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Reed-Solomon Codec IP

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  • IEEE 802.3bj Reed-Solomon Encoder and Decoder
    • Compliant with IEEE 802.3bj, Clause 91
    • Support for KR4 (528, 514) and KP4 (544, 514) Reed-Solomon (RS) code
    • Corrects up to seven (KR4) or up to 15 (KP4) erroneous symbols
    Block Diagram -- IEEE 802.3bj Reed-Solomon Encoder and Decoder
  • 100G Reed-Solomon Codec for Ethernet IEEE 802.3 Clause 91 (803.3bj)
    • FEC Sublayer for 100GBASE-CR4 and 100GBASE-KR4 PHY (clause 91 of the IEEE 802.3bj standard).
    • 100G Ethernet MAC-friendly interface
  • Highly Integrated Reed Solomon Codec
    • Polynomial compliant to Intelsat IESS-308; RTCA DO-217 AppendixF, Revision D Standard.
    • High throughput rate.
    • Fully programmable to correct from 1 to 10 error bytes or 20 erasure bytes per block.
    • Configurable odd or even number of check bytes.
    Block Diagram -- Highly Integrated Reed Solomon Codec
  • Reed Solomon Codec
    • The CMS0013 Reed Solomon Codec provides ultimate flexibility in its operation and build.
    • The design uses the Berlekamp Massey algorithm in order to maximise speed and efficiency.
    Block Diagram -- Reed Solomon Codec
  • 2.5 Gbps GPON FEC Codec
    • This high performance core is a full featured Forward Error Correction encoder and decoder, specially designed for high speed optical networks or any other broadband applications.
    • It is fully compliant with the 2.5 Gbps GPON standard (G.984.3) and is available for FPGA or ASIC implementation.
    • The FEC algorithm is based on Reed-Solomon (255,239) code and consists of an encoder and decoder module.
    Block Diagram -- 2.5 Gbps GPON FEC Codec
  • IEEE 802.16 WirelessMAN OFDM Channel Codec
    • The CMS0005 802.16 Channel Codec provides all of the functionality necessary to implement the back end data processing in an 802.16a WirelessMAN-OFDM Phy Layer device.
    • Its design has been carefully constructed to provide excellent FPGA performance without compromising the ASIC implementation in terms of area or speed.
    Block Diagram -- IEEE 802.16 WirelessMAN OFDM Channel Codec
  • Reed Solomon Codec (Errors-only)
    • The CMS0007 Reed Solomon Codec provides ultimate flexibility in its operation and build.
    • The design uses the Berlekamp Massey algorithm in order to maximise speed and efficiency.
    Block Diagram -- Reed Solomon Codec (Errors-only)
  • Reed-Solomon Compiler IP Core
    • The Reed-Solomon (RS) compiler offers a fully parameterizable RS coder and RS decoder
    • RS coder/decoders (CODECs) are widely used for error detection and correction in a wide range of digital signal processing (DSP) applications for storage, retrieval, and transmission of data.
  • OTN Framer
    • Conforms to G.709.
    • Generates the OTN frame structure and inserts framing overhead; detects and aligns to the OTN framing pattern.
    • Processes the OTN frame, OTUk Overhead, and Section Monitoring BIP. Processes ODUk Overhead, calculates and detects Path Monitoring BIP.
    • Supports synchronous payload mappings (eg: ATM, GFP), and asynchronous SONET/SDH mappings (accommodating positive/negative stuffing).
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