Ethernet 2.5G PCS IP

Design IP

Overview

SmartDV’s Ethernet 2.5G PCS (Physical Coding Sublayer) IP Core is a silicon-proven solution that bridges the Ethernet MAC and PHY layers to ensure reliable data transmission over 2.5G links. It performs 8b/10b encoding/decoding, auto-negotiation, and link training functions in compliance with IEEE 802.3 specifications, enabling robust and standards-based physical layer connectivity.

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. The PCS IP core supports seamless integration with Ethernet MACs and PMAs through GMII and XGMII interfaces, making it well-suited for a variety of applications including broadband access, industrial automation, and embedded networking.

Benefits

Standards-Compliant PCS Layer – Implements the Physical Coding Sublayer as defined in IEEE 802.3-2022, supporting reliable data transmission for 2.5G Ethernet systems
2.5GBASE-X and 1000BASE-X Compatibility – Provides encoding, decoding, and link negotiation for both 2.5G and 1G Ethernet operation, ensuring backward compatibility
8b/10b Line Coding – Performs encoding and decoding with error detection, disparity control, and synchronization for robust link performance
Low-Latency, Efficient Architecture – Optimized data path ensures minimal latency and stable throughput for real-time or high-bandwidth applications
Auto-Negotiation Support – Supports IEEE 802.3 Clause 37 Auto-Negotiation for seamless link establishment and speed adaptation
Flexible Interface Options – Supports standard GMII, RGMII, and XGMII interfaces for connectivity to MAC and PHY layers
Seamless MAC Integration – Designed for direct connection with SmartDV’s 2.5G MAC IP, forming a verified and efficient MAC-to-PHY pipeline for ASIC or FPGA designs

Compliance and Compatibility

Fully compliant with IEEE 802.3-2022, including 2.5GBASE-X and 1000BASE-X PCS specifications
Implements 8b/10b encoding/decoding and Clause 37 Auto-Negotiation features per standard
Compatible with GMII, RGMII, and XGMII interfaces
Compatible with all major EDA synthesis, simulation, and linting flows

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