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Overview

SmartDV’s Ethernet 100G PCS IP is a silicon-proven, fully featured Physical Coding Sublayer solution purpose-built for SoC designs requiring reliable, high-bandwidth 100 Gigabit Ethernet connectivity across data center, enterprise networking, and high-performance computing applications. Fully compliant with IEEE 802.3-2022 Clause 82, it delivers complete 100GBASE-R, 100GBASE-KR4, and 100GBASE-CR4 PCS functionality supporting 20-lane distribution for 100GBASE-R and 4-lane distribution for KR4/CR4 backplane and copper configurations, with 64b/66b encoding and decoding across the full PCS to PMA service interface.

Designed to address the demanding signal integrity and error correction requirements of modern data center interconnects, the IP implements complete block synchronization, alignment marker insertion and removal, PCS lane deskew and reordering, gearbox functionality for various data widths, BIP-8 insertion and checking per lane for bit error rate monitoring, and RS-FEC per IEEE 802.3-2022 Clause 91 using the RS(528,514) code for robust forward error correction. Its loopback functionality, receiver link fault status detection, and IEEE 802.3az Energy Efficient Ethernet support give data center SoC teams a production-tested, spec-complete 100G PCS implementation for the most demanding network switching and NIC designs.

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 data center process nodes.

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Ethernet 100G PCS
Key Features
  • Full 100G PCS Functionality – Complete PCS implementation per IEEE 802.3-2022 Clause 82 supporting 100GBASE-R, 100GBASE-KR4, and 100GBASE-CR4 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 – 20-lane distribution for 100GBASE-R and 4-lane distribution for KR4/CR4 backplane and copper configurations
  • Block Synchronization and Alignment – Complete block synchronization, alignment marker insertion and removal, and PCS lane deskew and reordering
  • RS-FEC Support – RS-FEC per IEEE 802.3-2022 Clause 91 using RS(528,514) code for robust forward error correction on demanding channels
  • BIP-8 Error Monitoring – Per-lane BIP-8 insertion on transmit path and checking on receive path with bit error rate monitoring
  • Gearbox Functionality – Configurable gearbox for various data widths for flexible PMA interface support
  • Flexible PMA Interface – 32-bit and 40-bit PMA interface data width support for broad SerDes compatibility
  • 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 data center switch and NIC operation
  • Test Pattern Generation – Programmable PRBS31 and PRBS9 test pattern generation and checking for physical layer validation
Compliance and Compatibility
  • Fully compliant with IEEE 802.3-2022 Clause 82 for 100GBASE-R, 100GBASE-KR4, and 100GBASE-CR4
  • Compliant with IEEE 802.3-2022 Clause 91 RS-FEC using RS(528,514)
  • 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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