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RTL8111

INTEGRATED GIGABIT ETHERNET CONTROLLER FOR PCI EXPRESS™ APPLICATIONS

Realtek Semiconductor 

RTL8111

Datasheet

1. General Description

The Realtek RTL8111 Gigabit Ethernet controller combines a triple-speed IEEE 802.3 compliant Media

Access Controller (MAC) with a triple-speed Ethernet transceiver, PCI Express bus controller, and

embedded memory. With state-of-the-art DSP technology and mixed-mode signal technology, they offer

high-speed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable. Functions such as

Crossover Detection & Auto-Correction, polarity correction, adaptive equalization, cross-talk cancellation,

echo cancellation, timing recovery, and error correction are implemented to provide robust transmission

and reception capability at high speeds.

The device supports the PCI Express 1.0a bus interface for host communications with power management

and is compliant with the IEEE 802.3u specification for 10/100Mbps Ethernet and the IEEE 802.3ab

specification for 1000Mbps Ethernet. It also supports an auxiliary power auto-detect function, and will

auto-configure related bits of the PCI power management registers in PCI configuration space.

Advanced Configuration Power management Interface (ACPI)--power management for modern operating

systems that are capable of Operating System-directed Power Management (OSPM)—is also supported to

achieve the most efficient power management possible. PCI Message Signaled Interrupt (MSI) is also

supported.

In addition to the ACPI feature, remote wake-up (including AMD Magic Packet™, Re-LinkOk, and

Microsoft® Wake-up frame) is supported in both ACPI and APM (Advanced Power Management)

environments. To support WOL from a deep power down state (e.g., D3cold, i.e. main power is off and

only auxiliary exists), the auxiliary power source must be able to provide the needed power for the

RTL8111.

The RTL8111 is fully compliant with Microsoft® NDIS5 (IP, TCP, UDP) Checksum and Segmentation

Task-offload features, and supports IEEE 802 IP Layer 2 priority encoding and 802.1Q Virtual bridged

Local Area Network (VLAN). The above features contribute to lowering CPU utilization, especially

benefiting performance when in operation on a network server.

The device features next-generation PCI Express interconnect technology. PCI Express is a

high-bandwidth, low pin count, serial, interconnect technology that offers significant improvements in

performance over conventional PCI and also maintains software compatibility with existing PCI

infrastructure.

The RTL8111 is suitable for multiple market segments and emerging applications, such as desktop, mobile,

workstation, server, communications platforms, and embedded applications.

Integrated Gigabit Ethernet Controller for PCI Express 1

Track ID: JATR-1076-21 Rev. 1.2

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