BCM8228 ® VARIRATE™ MULTI-RATE TRANSCEIVER WITH SONET RATE ADAPTATION AND PM SUMMARY OF BENEFITS 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.) • Redundant receive inputs and transmit outputs to facilitate protection switching designs • • • 2-wire/4-wire serial interface for register access and PM count retrieval • • • Polarity reversal for differential signals (low and high speed) • • • • Core supply: 1.8V Performance Monitoring (PM) for SONET with optional Section overhead insertion Powers down unused blocks via register access PRBS generators and detectors for inbound/outbound SONET and inbound/outbound GbE Bit order swapping for parallel bus (4-bit and 10-bit) Exceeds SONET requirements for jitter generation, jitter transfer, and jitter tolerance • 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 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 BCM8228 Application Diagram BCM8228 Optical Module Optical Module BCM8228 Framer or ASIC Framer or ASIC BCM8228 Optical Module Optical Module BCM8228