and warranty service. for more infor - mation, contact us at support.intel.com/support/go/network/ (service and availability may vary by country.) for product information to speak to a customer service representative regarding intel products, please call 1-800-538-3373 (u.s. and canada) or visit support.intel.com/support/go/network/contact.htm for the telephone number in your area. for additional product information on intel networking connectivity products, visit www.intel.com/go/ethernet 1 low halogen--applies only to brominated and chlorinated fame retardants (bfrs/cfrs) and pvc in the fnal product. intel components as well as purchased components on the fnished assembly meet js-709a requirements, and the pcb/ substrate meet iec 61249-2-21 requirements. the replacement of halogenated fame retardants and/or pvc may not be better for the environment. information in this document is provided in connection with intel products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. except as provided in intels terms and conditions of sale for such products, intel assumes no liability whatsoever and intel disclaims any express or implied war - ranty, relating to sale and/or use of intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. a mission critical application is any application in which failure of the intel product could result, directly or indirectly, in personal injury or death. should you purchase or use intels products for any such mission critical application, you shall indemnify and hold intel and its subsidiaries, subcontractors and affiliates, and the directors, officers, and employees of each, harmless against all claims costs, damages, and expenses andreasonable attorneys fees arising out of, directly or indirectly, any claim of product liability, personal injury, or death arising in any way out of such mission critical application, whether or not intel or its subcontractor was negligent in the design, manufacture, or warning of the intel product or any of its parts. intel may make changes to specifcations and product descriptions at any time, without notice. designers must not rely on the absence or characteristics of any features or instructions marked reserved or undefned. intel reserves these for future defnition and shall have no responsibility whatsoever for conficts or incompatibilities arising from future changes to them. the information here is subject to change without notice. do not fnalize a design with this information. the products described in this document may contain design defects or errors known as errata which may cause the product to deviate from published specifcations. current characterized errata are available on request. contact your local intel sales offce or your distributor to obtain the latest specifcations and before placing your product order. copies of documents which have an order number and are referenced in this document, or other intel literature, may be obtained by calling 1-800-548-4725, or go to: http://www.intel.com/design/literature.htm intel and the intel logo are registered trademarks of intel corporation in the u.s. and other countries. copyright ? 2012 intel corporation. all rights reserved. *other names and brands may be claimed as the property of others. printed in usa 1012/cw/su/pdf please recycle 328078-001us
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