JESD204 Cyclic FEC IP – SmartDV

JESD204 Cyclic FEC IP

Design IP

Overview

SmartDV’s JESD204 Cyclic FEC IP is a robust solution engineered to improve link reliability and data integrity in high-speed serial interfaces, fully aligned with JESD204B, JESD204C, and JESD204D standards. Tailored for use in high-performance data converter systems, wireless infrastructure, radar, and test & measurement applications, the IP integrates cyclic redundancy-based Forward Error Correction (FEC) to detect and correct transmission errors efficiently, ensuring robust data transfer over lossy or bandwidth-constrained channels.

It supports programmable FEC parameters including codeword length, parity polynomial configuration, and error correction depth, allowing designers to fine-tune protection levels and latency based on system requirements. The architecture is optimized for low-latency correction with minimal impact on throughput, making it suitable for real-time applications.

Designed for flexibility, the IP core is highly configurable to meet specific design requirements, supporting both ASIC and FPGA implementations while optimizing for area, power, and performance. It can be easily integrated into JESD204-compliant transmitter and receiver pipelines, with support for multi-lane synchronization and deterministic latency operation.

Benefits

High-Reliability Data Protection – Implements Cyclic Forward Error Correction (FEC) for JESD204-based serial links, improving bit error resilience and link reliability in high-speed data transmission.
Configurable FEC Scheme – Supports multiple Reed-Solomon FEC (RS-FEC) code configurations, including (136,130), (144,130), (272,258), (528,514), and (544,514), aligned with IEEE 802.3 Clause 91 standards.
Flexible Integration with JESD204 Interfaces – Designed to work with JESD204C and JESD204D PHY and transport layers, enabling system-level FEC insertion and recovery in both PAM2 and PAM4 signaling environments.
Low-Latency and High-Throughput Architecture – Optimized encoding and decoding pipelines deliver real-time correction capability with minimal latency overhead, ensuring data integrity at link speeds up to 116 Gbps.
Programmable Codeword Structure – Supports programmable FEC block sizes, alignment blocks, and payload symbol widths, allowing flexible mapping to JESD204D frame and multiframe structures.
Error Detection and Correction Capability – Detects and corrects single and multi-symbol errors within each codeword, offering improved BER performance in noisy or high-loss channels.
System Diagnostic and Monitoring – Provides status registers, error counters, and FEC event reporting for link health monitoring and adaptive system tuning.
Optimized for SoC and IP Integration – Can be used as a standalone IP block or integrated within JESD204D Receiver or Transmitter IPs, with simple configuration and AXI-based control interface.

Compliance and Compatibility

Fully compliant with IEEE 802.3 Clause 91 RS-FEC specification
Compatible with JEDEC JESD204C and JESD204D standards
Compatible with all major EDA synthesis, simulation, and linting flows

Related Products

JESD204B/C Transmitter IP

JESD204B/C Receiver IP

JESD204D Transmitter IP

JESD204D Receiver IP

JESD204 VIP