ETC 88X2080

Transceiver
Solutions
Alaska® X
Dual 10 Gigabit XAUI to XGMII Transceiver
Octal 3.1875 Gbps SERDES
88X2080
PRODUCT OVERVIEW
The Marvell¨ Alaska¨ X device (88X2080) is a CMOS Dual 10 Gigabit Ethernet XAUI and Octal 3.125/3.1875 Gbps
SERDES device. The 88X2080 transceiver performs all of the necessary XAUI to XGMII functions for 10 Gigabit
Ethernet (GbE) and 10 Gigabit Fiber Channel applications, while achieving very low power dissipation. The parallel
and serial interfaces on the device are IEEE 802.3ae 10 Gigabit Media Independent Interface (XGMII) and 10
Gigabit Attachment Unit Interface (XAUI), respectively.
The Alaska X device incorporates eight lanes operating up to 3.125/3.1875 Gbps, each with a selectable 8B/10B
encoder/decoder. The eight lanes can operate independently from 1.0 to 3.1875 Gbps to support a variety of
backplane applications or can be conÞgured as two 10 Gigabit XAUI channels. The device allows the use of either
62.5, 125 or 156.25/159.375 MHz reference inputs to provide ßexible clocking. In addition, the device can be
conÞgured as a single XGMII to Dual XAUI device for redundancy applications. The device also supports XAUI
repeater applications.
TX
XGMII - A
RX
TX
XGMII - B
RX
MDC
MDIO
INT#
Redundancy
and
Repeater
MUX
MDIO
Management
Interface
IEEE
802.3ae
PCS
XAUI
Quad
SERDES
A
(XAUI-A)
IEEE
802.3ae
PCS
XAUI
Quad
SERDES
B
(XAUI-B)
JTAG
LED[7:0]
LED
Registers
CLK+/SEL_FREQ
RESET#
CLK/RESET
BIST
Port 7
Port 6
Port 5
Port 4
Port 3
Port 2
Port 1
Port 0
XAUI A
XAUI B
TRST#
TCK
TDI
TMS
TDO
CONFIG[4:0]
Fig 1. Alaska X 10 Gigabit Transceiver (88X2080) Block Diagram: XAUI Modes
FEATURES
¥ IEEE 802.3ae XGMII parallel interface
¥ IEEE 802.3ae XAUI serial interface
¥ 1.0 to 3.1875 Gbps data rates
¥ Selectable 62.5/125/156.25/159.375 MHz reference frequencies
¥ Selectable 8B/10B encoder/decoder
¥ Independent clock generator and CDR per channel
¥ Programmable pre-emphasis
¥ On-chip serial terminations (50 ohms)
¥ Low power dissipation: 2.4W; Redundancy mode: 2.0W
¥ 1.5V or 1.8V XGMII HSTL input/output (I/O)
¥ IEEE 802.3ae MDIO interface
TXDx[7:0]
TXCx
TX_CLKx
Input
FIFO
8B/10B
Encoder
Serializer
TXxP
TXxN
RXDx[7:0]
RXCx
RX_CLKx
Output
FIFO
10B/8B
Decoder
Deserializer
RXxP
RXxN
Clock
Synthesizer
Clock/Data
Recovery
MDIO
Management
Interface
JTAG
LED[7:0]
LED
Registers
CLK+/SEL_FREQ
RESET#
CLK/RESET
BIST
MDC
MDIO
INT#
TRST#
TCK
TDI
TMS
TDO
CONFIG[4:0]
Fig
Alaska X 10
Gigabit Transceiver
Block2. Diagram:
Backplane
Modes (88X2080) BENEFITS
¥ IEEE compliant interfaces ensure interoperability
¥ IEEE compliant interfaces ensure interoperability
¥ Backward compatibility for backplane applications
¥ Provides timing ßexibility
¥ Enables proprietary coding
¥ Provides robust performance
¥ Operation over long PCB traces and copper cable
¥ Allow for fewer external components
¥ Lowers overall system power
¥ Provides interface ßexibility
¥ Eases programmability
Alaska® X Dual 10 Gigabit XAUI to XGMII Transceiver
FEATURES
BENEFITS
¥ IEEE 1149.1 JTAG test interface
¥ Small 448-pin PBGA package (23 mm x 23 mm)
¥ 0.15-micron CMOS process
¥ Superior manufacturability
¥ Occupies less board space
¥ State-of-the-art production process
APPLICATIONS
The Marvell Alaska X transceiver operates as the XAUI to XGMII converter between the optical modules and switch devices in 10 GbE and 10 Gigabit Fiber Channel applications. The device connects to optical modules such as XENPAK/XPAK MSA modules
using the XAUI interfaces and to the switch devices using the XGMII interfaces.
The Alaska X device features powerful amplitude and pre-emphasis controls, which allow the device to be used as a highly robust
backplane SERDES. The device can operate over 60 inches of generic backplane PCB traces with multiple connectors making it
ideal for chassis-based switching systems.
The 88X2080 product is also well-suited for 10 Gigabit copper connections such as interconnect links between stackable
switching systems, uplink connections and chassis-to-chassis connections. The Alaska X transceiver allows 10 Gigabit operation
over standard copper cables such as 15 meters of standard InÞniBandª 8-pair cable.
The 88X2080 device is ideally suited for the following applications:
1. Dual 10 GbE/10 Gigabit Fiber Channel links: Dual XGMII to Dual XAUI mode
2. Redundant 10 GbE/10 Gigabit Fiber Channel links: Single XGMII to Dual XAUI mode
3. XAUI retimer/repeater: XAUI to XAUI repeater mode
4. Backplanes: Octal SERDES modes
The 88X2080 device seamlessly interfaces with the following:
1. XENPAK/XPAK/X2 optical modules
2. Copper cable
3. PCB traces
4. Parallel optics
4
XENPAK/
Alaska X
XPAK
XGMII-A 10 Gigabit XAUI-A Optical
Transceiver 4
Module
(88X2080)
32
32
Switch
Fabric
3.125 Gbps
32
XGMII-B
32
Octal
4
XENPAK/
3.125 GbpsXAUI-B
XPAK
SERDES
Optical
4
Module
Fiber
XENPAK/ 4
XPAK
Optical XAUI-A
Module 4
3.125 Gbps
Fiber
32
Alaska X
10 Gigabit XGMII-A
Transceiver
(88X2080) 32
3.125 Gbps
Switch
Fabric
Octal 32
XENPAK/ 4 3.125
Gbps
XPAK
SERDES XGMII-B
Optical XAUI-B
32
Module 4
Fig 3. Alaska X 10 Gigabit Transceiver (88X2080) Applications Diagram
The Marvell Alaska X Dual 10 Gigabit XAUI to XGMII transceiver comes with a complete set of hardware
and software development tools to assist network hardware engineers with product evaluation. MarvellÕs worldwide Þeld applications
engineers collaborate closely with network equipment vendors to develop and deliver new competitive products to market on time. Marvell
utilizes recognized world-leading semiconductor foundry and packaging services to reliably deliver high-volume and low cost total solutions.
THE MARVELL ADVANTAGE:
For more information, visit our website at www.marvell.com.
Marvell Semiconductor, Inc.
700 First Avenue
Sunnyvale, CA 94089
Phone 408.222.2500
www.marvell.com
©2002 Marvell International Ltd. All rights reserved. Marvell, the Marvell logo, Moving
Forward Faster, Alaska, the Galileo logo, and GalNet are registered trademarks of Marvell.
Discovery, Fastwriter, Galileo Technology, GalTis, Horizon, Libertas, PHY Advantage, Prestera,
Raise the Technology Bar, and Virtual Cable Tester are trademarks of Marvell. All other
trademarks are the property of their respective owners.
100121-001 08/02