82544EI Datasheet, PDF (5/52 Pages) Intel Corporation – Gigabit Ethernet Controller

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82544EI Gigabit Ethernet Controller Networking Silicon Datasheet
Overview
The 82544EI Gigabit Ethernet Controller is an integrated third-generation Ethernet LAN
component capable of providing 1000, 100, and 10 Mbps data rates. It is a single-chip device,
containing both the MAC and PHY layer functions, and optimized for LAN on Motherboard
(LOM) designs, enterprise networking, and Internet appliances that use the Peripheral Component
Interconnect (PCI) and PCI-X bus backplanes.
The 82544EI utilizes a 32/64 bit, 33/66 MHz direct interface to the PCI bus, compliant with the
PCI Local Bus Specification, Revision 2.2. It also supports the emerging PCI-X extension to the
PCI Local Bus, Revision 1.0a. The controller interfaces with the host processor through on-chip
command and status registers and a shared host memory area, which is set up during initialization.
The 82544EI Gigabit Ethernet Controller provides a highly optimized architecture to deliver high
performance and PCI/PCI-X bus efficiency. Its hardware, acceleration features enable offloading
of various tasks, such as TCP/UDP/ IP checksum calculations and TCP segmentation, from the
host processor. The 82544EI device accommodates highly-configurable Ethernet designs, which
require minimal CPU overhead from interrupts and register accesses.
The physical layer circuitry provides an IEEE 802.3 Ethernet interface for 1000BASE-T,
100BASE-TX and 10BASE-T applications. With the addition of an appropriate serializer/
deserializer (SERDES), the 82544EI controller also provides an Ethernet interface for 1000BASE-
SX or 1000BASE-LX applications.
The 82544EI Gigabit Ethernet Controller is packaged in a 27 mm x 27 mm, 416-ball grid array.
Scope
This document contains datasheet specifications for the 82544EI Gigabit Ethernet Controller
including signal descriptions, DC and AC parameters, packaging data, and pinout information.
Reference Documents
This document assumes that the designer is acquainted with high-speed design and board layout
techniques. The following documents provide additional information:
• 8254x Family of Gigabit Ethernet Controllers Software Developer’s Manual, Intel
Corporation.
• PCI Local Bus Specification, Revision 2.2, PCI Special Interest Group.
• PCI-X Specification, Revision 1.0a, PCI Special Interest Group.
• PCI Bus Power Management Interface Specification, Rev. 1.1, PCI Special Interest Group.
• IEEE Standard 802.3, 1996 Edition, Institute of Electrical and Electronics Engineers (IEEE).
• IEEE Standard 802.3u, 1995 Edition, Institute of Electrical and Electronics Engineers (IEEE).
Datasheet
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