General Description
The Realtek RTL8111E-VL-CG 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 RTL8111E 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.
The RTL8111E supports the PCI Express 1.1 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. The RTL8111E features embedded One-Time-Programmable (OTP) memory to replace the external EEPROM (93C46/93C56/93C66).
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 MSI (Message Signaled Interrupt) and MSI-X are also supported.
In addition to the ACPI feature, remote wake-up (including AMD Magic Packet 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 RTL8111E.

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 v1
   and Large send v2) support
■ Supports Full Duplex flow control
   (IEEE 802.3x)
■ Supports jumbo frame to 9K bytes
■ 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
■ Supports IEEE 802.3az Draft 3.0 (EEE)
■ Embedded OTP memory can replace the
   external EEPROM
■ 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 quad core Receive-Side Scaling
   (RSS)
■ Supports Protocol Offload (ARP & NS)
■ Supports Customized LEDs
■ Supports 1-Lane 2.5Gbps PCI Express Bus
■ Supports hardware ECC (Error Correction
   Code) function
■ Supports hardware CRC (Cyclic
   Redundancy Check) function
■ 48-pin QFN ‘Green’ package

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