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RTL8111C-GR
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The Realtek RTL8111B-GR 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， the
RTL8111B-GR offers 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
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
RTL8111B-GR.
The RTL8111B-GR 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
IEEE 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 also features next-generation inter-connect PCI Express 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 RTL8111B-GR is suitable for multiple market segments and emerging applications， such as desktop，
mobile， workstation， server， communications platforms， and embedded applications
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naoh07
2018-07-20
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