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Ethernet 2.5G PCS
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
  • TBI Interface
  • GPII Interface (Gbps PCS Internal Interface)
  • 8b/10b encoding on each lane for transmit path code groups
  • 10b/8b decoding on each lane to convert received code groups to 32 XGMII data bits and 4 XGMII control bits
  • Synchronization of code groups on each lane to determine boundaries
  • Loopback functionality
  • SmartDV’s Ethernet 2.5G MAC can be used for a complete design solution with this core
Compliance and Compatibility
  • IEEE 802.3.2022 Clause 127 PCS Specification
  • IEEE 802.3 Clause 22 MDIO
  • IEEE 802.3az Energy Efficient Ethernet (EEE)
  • IEEE 802.3.2022 Clause 37 and 73 Auto negotiation
  • Compatible with all major EDA synthesis, simulation, and linting flows