transceiver solutions 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 contgured 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 ?exible clocking. in addition, the device can be contgured as a single xgmii to dual xaui device for redundancy applications. the device also supports xaui repeater applications. alaska x dual 10 gigabit xaui to xgmii transceiver octal 3.1875 gbps serdes 88X2080 features benefits ieee 802.3ae xgmii parallel interface ieee compliant interfaces ensure interoperability ieee 802.3ae xaui serial interface ieee compliant interfaces ensure interoperability 1.0 to 3.1875 gbps data rates backward compatibility for backplane applications selectable 62.5/125/156.25/159.375 mhz reference frequencies provides timing ?exibility selectable 8b/10b encoder/decoder enables proprietary coding independent clock generator and cdr per channel provides robust performance programmable pre-emphasis operation over long pcb traces and copper cable on-chip serial terminations (50 ohms) allow for fewer external components low power dissipation: 2.4w; redundancy mode: 2.0w lowers overall system power 1.5v or 1.8v xgmii hstl input/output (i/o) provides interface ?exibility ieee 802.3ae mdio interface eases programmability fig 2. alaska x 10 gigabit transceiver (88X2080) block diagram: backplane modes port 4 port 5 port 6 port 7 input fifo 8b/10b encoder output fifo 10b/8b decoder deserializer clock synthesizer clock/data recovery txdx[7:0] txcx tx_clkx rxdx[7:0] rxcx rx_clkx txxp txxn port 0 port 1 port 2 port 3 rxxp rxxn serializer mdio management interface registers jtag mdc mdio int# clk+/- sel_freq reset# trst# tck tdi tms tdo led bist clk/reset led[7:0] config[4:0] fig 1. alaska x 10 gigabit transceiver (88X2080) block diagram: xaui modes xaui a tx rx tx rx xgmii - a xgmii - b xaui b ieee 802.3ae pcs a ieee 802.3ae pcs b xaui quad serdes (xaui-a) xaui quad serdes (xaui-b) mdio management interface registers jtag mdc mdio int# clk+/- sel_freq reset# trst# tck tdi tms tdo led bist clk/reset led[7:0] config[4:0] redundancy and repeater mux
alaska x dual 10 gigabit xaui to xgmii transceiver 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 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 intnibanda 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 the marvell advantage: 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. marvell?s worldwide teld 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. for more information, visit our website at www.marvell.com. features benefits ieee 1149.1 jtag test interface superior manufacturability small 448-pin pbga package (23 mm x 23 mm) occupies less board space 0.15-micron cmos process state-of-the-art production process xaui-a xaui-b 4 4 4 4 fig 3. alaska x 10 gigabit transceiver (88X2080) applications diagram xgmii-a 3.125 gbps 3.125 gbps 3.125 gbps xaui-a xaui-b fiber 32 32 xgmii-b 32 32 4 4 4 4 xgmii-a 32 32 xgmii-b 32 32 switch fabric switch fabric alaska x 10 gigabit transceiver (88X2080) octal 3.125 gbps serdes alaska x 10 gigabit transceiver (88X2080) octal 3.125 gbps serdes fiber xenpak/ xpak optical module xenpak/ xpak optical module xenpak/ xpak optical module xenpak/ xpak optical module
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