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Broadcom 10G交换芯片 8705 芯片资料.pdf

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BCM8705 ® SERIAL 10-GBE/FIBRE CHANNEL TRANSCEIVER WITH WIS LAYER AND XAUI™ INTERFACE F E A T U R E S S U M M A R Y O F B E N E F I T S • Fully integrated CMU, CDR, SerDes, limiting amplifier, EyeOpener®, and 4-lane XAUI™ interface PMD interface supported serial rates: 9.953/10.3125/ 10.5188-Gbps Receive equalization on XAUI and 10G serial interfaces Transmit pre-emphasis and amplitude control on XAUI interface 10G PMD interface phase and decision threshold adjust WIS layer for EOS/WAN applications SONET performance monitoring Supports Broadcom’s StrataXGS® Ethernet switches service aware flow control (SAFC) protocol Meets and exceeds industry standard IEEE 802.3™ae serial Ethernet transceiver (LAN/WAN PHY), MDIO Clause 45 management interface with extended indirect address register access 10-Gigabit Fibre Channel draft, rev 3.0 Support for XFP/XFI interfaces Support for XENPAK/X2 3.0 and XPAK MSA optical module standards Additional features Jumbo packets support in WAN mode I2C master to control XFP module from device Reference clock output for XFP module reference clock Staged power-up mode to minimize in-rush current Loopback modes supporting IEEE standards modes Built-in self-test (BIST) and PRBS generator/checker Pin-compatible with the BCM8704 Low power: LAN mode 900 mW, WAN mode 1.0W to 1.1W Available in 13-mm x 13-mm and 17-mm x 17-mm plastic BGA (Pb-free version also available) Best performance for LAN (10-GbE) and WAN (OC-192 SONET) application Universal design for 10-GbE, SONET, and 10 GFC for XENPAK/X2 module Compliant to XENPAK/X2 3.0 and XPAK MSA optical module standards Integrated and compact design allows for high-density line card applications Upgrade path for existing Broadcom LAN PHY transceivers Build-in features reduce external components Clean-up PLL 2.5V voltage regulator output In-rush current limits A P P L I C A T I O N S XENPAK, X2, XPAK modules Interface to XFP modules LAN/MAN/WAN switch/routers Hubs and repeaters Network interface cards (NICs) BCM8705 Block Diagram XAUI BCM8705 Media Access Controller Interface RS S X G X MAC Management Interface 9.953/10.3125/10.5188 Gbps S X G X A M P / S C P I S W MDC MDIO OTX ORX Optical PMD EEPROM
O V E R V I E W System/MAC Interface Line/Fiber-Optic Module Interface Differential CML AC-coupled internally biased differential CML AC-coupled internally biased differential LVPECL AC-coupled internally biased differential CML Differential CML PDIP/N 10G Serial Inputs PCOP/N PDOP/N 10G Serial Outputs PMD Analog VCPCDR VCNCDR CDR Loop Filter CMOS XAUI PMD CMOS OPTXENB0/1 OPTXRST0/1 OPRXLOS OPBIASFLT OPTMPFLT OPPWFLT OPTXFLT OPRXFLT OPOUTLVL OPINLVL Optics Control and Status CMOS XAUI outputs XAUI inputs External VCXO Control and Status 2-Wire interface JTAG X[A:D]OP/N X[A:D]IP/N PPDOUT XPDOUT PEXTCLKP/N XEXTCLKP/N PVCOXP/N SYSRSTB RSTB MDC MDIO PRTAD[4:0] PLOSB/A1 PCDRLK PCMULK REFCLKOUT 2WENB CONFIG[1:0] LASI TXONOFF SDA SCL TRSTB JTCK TMS TDI TDO BCM8705 Fully Integrated Interface The BCM8705 Ethernet/Fibre Channel/SONET LAN/WAN PHY is a fully integrated serialization/deserialization (9.953/10.3125/ 10.5188-Gbps) interface device performing the extension functions for a 10-gigabit serial Ethernet reconciliation sublayer (RS) interface. The XGXS, PCS, and PMA functions include 8B/10B coding, 64B/66B coding, SerDes, WIS, clock multiplication unit (CMU), and clock and data recovery (CDR). For WAN applications, a WIS-compliant framer with flexible clocking modes allows transmission of Ethernet traffic over a WAN network. 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 directly to their respective incoming data streams. Elastic buffers are provided to allow the XAUI and PMD interfaces to operate in asynchronous configuration. Only an external 155.52/156.25/ 159.38-MHz oscillator is required for the reference clock input. The BCM8705 is available in a 13-mm × 13-mm, 256-pin FBGA with a 0.8-mm ball pitch and also in a 17-mm x 17-mm, 256-pin 1-mm ball pitch RoHS-compliant package. Broadcom®, the pulse logo, Connecting everything®, the Connecting everything logo, EyeOpener®, and StrataXGS® are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. ® BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2006 by BROADCOM CORPORATION. All rights reserved. 8705-PB02-R 04/17/06 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com
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