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Overview

SmartDV’s RS-FEC (528,514) IP is a silicon-proven, high-performance Reed-Solomon Forward Error Correction solution purpose-built for SoC designs requiring reliable, hardware-accelerated error correction across high-speed Ethernet, wireless fronthaul, storage, and serial interface applications. Implementing the RS(528,514) algorithm over GF(2¹⁰) with 10-bit symbols and 140-bit parity generation, it delivers robust symbol error correction through a fully pipelined architecture optimized for the low-latency, high-throughput demands of 100G NRZ Ethernet and CPRI fronthaul designs.

As NRZ-based 100G Ethernet and CPRI fronthaul deployments continue to scale across data center, wireless infrastructure, and telecom applications, reliable forward error correction has become a non-negotiable requirement for meeting aggressive BER targets. SmartDV’s RS-FEC (528,514) IP gives SoC teams a production-tested, algorithmically complete FEC implementation covering the full pipeline from parity generation through syndrome calculation, Berlekamp’s algorithm, Chien search, and pipelined error correction, that can be integrated independently wherever Reed-Solomon FEC with these parameters is required.

Built for design flexibility and silicon efficiency, the IP core is highly configurable for both ASIC and FPGA implementations, with a strong focus on area optimization, power management, and peak performance. Its pipelined architecture, bit locker mechanism, and clean host interface enable fast integration and confident design bring-up across a wide range of advanced process nodes and target applications.

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RS FEC
Key Features
  • Full RS-FEC (528,514) Functionality – Complete Reed-Solomon FEC implementation over GF(2¹⁰) with 10-bit symbols and 140-bit parity generation for robust high-speed serial link error correction
  • Complete FEC Pipeline – Parity generation, syndrome calculation, Berlekamp’s algorithm, Chien search for error position identification, and pipelined error correction for low-latency FEC operation
  • Berlekamp’s Algorithm – Efficient error locator polynomial computation using Berlekamp’s algorithm for optimal FEC decoding performance
  • Chien Search – Hardware-accelerated Chien search for rapid, accurate error position identification within each RS(528,514) codeword
  • Symbol Error Correction – Correction of up to 7 symbol errors per codeword, equivalent to up to 70 bits of error correction across the 10-bit symbol space
  • Bit Locker Mechanism – Reliable frame synchronization for robust FEC operation across all operating modes and data rates
  • Pipelined Architecture – Fully pipelined error correction mechanism for maximum throughput with minimal latency overhead at 100G NRZ and CPRI operating speeds
Compliance and Compatibility
  • Implements RS(528,514) Reed-Solomon FEC over GF(2¹⁰) per IEEE 802.3-2018 Clause 91 KR-FEC specification
  • Applicable to CPRI v7.0 fronthaul, 100G NRZ Ethernet, storage, and custom high-speed serial interface designs
  • Configurable SoC interface supporting AMBA AXI, AHB, APB, and custom wrappers for seamless integration
  • Compatible with ASIC and FPGA design flows across leading foundry process nodes
  • Compatible with all major EDA synthesis, simulation, and linting flows

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