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Overview

SmartDV’s Ethernet 50G PCS IP is a silicon-proven, fully featured Physical Coding Sublayer solution purpose-built for SoC designs requiring reliable, single-lane 50 Gigabit Ethernet connectivity across networking switch, router, and data center applications. Fully compliant with IEEE 802.3cd, it delivers complete 50GBASE-R and 50GBASE-KR2/CR2 PCS functionality with 64b/66b encoding and decoding, distributing data across 4 or 2 lanes depending on configuration for backplane, copper, and optical deployments.

Designed to address the demanding signal integrity requirements of modern single-lane and dual-lane 50 Gigabit interconnects, the IP implements complete 64b/66b encoding and decoding for both transmit and receive paths, data scrambling and descrambling, block synchronization, gearbox functionality for various data widths, alignment marker insertion and removal, lane deskew, per-lane BIP-8 insertion and checking for bit error rate monitoring, and mandatory RS-FEC per IEEE 802.3cd Clause 134 for reliable, standards-compliant operation. Its loopback functionality, receiver link fault status detection, configurable MDIO management interface, and optional support for Clause 74 Fire Code FEC, Clause 73 backplane auto-negotiation, and Clause 72 link training give networking SoC teams a production-tested, spec-complete 50G PCS implementation.

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 parameterized PMA interface architecture and clean host interface enable fast integration across a wide range of networking process nodes.

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Ethernet 50G PCS
Key Features
  • Full 50G PCS Functionality – Complete PCS implementation per IEEE 802.3cd supporting 50GBASE-R and 50GBASE-KR2/CR2 configurations
  • 64b/66b Encoding and Decoding – Complete 64b/66b line encoding and decoding for both transmit and receive paths with data scrambling and descrambling
  • Flexible Lane Distribution – Lane distribution across 4 or 2 lanes depending on 50 Gbps configuration
  • Block Synchronization and Alignment – Complete block synchronization, alignment marker insertion and removal, and PCS lane deskew
  • Mandatory RS-FEC Support – RS-FEC per IEEE 802.3cd Clause 134 for standards-compliant 50GBASE-R operation
  • Optional Fire Code FEC – Optional FEC per IEEE 802.3-2022 Clause 74 for backplane and copper channel flexibility
  • BIP-8 Error Monitoring – Per-lane BIP-8 insertion on transmit path and checking on receive path with bit error rate monitoring
  • Configurable Management Interface – Configurable MDIO interface per Clause 45 or SoC bus for flexible register access
  • Backplane Auto-Negotiation and Link Training – Optional support for Clause 73 backplane auto-negotiation and Clause 72 link training
  • Loopback and Link Fault Detection – Complete loopback functionality with receiver link fault status detection for design validation and system diagnostics
  • Energy Efficient Ethernet Support – IEEE 802.3az EEE support for power-efficient network interconnect operation
  • Test Pattern Generation – Programmable PRBS32 and PRBS9 test pattern generation and checking for physical layer validation
Compliance and Compatibility
  • Fully compliant with IEEE 802.3cd for 50GBASE-R and 50GBASE-KR2/CR2
  • Compliant with IEEE 802.3cd Clause 134 RS-FEC (mandatory for 50GBASE-R)
  • Optional support for IEEE 802.3-2022 Clause 74 Fire Code FEC
  • Optional support for IEEE 802.3-2022 Clause 73 backplane auto-negotiation and Clause 72 link training
  • Compliant with IEEE 802.3az Energy Efficient Ethernet
  • 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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