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| BCM8228 (R) VARIRATETM MULTI-RATE TRANSCEIVER WITH SONET RATE ADAPTATION AND PM FEATURES * * * * * * * * * * * * * * * * * * * * Highly integrated rate adaptation device that maps a single STS-3/ STM-1 or a single STS-12/STM-4 stream into STS-48/STM-16 frames Channel Add/Channel Extract functionality for mapping and extracting lower SONET rates Fully integrated serial clock and data recovery (CDR) 155-Mbps/622Mbps/2.488-Gbps SONET/SDH transceiver Retiming functionality for GbE(SGMII)/FC(CML)/2xFC(CML)/ ESCON(CML)/FICON(CML) rates Retiming functionality for STS-3/STM-1, STS-12/STM-4 and STS-48/ STM-16 rates (CML) MUX/DEMUX functionality for STS-3/STM-1, STS-12/STM-4, and STS-48/STM-16 rates (4-bit LVDS) MUX/DEMUX functionality for GbE (TBI)/ESCON (10-bit)/FICON (10-bit) Pass-through functionality for other rates (DVB, HDTV etc.) Performance Monitoring (PM) for SONET with optional Section overhead insertion Redundant receive inputs and transmit outputs to facilitate protection switching designs 2-wire/4-wire serial interface for register access and PM count retrieval Powers down unused blocks via register access PRBS generators and detectors for inbound/outbound SONET and inbound/outbound GbE Polarity reversal for differential signals (low and high speed) Bit order swapping for parallel bus (4-bit and 10-bit) Exceeds SONET requirements for jitter generation, jitter transfer, and jitter tolerance Core supply: 1.8V I/O power supplies: CML at 1.8V, CMOS at 1.8V or 3.3V Low power consumption ~1.1W Standard CMOS process in 196-pin BGA package SUMMARY OF BENEFITS * Compliant with Optical Internetworking Forum (OIF), Telcordia, ITU-T, and IEEE 802.3 standards * Reduces design cycle and time to market * Enables new multirate and multiservice features while retaining existing architectures * Integrated performance monitoring ensures higher reliability without sacrificing cost or real estate * High level of integration allows for higher port density solutions * Bit order swap allows for ease of PCB design * Uses the most effective silicon economy of scale for CMOSbased devices * Low power consumption eliminates the need for external cooling sources * Target Applications - Multiservice platforms - Multiple rate SONET/SDH transmission equipment - SONET/SDH/GbE/FC Multiservice boxes - ADD/DROP Multiplexers - Optical and Digital cross-connects - SONET test equipment - Terabit routers - Edge routers - Repeaters BCM8228 Application Diagram BCM8228 Optical Module Optical Module BCM8228 Framer or ASIC BCM8228 Framer or ASIC Optical Module Optical Module BCM8228 OVERVIEW RCK4O Div4 4 IB OC3/12 to STS48 Mapper 16 16x5 FIFO 16:4 MUX Out Reg LVDS 4-BIT OUTPUT 1:4 DMUX SONET/ GE CDR High-Speed Serial Input lock_det 10:1 MUX 1:10 DMUX 8b10 ERROR DETECT TBI Reg Wptr 4:1 DMUX 4x9 FIFO Rptr Div4 4 TCK4I OB STS48 16 to OC3/12 4:16 Mapper DMUX In Reg LOA Det LVDS 4-BIT INPUT High-Speed Serial Input Reg Par to Ser Wptr 10x5 FIFO Div10 Rptr SONET/ GE CDR ser to par Div 4 ser to par Div 10 1-BIT INPUT 8b10b Error Detect TBI In Reg The BCM8228 VariRateTM device is a highly integrated variable-rate transceiver/mapper operating at STS-48/12/3, GbE, FC/2xFC (Fibre Channel), ESCON, and FICON data rates. The device has an integrated serial clock and data recovery (CDR) circuit, loss-of-signal (LOS) detection circuitry as well as an advanced feature set including performance monitoring and a serial interface (2-wire or 4-wire) for register access. The BCM8228 provides high-jitter tolerance and lowjitter generation to comply with Optical Internetworking Forum (OIF), IEEE 802.3, Telcordia, ANSI, and ITU-T standards. The BCM8228 reference clock input frequency is user-selectable to the line rate divided by either 16 or 10. It can be powered with a single 1.8V supply or dual 1.8/3.3V supply without any special power supply sequencing requirements. Power consumption of the device is typically 1.1W. The power-down control register turns off any unused blocks. The BCM8228 is packaged in a 15 x 15 mm, 196-pin BGA. Broadcom(R), the pulse logo, and Connecting everything(R) 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. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 8228-PB04-R 02/10/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
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