EP80579 Datasheet, PDF (1341/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
37.0 Gigabit Ethernet Controller
37.1
Note:
Note:
37.1.1
37.1.1.1
37.1.1.2
37.1.1.3
Overview
The three Gigabit Ethernet controllersoff load various tasks from the IA-32 core to
improve performance. This off load is often times referred to “Network Interface Card”
or NIC functions. The Gigabit Ethernet controller is based on an Intel fourth generation
Gigabit MAC to provide a standard IEEE 802.3 Ethernet interface for 1000BASE-T,
100BASE-TX, and 10BASE-T applications. The controller is capable of transmitting and
receiving data rates of 10/100/1000 Mbps. The Convergence and PMD Sublayer
communication of the Physical Layer are implemented in MII/GMII (internally) and
RMII/RGMII (externally).
The RGMII, and RMII, while not natively supported in the Gigabit Ethernet controller
are supported by protocol translators between the Gigabit Ethernet controller and the
pins.
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”.
Terminology and Conventions
Register and Bit References
This document refers to device register names with all capital letters. To refer to a
specific bit in a register the convention REGISTER.BIT is used. For example, CTRL.BEM
refers to the Big Endian Mode bit in the Device Control Register (CTRL).
Byte and Bit Designations
This document uses “B” to abbreviate quantities of bytes, i.e. a 4KB represents 4096
bytes. Similarly, “b” is used to represent quantities of bits, i.e. 100Mbps represents 100
Megabits per second.
Numbering
All numbers are in decimal unless otherwise indicated. Hexadecimal numbers will be
preceded by a 0x or followed by an h. If not clear from the context, binary numbers will
be followed by a b or (b). Single bits are generally given as simply 0 or 1, since the
value is identical in binary or decimal.
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1341