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Ethernet 25G PCS
Design IP
Overview

SmartDV’s Ethernet 25G PCS (Physical Coding Sublayer) IP Core provides a reliable, high-speed data path between the MAC and the PMA/PHY layers for 25 Gigabit Ethernet systems. Compliant with IEEE 802.3by and 802.3bj, the IP supports 64b/66b encoding/decoding, lane alignment, deskewing, and forward error correction (FEC) for enhanced link integrity.

Ideal for data center and enterprise networking solutions, the PCS core is designed to interface with industry-standard MAC and PHY layers over XGMII or CGMII interfaces. It ensures seamless high-throughput data transfer with built-in support for multi-lane distribution and error resilience mechanisms.

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.

Ethernet 25G PCS
Benefits
  • XBI Interface with data widths: 16 Bits, 20 Bits, 32 Bits, 40 Bits, 64 Bits
  • 64b/66b encoding and decoding for transmit and receive paths
  • Data scrambling on the transmit path and descrambling on the receive path
  • Block synchronization
  • Bit Error Rate (BER) monitoring
  • Loopback functionality
  • SmartDV’s Ethernet 25G MAC can be used for a complete design solution with this core
Compliance and Compatibility
  • IEEE 802.3.2022 Ethernet Specification Clause 107 25GBASE-R and 25GBASE-KR PCS
  • IEEE 802.3.2022 Clause 108 RS FEC
  • IEEE 802.3az Energy Efficient Ethernet (EEE)
  • IEEE 802.3.2022 Clause 45 MDIO
  • Optional IEEE 802.3.2022 Clause 74 RS BASE-R FEC
  • Optional IEEE 802.3.2022 Clause 73 Auto Negotiation for Backplane Ethernet
  • Optional IEEE Standard 802.3.2022 Clause 72 Link Training
  • Compatible with all major EDA synthesis, simulation, and linting flows