Introduction
The Intel® 82545GM Gigabit Ethernet Controller is a single, compact component with an integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions. The Intel® 82545GM enables Gigabit Ethernet implementations in a very small area and can be used for desktop and workstation PC network designs as well as backplane applications with critical space constraints.

Product Features
• PCI/PCI-X
    —PCI-X Revision 1.0a support for frequencies up to 133 MHz
    —Multi-function PCI device
    —PCI Revision 2.3 support for 32-bit wide or 64-bit wide interface at 33 MHz and 66 MHz
• MAC
    —IEEE 802.3x compliant flow control support with software controllable pause times and threshold values
    —Programmable host memory receive buffers (256 Bytes to 16 Kbytes) and cache line size (16 Bytes to 256 Bytes)
    —Wide, optimized internal data path architecture (128 bits)
    —64 Kbyte configurable Transmit and Receive FIFO buffers
    —Optimized descriptor fetching and writeback mechanisms
• PHY
    —Integrated PHY for 10/100/1000 Mbps full and half duplex operation
    —IEEE 802.3ab Auto-Negotiation support
    —IEEE 802.3ab PHY compliance and compatibility
    —PHY ability to automatically detect polarity and cable lengths and MDI versus MDI-X cable at all speeds
• Host Offloading
    —Transmit and receive IP, TCP and UDP checksum off-loading capabilities
    —Transmit TCP segmentation
    —IEEE 802.1q VLAN support with VLAN tag insertion, stripping and packet filtering for up to 4096 VLAN tags
    —Advanced packet filtering
• Manageability
    —Manageability features on both ports: SMB port, ASF 1.0, ACPI, Wake on LAN, and PXE
    —Compliance with PCI Power Management 1.1 and ACPI 2.0 register set compliant
• Four activity and link indication outputs that directly drive LEDs
• Lead-freea 364-pin Ball Grid Array (BGA). Devices that are lead-free are marked with a circled “e1” and have the product code: PCxxxxxx.