Overview

Comcores offers a PCS IP core that can be used for both Ethernet and CPRI. Comcores PCS Ethernet and CPRI IP core is a silicon agnostic implementation of the PCS layer compliant with Ethernet standard IEEE 802.3-2018 and CPRI Specification V7.0.

The IP-core supports 1G, 2.5G, 5G, 10G, and 25G Ethernet data rates as well as CPRI data rate option 1 (614.14M) to option 10 (24.33024G).

Comcores PCS Ethernet and CPRI IP core can be dynamically configured to enable either 8b10b or 64b66b encoding/decoding.

In order to ensure easy integration, built-in test capabilities are provided in the core. The IP core has been optimized for size and is a highly tested solution that will fast-track any project. 

Block Diagram

Technical Specifications

Key Features & Benefits

Delivers Performance

• Designed to IEEE 802.3-2018
• Supports Ethernet speeds of 10G and 25G
• Complete 10GBASE-R and 25GBASE-R PCS solution
• Can be used in any 10G or 25G Ethernet PHY application

Feature Rich

• Configurable for several operating modes and speeds
• Works with multiple SerDes widths
• IEEE Std. 802.3 Clause 46 Reconciliation Sublayer (RS) and 10 Gigabit Media Independent Interface (XGMII)
• IEEE Std. 802.3 Clause 49 Physical Coding Sublayer (PCS) for 64B 66B, type 10GBASE-R
• IEEE Std. 802.3 Clause 107 Physical Coding Sublayer (PCS) for 66B 66B, type 25GBASE-R
• IEEE Std. 802.3 Clause 45 Management Data Input/Output (MDIO) Interface
• IEEE Std. 802.3 Clause 74 Forward Error Correction (FEC) sublayer for BASE-R PHYs
• IEEE Std. 802.3 Clause 78 Energy-Efficient Ethernet (EEE)
• IEEE Std. 802.3 Clause 108 Reed-Solomon Forward Error Correction
• (RS-FEC) sublayer for 25GBASE-R PHYs
• Support XGMII for 10G and XXVGMII for 25G
• PMA/SerDes interface is default 40-bit, with 32, 64 and 66 bit being optional
• 64B 66B encoding/decoding

Highly Configurable

• Enabling the use of multiple rates of Ethernet
• Easy interfacing to standard MAC’s
• Several common control bus standards are supported
• Can be delivered with an integrated MAC for plug and play
• Includes test pattern Generator/Checker

Silicon Agnostic

• Designed in SystemVerilog and targeting both ASICs and FPGAs

Deliverables

The IP Core can be delivered in Source code or Encrypted format. The following deliverables will be provided with the IP Core license:

• Solid documentation, including User Manual and Release Note
• Simulation Environment, including Simple Testbed, Test case and Test Script
• Programming Register Specification
• Timing Constraints in Synopsys SDC format
• Access to support system and direct support from Comcores Engineers
• Synopsys SGDC Files (optional)
• Synopsys Lint, CDC and Waivers (optional)