BCM8703 ? serial 10-g etherne t/fibre channel transceiver with xaui interface BCM8703 application block diagram ? ieee 802.3ae compliant support for xenpak and xpak standards xenpak support optimized for xenpak/xpak layout and thermal fully integrated cmu, cdr, and serdes integrated limiting amplifier and eyeopenertm for interfacing to xfp modules pmd interface with serial 10.3125/10.5188 gbps cml psc 64b/66b scrambler/descrambler xgxs 8b/10b error detection endec xaui link synchronization/deskew four-lane xaui interface (3.125/3.5188 gbps) loss-of-signal detection digital optical monitoring (dom) support loopback modes 802.3 clause 45 management interface extended indirect address access built-in self-test (bist) built-in jitter tests for xaui and pmd built-in bert test support eeprom interface support automatic device configuration at power-up. core power supply: 1.2v low-power cmos solution: 1.5w typical low power consumption eliminates external heat sinks, fans for system airflow, and expensive high current power supplies. reduces design cycle and time to market. uses the most effective silicon economy of scale for cmos- based devices. features summary of benefits xenpak/xpak fiber-optic modules lan/wan switches switch/router backbones hubs and repeaters network interface cards (nics) test equipment applications media access controller interface mac rs xgxs xgxs management interface xaui BCM8703 pcs/pma mdc mdio otx orx optical pmd eeprom 10.3125/10.5188 gbps
overview ? phone: 949-450-8700 fax: 949-450-8710 e-mail: info@broadcom.com web: www.broadcom.com broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2004 by broadcom corporation. all rights reserved. 8703-pb04-r 04/30/04 broadcom ? , the pulse logo, and connecting everything ? are trademarks of broadcom corporation and/ or its subsidiaries in the united states and certain other countries. all other trademarks mentioned are the property of their respective owners. the BCM8703 ethernet/fibre channel phy is a fully integrated serialization/deserialization (10.3125/10.5188-gbps) interface device performing the extension functions for a 10 gigabit serial ethernet reconciliation sublayer (rs) interface. the xgmii extender sublayer (xgxs), physical codings sublayer (pcs), and physical medium attachment (pma) functions include 8b/10b coding, 64b/66b coding, serdes, clock multiplication unit (cmu), and clock and data recovery (cdr). on-chip clock synthesis is performed by the high-frequency, low-jitter, phase-locked loops for the pmd and xaui output retimers. individual pmd and xaui clock recovery is performed on the device by synchronizing the on-chip vcos dir ectly to their respective incoming data streams. elastic buffers allow the xaui and pmd interfaces to operate in either a synchronous or asynchronous configuration. an external 156.25-mhz vcxo is required for synchronous mode operation or for asynchronous mode with clock cleanup. the BCM8703 is packaged in a 13 x 13 mm bga package with a 0.8- mm ball pitch. randomizer d c a 2 2 receive path e f h b g i ac-coupled 10.3215/10.5188-gbps differential cml serial data input 10.3215/10.5188-gbps differential cml serial data output 10.3215/10.5188-gbps differential cml serial clock output loopback mode: xaui independent lane loopback = b to a system loopback = g to i line loopback = c to d xgxs loopbacks = a to b pcs/pma/pmd loopback = d to c bist: e - xaui bist generator f - pmd bist checker g - xaui bist checker h - pmd bist generator ac-coupled 3.125/3.188-gbps differential xaui ac-coupled differential lvpecl 156.25/159.38 mhz elastic fifo 3.125/3.188-gbps differential xaui transmit path optics control and status management resisters and control interface 2-wire interface jtag mux mux mux serializer serializer dll & deserializer dll & deserializer sync detect lane sync 8b/10b decoder sync detect lane sync 8b/10b decoder lane alignment fifo lane alignment fifo elastic fifo 64b/66b encoder scrambler gearbox cmu & serializer phase detector phase detector cdr & deserializer gearbox 8b/10b encoder 8b/10b encoder cmu 64b/66b synchronizer descrambler decoder pcdrlk plosb xaop xaon xdop xdon xextclkp xextclkn xpdout pextclkp pextclkn ppdout pvcoxp pvcoxn xaip xain xdip xdin pcmulk rstb mdc mdio prtad[4:0] refclkout lasi sysrstb plosb/a1 config[1:0] txonoff sda scl zwenb trst jtck tms tdi tdo pdip pdin vcpcdr vcncdr pdop pdon pcop pcon optxenb0/1 optxrst0/1 oprxlos opbiasflt optmpflt oppwflt opoutlvl opinlvl optxflt oprxflt 10.5188 ghz 322.26/328.72 mhz 312.5/318.76 mhz 156.25/159.38 mhz 312.5/318.76 mhz 156.25/159.38 mhz 312.5/318.76 mhz 322.26/328.72 mhz tm limiting amplifier and eyeopener
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