Marvell Alaska 88E3082/88E3083
Integrated 8-Port 10/100BASE-T Fast Ethernet Transceivers
PRODUCT OVERVIEW
The Marvell
®
Alaska
®
88E3082 and 88E3083 are third-generation Marvell DSP-based 8-port 10/100BASE-T Fast Ethernet
(FE) transceivers. They offer the industry’s lowest power consumption at only 150mW per port, resulting in higher port
density, lower cost FE switches. Additionally, the 88E3082 and 88E3083 integrate the industry’s most advanced FE
transceiver feature set, such as Marvell’s Virtual Cable Tester
®
(VCT™) technology for remote cable diagnostics and
support for very low power modes.
The Alaska 88E3082 and 88E3083 contain all of the active circuitry to convert data streams to and from eight Media Access
Controllers (MACs) and to and from the physical media. In addition, both devices incorporate IEEE 802.3u Auto-Negotiation
in support of both 100BASE-TX and 10BASE-T networks over twisted-pair cable in full-duplex or half-duplex mode.
To reduce the number of input/output (I/O) pins between the MAC and the Physical Layer (PHY), the 88E3082 supports the
Reduced Media Independent Interface (RMII), the Serial Media Independent Interface (SMII), and the source-synchronous
option of SMII (SSSMII). The SSSMII interface extends the allowed PCB trace distance between the PHY and the MAC, thereby
facilitating more robust, higher port density FE switch designs. The 88E3083 supports the SMII and SSSMII interfaces.
The 88E3082 also features a mode of operation supporting IEEE-compliant 100BASE-FX fiber-optic networks. The device
includes a PECL interface that is selectable on a per-port basis for 100BASE-FX applications. The 88E3083 supports
100BASE-FX fiber on a single port.
BLOCK DIAGRAM
Fig 1. 88E3082 (Single-Port) Functional Block Diagram
Fig 2. 88E3082/88E3083 System Diagram
Marvell Alaska 88E3082/88E3083
FEATURES
•
Eight independent IEEE 802.3 compliant 100BASE-TX and 10BASE-T ports
•
PECL interface supporting 100BASE-FX applications on a per port basis
(88E3082 only; 88E3083 supports one fiber port)
•
RMII, SMII, and SSSMII interfaces (RMII supported on 88E3082 only)
BENEFITS
•
Enable higher port density switch system design
•
Supports FE over fiber applications
•
Provides user configurable digital interfaces. SSSMII option extends the
distance between the PHY and SW/MAC chip on the PCB design
•
Yields higher port density and lower cost
•
Reduces system power
•
Enables remote cable diagnostics for fault detection
•
Simplifies and reduces the cost of networking installation
•
Supports applications that demand larger packet sizes
•
Enables a plug-and-play network system
•
Improves network reliability
•
Tolerates more cable mismatch and extends the receiving distance over 150
meters on standard CAT 5 cable
•
Eliminates cost of external LED latches and drivers
•
Allows for implementation of JTAG function facilitating board-level debugging
•
Provides flexible package options for reduced PCB real estate
•
Lower power dissipation, 150mW/port
•
Power management modes
•
Virtual Cable Tester feature
•
Auto-MDI/MDIX crossover for 100BASE-TX and 10BASE-T ports
•
Jumbo frame support to 10 KB with up to +/-150 ppm clock jitter
•
IEEE 802.3u Auto-Negotiation support for automatic speed and duplex selection
•
Far-End-Fault-Indication (FEFI) support for 100BASE-FX applications
•
100BASE-TX performance over 150 meters
•
Flexible serial and parallel LED support
•
IEEE 1149.1 standard test access port and boundary scan compatible
•
Small outline packaging; 88E3082 in 224-pin TFBGA, 88E3083 in 128-pin LQFP
APPLICATIONS
The Marvell Alaska 88E3082 and 88E3083 8-port transceivers are ideal for high-port density FE routers, hubs, and switches.
The ultra-low power dissipation of only 150mw per port and the Marvell VCT advanced cable diagnostics enable the most
cost-effective designs.
88E3082
Package
RMII
SMII
SSSMII
DDR-SSSMII
Virtual Cable Tester
Fiber Support
Parallel LEDs
Serial LED Mode
Power Management
Industrial Grade
224-Pin TFBGA
Yes
Yes
Yes
Yes
Yes
All Ports
Yes
Yes
Yes
Yes
88E3083
128-Pin LQFP
No
Yes
Yes
Yes
Yes
Port 7 Only
Yes
No
Yes
No
Fig 3. Device Feature Comparison
THE MARVELL ADVANTAGE:
Marvell products come with complete reference designs which include board layout designs, software, manufacturing
diagnostic tools, documentation, and other items to assist customers with product evaluation and production. Marvell’s worldwide field application
engineers collaborate closely with end customers to develop and deliver new leading-edge products for quick time-to-market. Marvell utilizes
world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low-cost total solutions.
ABOUT MARVELL:
Marvell is the leader in storage, communications and consumer silicon solutions. Marvell’s diverse product portfolio includes
switching, transceiver, communications controller, processors, wireless, power management and storage solutions that power the entire communications
infrastructure, including enterprise, metro, home, storage, and digital entertainment solutions. For more information, visit our website at
www.marvell.com.
Marvell Semiconductor, Inc.
5488 Marvell Lane
Santa Clara, CA 95054
Phone 408.222.2500
www.marvell.com
Copyright © 2007. Marvell International Ltd. All rights reserved. Marvell, the Marvell logo,
Moving Forward Faster, Alaska, Datacom Systems on Silicon, Fastwriter, Libertas, Link Street,
NetGX, PHYAdvantage, Prestera, Raising The Technology Bar, The Technology Within, Virtual
Cable Tester, and Yukon are registered trademarks of Marvell. Marvell Makes It All Possible,
Ants, AnyVoltage, Discovery, DSP Switcher, Feroceon, GalNet, GalTis, Horizon, RADLAN, UniMAC,
and VCT are trademarks of Marvell. All other trademarks are the property of their respective owners.
88E3082/83-001
2/07
Analog electronics
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