General Description
The Realtek RTL8111C-GR/RTL8111C-VB-GR/RTL8111C-VC-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 RTL8111C offers high-speed transmission over CAT 5 UTP cable or CAT 3 UTP (10Mbps only) cable. Functions such as Crossover Detection and 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.

FEATUREs
■ Integrated 10/100/1000 transceiver
■ Auto-Negotiation with Next Page capability
■ Supports PCI Express™ 1.1
■ Supports pair swap/polarity/skew correction
■ Crossover Detection & Auto-Correction
■ Wake-on-LAN and remote wake-up support
■ Microsoft® NDIS5, NDIS6 Checksum Offload (IPv4, IPv6, TCP, UDP) and Segmentation Task-offload (Large send and Giant send) support
■ Supports Full Duplex flow control (IEEE 802.3x)
■ Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
■ Supports IEEE 802.1P Layer 2 Priority Encoding
■ Supports IEEE 802.1Q VLAN tagging
■ Serial EEPROM
■ Transmit/Receive on-chip buffer support
■ Supports power down/link down power saving
■ Built-in switching regulator
■ Supports PCI MSI (Message Signaled Interrupt) and MSI-X
■ Supports Receive-Side Scaling (RSS)
■ 64-pin QFN package (Green package)
■ Embeds an adaptive equalizer in PCI Express PHY (PCB traces can reach up to 40 inches)

System Applications
■ PCI Express™ Gigabit Ethernet on Motherboard, Notebook, or Embedded system