EP80579 Datasheet, PDF (1337/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
36.2.3
36.2.4
Note:
36.2.5
Host Off-Loading Features
The GbE controller provides the ability to off-load IP, TCP, and UDP checksum for
transmit, packet filtering, and hardware VLAN support. The functionality provided by
these features significantly reduce the IA processor utilization by shifting the burden of
the functions from the driver to the hardware.
• IPV4 checksum calculation
• TCP/UDP checksum calculation
• 16 KByte jumbo-frame support
• Interrupt coalescing (multiple packets per interrupt)
• TCP segmentation for transmits that off-loads packet segmentation and
encapsulation
• RMON statistics
• IPV6 support for IP/TCP and IP/UDP receive checksum off-load
• IP v6 wake-up filters
• IP v6 TCP segmentation
Interfaces
The GbE controller provides the following serial interfaces:
• RMII — 8-pin interface
• RGMII — 12-pin interface
• MDIO/MDC Interface
For information on PHY selection:
1. Go to http://www.intel.com/go/soc.
2. Select the "Technical Documentation" tab.
3. Search for "Ethernet PHY Selection Criteria for the Intel^® EP80579 Integrated
Processor product line”.
Power Management
Each controller supports the following Power Management related features:
• Power states of D0 & D3hot with optional D3cold support.
— D3cold support on GbE0 only.
• Wake On LAN.
Each GbE may be configured to generate a PME signal on the reception of a Magic
packet or a network wake-up packet. A combination of pre-defined and user
configurable filters are provided to support this functionality. The PME_N wake-up
signals from all GbE units are wired-OR together and brought out to a single external
pin. This pin should be externally wired to the PME_N pin of the ICH.
When transitioned to the D3hot state, the GbE controller internally performs clock-
gating on many of its blocks to reduce power.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1337