Introduction
The 82567 is a single port GbE Physical Layer Transceiver (PHY) that connects to its Media Access Controller (MAC) through a dedicated interconnect. The 82567 is based on Intels GbE PHY technology, and supports operation at data rates of 10/100/1000 Mb/s. The physical layer circuitry provides a standard IEEE 802.3 Ethernet interface for 10BASE-T, 100BASE-TX, and 1000BASE-T applications (802.3, 802.3u, and 802.3ab).

Product Features
■ Reduced power consumption during normal operation and power down modes
■ IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX, and 10BASE-T applications (802.3, 802.3u, and 802.3ab) conformance
■ Supports up to 9 kB jumbo frames (full duplex)
■ Supports carrier extension (half duplex)
■ Auto-negotiation with support for next page
■ Smart speed operation, for automatic speed reduction on faulty cable plants
■ Automatic MDI crossover capable
■ PMA loopback capable (No echo cancel)
■ Advanced power management:
   — Low power link up
   — Auto Connect Battery Saver - link disconnect
■ Advanced cable diagnostics:
   — TDR
   — Channel frequency response
■ Extended configuration load sequence
■ Automatic resolution of FDX/HDX mismatch in 10/100 forced configurations
■ Dual interconnect between MAC and PHY:
   — LCI for 10/100 Mb/s operation control traffic
   — GLCI for 1000 Mb/s operation
■ Three LED outputs
■ Multiple voltage regulation modes:
   — External voltage regulation
   — Fully integrated linear regulator (nominal 1.05 V, programmable)
   — Discrete linear voltage regulator (nominal 1.8 V-1.9 V)
■ Supported ICH Integrated MAC Features:
   — Linksec (ICH10 only)
   — Manageability: vPro Compatible
   — Performance:
      • RSS Support
      • Checksum offload