Product Brief
Intel 82541PI Gigabit
Ethernet Controller
®
High-performance,
power-optimized Gigabit
connection for mobile and
desktop PCI-based designs
The Intelligent Way to Connect
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Longer battery life through reduced power
usage and enhanced power management
System health monitoring and authenticated
remote power control with ASF 2.0
Design flexibility with Intel
®
SingleDriver
TM
technology and footprint-compatibility
with Intel
®
PRO 10/100 and
10/100/1000 Connections
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The Intel 82541PI combines Intel’s fifth-
generation Gigabit MAC design with fully
integrated PHY to provide a standard IEEE
802.3 Ethernet interface for 1000BASE-T,
100BASE-TX and 10BASE-T applications.
In addition, the controller provides a direct
Peripheral Component (PCI) Interconnect
designed to be compliant with the PCI 2.3
bus up to 66MHz. Packaged in a 15x15mm
PBGA, the Intel 82541PI Gigabit Ethernet
Controller is footprint-compatible with the
Intel
®
82551QM Fast Ethernet Controller
and Intel
®
82562EX and 82562EZ devices.
Footprint-compatibility, plus Intel SingleDriver
technology allow for a flexible Gigabit Ethernet
or Fast Ethernet implementation on the same
motherboard layout.
With built-in power management capabilities
and enhanced manageability, the Intel 82541PI
Gigabit Ethernet Controller can help extend
battery life for mobile PC users, giving your
designs a competitive edge for tomorrow’s
mobile PCs.
The Intel
®
82541PI Gigabit Ethernet Controller
provides optimized Gigabit networking for
power-sensitive designs, such as mobile PC
applications. This highly efficient controller, with
enhanced power management, consumes less
than 1.0W of power at Gigabit speeds. When
no signal is detected on the wire, the controller
reduces power consumption by switching to
100 or 10 and powering down the physical-
layer circuitry (PHY). When a signal is detected,
the controller automatically negotiates the con-
nection to Gigabit, if available. To reduce the
battery drain, the controller automatically
switches the link to 100Mbps operation when
on battery power.
The Intel 82541PI Gigabit Ethernet Controller
enhances secure manageability and system
health monitoring over the LAN with support
for IPMI 1.5, ASF 2.0 and Advanced Pass
Through. For IPMI designs, the on-board SMBus
port can pass management traffic through the
controller to a management device, such as
a Baseboard Management Controller (BMC).
Alternatively, ASF 2.0 provides manageability
without the cost burden of external hardware
via standardized interfaces. ASF 2.0 circuitry
provides advanced system health and security
alerting plus authenticated remote power
control capabilities.
Intel in
Communications
Product Brief
Intel
®
82541PI Gigabit Ethernet Controller
Features
PCI Bus Features
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Benefits
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PCI revision 2.3, 32-bit, 33/66MHz
CLKRUN# Signal
Application flexibility in LOM or embedded use
PCI clock suspension for low-power mobile design
Gigabit MAC/PHY Advanced Features
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64KB configurable RX and TX packet FIFO
IEEE 802.3x-compliant flow-control support with software-controllable thresholds
Programmable host memory receive buffers (256B to 16KB)
IEEE 802.3ab Auto-Negotiation
State-of-the-art DSP/analog architecture
PHY detects polarity, MDI-X, 2 pair vs. 4 pair cables
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FIFO size tunable to the application
Reduced frame loss due to receive FIFO overrun
Efficient usage of system resources
Automatic link configuration including speed, duplex, and flow control
Implements digital adaptive equalization, echo, cross-talk and baseline wander cancellation
Easier network installation and maintenance
Host Offloading Features
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TCP segmentation (LSO), TCP and UDP checksum off-loading
IEEE 802.1Q VLAN support with VLAN tag insertion and stripping and packet
filtering for up to 4096 VLAN tags
Jumbo frame support up to 16KB
Interrupt moderation controls
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Increased throughput and lower CPU utilization. Compatible with large send offload
on RX and TX feature found in Windows* 2000 and Windows* XP
Enables IT staff to easily create multiple virtual LAN segments
High throughput for large data transfers on networks supporting jumbo frames
Reduces the number of interrupts generated by receive and transmit operations
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Manageability Features
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On-chip SMBus 2.0 port
ASF 1.0 and 2.0
Compliance with PCI Power Management v1.1/ACPI v2.0
Wake on LAN* (WoL) support
Automatic link speed switching from 1000Mb/s down to 10 or 100Mb/s in standby
Smart Power Down mode when no signal is detected on the wire
Power Save mode switches link speed from 1000Mb/s down to 10 or 100Mb/s
when on battery power
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Enables IPMI and ASF implementations
Provides advanced alerting and remote-control capabilities with industry-standard interfaces
PCI power management capability requirements for PC and embedded applications
Packet recognition and wakeup for network adapter and LOM applications
without software configuration
Supports power-down states without software assistance
Low power in standby states
Enables very low-power mobile or battery
Manages power consumption based on power source
Longer battery life for battery-powered implementations
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Additional Device Features
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Four programmable LED outputs
On-chip power regulator control circuitry
BIOS LAN Disable Pin
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Customizable indications for link speed, activity, duplex, collisions, and port ID on each port
Simplified low-cost power supply design
Enables low-power LAN disable for LOM applications
Characteristics
Electrical
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Typical targeted power dissipation
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1.0W at D0 1000Mbps
100mW at D3 100Mbps
50mW at D3 wakeup disabled
Environmental
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Operating temperature
Storage temperature
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0°C to 70°C (maximum); does not require a heat sink or forced airflow
-65°C to 140°C
Physical
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Package
Footprint-compatible with Intel
®
82540EM, 82540EP, 82541EI and 82541GI
Gigabit Ethernet Controllers
Footprint-compatible with Intel
®
82551QM, 82562EZ and 82562EX Fast Ethernet Controllers
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196-pin PBGA, 1mm ball pitch, 15x15mm (simplifies LOM board designs)
Enables easy migration
Enables a Gigabit Ethernet or 10/100 LOM implementation on the same board
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Order Code
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GD82541PI
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. Intel products are not intended for use in medical, life saving, or life sustaining applications. Intel may make changes to specifications
and product descriptions at any time, without notice.
Copyright © 2004 Intel Corporation. All rights reserved.
Intel, the Intel logo and Intel SingleDriver are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
* Other names and brands may be claimed as the property of others.
Printed in USA.
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