Product Features General — 10/100/1000 BASE-T IEEE 802.3 specification conformance — Integrated MDI interface termination resistors to reduce BOM costs — Supports up to 4 KB jumbo frames (full 1 duplex) — Supports carrier extension (half duplex) — Energy detect low power modes — Loopback modes for diagnostics — Fully integrated digital adaptive equalizers, echo cancellers, and crosstalk cancellers — Advanced digital baseline wander correction — Automatic MDI/MDIX crossover at all speeds of operation — Automatic polarity correction — IEEE 802.3u auto-negotiation conformance — MDC/MDIO management interface — Flexible filters in PHY to reduce MAC power — Shared NVM access through the MAC ® — MACSec hardware ready (802.1AE), Intel ® VPro, Intel Viiv and Virtualization support ® with appropriate Intel chipset(s) components — Smart speed operation for automatic speed reduction on faulty cable plants — PMA loopback capable (no echo cancel) ® 1. Refer to the latest Intel 82577 Specification Update for 2. The MAC is incorporated into the Intel® 5 Series Express Advanced cable diagnostics — TDR — Channel frequency response Extended configuration load sequence Power — Reduced power consumption during normal operation and power down modes — Integrated Intel® Auto Connect Battery Saver — Single pin LAN Disable for easier BIOS implementation Dual interconnect between the Media 2 Access Controller (MAC) and Physical Layer (PHY): — PCIe-based interface for active state operation (S0 state) — SMBus for host and management traffic (Sx low power state) Technology — 48-pin package, 6 x 6 mm with a 0.4 mm lead pitch and an Exposed Pad* for ground — Three configurable LED outputs — Flexible power configuration: use either the ® Intel 5 Series Express Chipset 1.05 Vdc shared voltage rail or the fully integrated 82577 1.0 Vdc linear regulation more details. Chipset. February 2012 Revision 2.5 INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS OTHERWISE AGREED IN WRITING BY INTEL, THE INTEL PRODUCTS ARE NOT DESIGNED NOR INTENDED FOR ANY APPLICATION IN WHICH THE FAILURE OF THE INTEL PRODUCT COULD CREATE A SITUATION WHERE PERSONAL INJURY OR DEATH MAY OCCUR. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The information here is subject to change without notice. Do not finalize a design with this information. The products Read the full Intel® 82577 GbE PHY Datasheet.