Transceiver
Solutions
Alaska
廬
X
10 Gigabit XAUI to XGMII Transceiver
88X2040
PRODUCT OVERVIEW
The Marvell
簍
Alaska
簍
X transceiver (88X2040) is a CMOS 10 Gigabit XAUI Quad 3.125/3.1875 Gbps Serializer/
Deserializer (SERDES) device. The transceiver performs all the necessary XAUI to XGMII functions for 10 Gigabit
Ethernet (GbE) and 10 Gigabit Fiber Channel applications, while achieving very low power dissipation of 1.3W.
The Alaska X device includes an IEEE 802.3ae 10 Gigabit Media Independent Interface (XGMII) and 10 Gigabit
Attachment Unit Interface (XAUI). The Alaska X 10 Gigabit transceiver incorporates four lanes operating up to
3.125/3.1875 Gbps, each with a selectable 8B/10B encoder/decoder. The four lanes can operate independently
from 1.0 to 3.1875 Gbps to support a variety of backplane applications or can be configured as a single 10 Gigabit
XAUI channel. The device allows the use of either 62.5, 125 or 156.25/159.375 MHz reference inputs to provide
flexible clocking.
TXD[31:0]
TXC[3:0]
RXD[31:0]
RXC[3:0]
Port 3
Port 2
Port 1
Port 0
32
XGMII Interface
TX_CLK
4
32
4
RXDx[7:0]
RXCx
RX_CLKx
Output
FIFO
TBG/Clock
Synthesizer
Management
Interface
10B/8B
Decoder
CDRC/Clock
Recovery
Registers
Deserializer
RXxP
RXxN
RX_CLK
MDC
MDIO
INT#
JTAG
Fig 1. Alaska X 10 Gigabit Transceiver Block Diagram
FEATURES
樓
IEEE 802.3ae XGMII parallel interface
樓
IEEE 802.3ae XAUI serial interface
樓
Selectable 1.0 to 3.125/3.1875 Gbps data rates
樓
Selectable 62.5/125/156.25/159.375 MHz reference frequencies
樓
Selectable 8B/10B encoder/decoder
樓
Independent clock generator and CDR per channel
樓
Programmable pre-emphasis and amplitude
樓
On-chip serial terminations (50 ohms)
樓
Power dissipation: 1.3W
樓
1.5V or 1.8V XGMII HSTL I/O
樓
IEEE 802.3ae MDIO interface
樓
IEEE 1149.1 JTAG test interface
樓
Low cost 256-pin TFBGA package (17mm x 17mm)
樓
0.15-micron digital CMOS process
BENEFITS
樓
IEEE compliance
樓
IEEE compliance
樓
Backward compatibility for backplane applications
樓
Timing flexibility
樓
Enables proprietary coding
樓
Robust performance
樓
Enables longer PCB traces
樓
Fewer external components
樓
Low overall system power
樓
Interface flexibility
樓
Easy programmability
樓
Superior manufacturability
樓
Less board space
樓
State-of-the-art production process
XAUI Interface
TRST#
TCK
TDI
TMS
TDO
TXDx[7:0]
TXCx
TX_CLKx
Input
FIFO
8B/10B
Encoder
Serializer
TXxP
TXxN
1
2
