82574L Datasheet, PDF (2/4 Pages) Intel Corporation – Low-Power, Small-Footprint, Single-Port Gigabit Network Connectivity with Advanced Performance Features

Architected for Small-Footprint,
Low-Power Designs
The Intel 82574L/IT Gigabit Ethernet Controllers are ideal for
GbE implementations on small form-factor Embedded designs
as well as Client and Server LAN on Motherboard (LOM) config-
urations. This very small 9mm x 9mm, 64-pin, QFN (Quad Flatpack
No-lead) silicon package provides a 40% reduction in total
footprint over the previous generation. The Intel 82574L/IT
Gigabit Ethernet Controllers consume less than 710mW in GbE
mode and less than 300mW in 10/100 mode. The robust design
also incorporates optional internal voltage regulation which
can reduce the number of voltage supplies required from the
platform to power core and I/O functions. Support of D0 and D3
power states is provided as well as Smart power-down at S0 no
link and Sx no link. Support of PCIe power management wake up
and Advanced power management (APM) wake up using special
packets is provided as well as LAN disable function.
Filled with Performance
Optimization Capabilities
The Intel 82574L/IT Gigabit Ethernet Controllers contain
two transmit and two receive queues for the single port. The
controller efficiently manages packets with minimum latency
by combining parallel and pipelined logic architectures optimized
for these independent transmit and receive queues. These
queues, combined with Receive Side Scaling (RSS) and Message
Signal Interrupt Extension (MSI-X) support, provide a toolset
for optimizing the performance on multi-core CPU designs.
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),
header splitting, 40 KB packet buffer size, and 9018 Byte
Jumbo Frame support.
Containing On-Board Side-Band
Interfaces for Manageability
The Intel 82574L/IT Gigabit Ethernet Controllers contain an
SMBus and DMTF-defined Network Controller Sideband Interface
(NC-SI) for manageability. Ethernet traffic is forwarded from the
network to the baseboard management controller (BMC) and
vice versa using the selected sideband interface implementation.
SMBus provides a legacy low-speed (100 KHz-400 KHz) serial
bus to pass network traffic and also enables the BMC to configure
the Controller’s filters and management-related capabilities. NC-SI
is an Ethernet manageability protocol which is easy to implement
and offers a very fast data rate (100 Mb/s, full-duplex) interface
suitable for all types of management traffic.
Packaged in an Environmentally
Friendly Design
The Intel 82574L/IT Gigabit Ethernet Controllers are completely
lead-free and halogen-free in their silicon and package design to
reduce the potential for environmental impact.
Features
PCI Express* Features
PCIe* x1 interface
PCIe v.1.1 (2.5 GT/s)
PCIe* advanced extensions
Low Power
<750mW S0-Typ (state) 1000Base-T Active 90˚ C (mode) and
<300mW S0-Typ (state) 100Base-T Active (mode)
Smart power down at S0 no link/Sx no link
LAN disable function
Full wake-up support: APM (formerly Wake on LAN), ACPI, and
Magic Packet* wake-up enable with unique MAC address
ACPI register set and power down functionality supporting
D0 and D3 states
Benefits
• High-bandwidth density per pin
• Less-congested board routing
• PCI-SIG conformance and standards interoperability
• Supports GbE at wire speed
• Extended error reporting and serial number for desired usage modes
• Low power consumption
• Power management
• Power management
• Power management
• Power management