Intel® 82540EP Gigabit Ethernet Controller, 2.0: Datasheet
The Intel® 82540EP Gigabit Ethernet Controller is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. For desktop, workstation, and mobile PC Network designs with critical space constraints, the Intel® 82540EP allows for a Gigabit Ethernet implementation in a very small area that is footprint compatible with current generation 10/100 Mbps Fast Ethernet designs.
The Intel® 82540EP integrates Intel’s fourth generation gigabit MAC design with fully integrated, physical layer circuitry to provide a standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab). The controller is capable of transmitting and receiving data at rates of 1000 Mbps, 100 Mbps, or 10 Mbps. In addition to managing MAC and PHY layer functions, the controller provides a 32-bit wide direct Peripheral Component Interconnect (PCI) 2.2 compliant interface capable of operating at 33 or 66 MHz.
The 82540EP also incorporates the CLK_RUN# protocol and hardware-supported downshift capability to two- or three-pair 100 Mb/s operation. These features optimize mobile applications.
The Intel® 82540EP’s on-board System Management Bus (SMB) port enables network manageability implementations required by information technology personnel for remote control and alerting via the LAN. With SMB, management packets can be routed to or from a management processor. The SMB port enables industry standards, such as Intelligent Platform Management Interface (IPMI) and Alert Standard Forum (ASF), to be implemented using the 82540EP. In addition, on-chip ASF 1.0 circuitry provides alerting and remote control capabilities with standardized interfaces.
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