CoaXPress-Over-Fiber HOST IP
●Transmission Specs: Supports CXP‑12 CXP-25downstream and 41.6Mbps uplink with optional 10G/25G nGMII
●Hardware Solution: Uses FPGA built-in GT transceivers with no external chips required
●Features: Retains native protocol, reuses fiber & Ethernet infrastructure for long-distance transmission
●Compatibility: Supports all Xilinx FPGAs with GT transceivers
Product Overview
CoaXPress-Over-Fiber (CoF) HOST IP is an easy-to-use, high-performance FPGA IP core. It supports CoaXPress protocol transmission over standard optical fiber and complies with CoaXPress over Fiber Bridge Protocol V1.0 (2021).
Without modifying the native CoaXPress protocol, this IP enables reusing existing Ethernet fiber infrastructure for image and data transmission, supporting long-distance and high-bandwidth application scenarios.
Key Features
- Compliant with CoaXPress over Fiber Bridge Protocol V1.0 (2021 Edition)
- Supports maximum CXP‑12 high-speed downstream link and 41.6 Mbps low-speed upstream link
- nGMII interface supports optional 10G/25G (10G by default), conforming to IEEE Std 802.3 Clause 46
- Utilizes FPGA built-in high-speed transceivers (GT) as PHY, no external chips required
- Easy deployment: simply instantiate the IP and complete basic connections without complicated configuration
- Compatible with all Xilinx FPGAs equipped with GT high-speed transceivers
CoaXPress-over-Fiber Technical Description
CoaXPress-over-Fiber is an important extension to the existing CoaXPress 2.0 standard, designed to transmit unmodified CoaXPress protocol over standard Ethernet and optical fiber.
Although standard Ethernet hardware, connectors and cables are adopted, the transmitted protocol is CoaXPress instead of Ethernet or GigE Vision.
In short, CoF allows users to reuse deployed fiber and Ethernet infrastructure to transmit CoaXPress images and data directly without protocol modification.
Supported Evaluation Boards
Typical Architecture Diagram
Figure 3: Internal Structure of CoF HOST Bridge
