QNAP QXG-2G1T-I225 User Manual

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

specic 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

ooading 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 specic queues and cores, enables load-balancing the network trac ows to improve throughput in

multi-core platforms.

Other performance-enhancing features include IPv4 and IPv6 checksum ooad, TCP/UDP checksum ooad, extended Tx descriptors for more ooad capabilities, up to 256 KB TCP segmentation (TSO v2), 40 KB packet buer size, and 9.5 KB Jumbo Frame support.

Energy Ecient 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 trac is detected, the controller and the switch quickly come back to full power to handle the increased trac. EEE is supported for 2500BASE-T, 1000BASE-T

and 100BASE-TX.

Flexible Design Congurations

The I225 can be used for server system congurations

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 congurable 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 Denable Pins

Four Software Denable 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 congured to act as either standard

inputs, General-Purpose Interrupt (GPI) input or output pins, as well as the default value of all pins congured as outputs. One SDP is dedicated, and three are shared with the JTAG interface.

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