Description

The core provides an effective infrastructure to implement very high-speed communication between an FPGA and one or several network devices, providing up to 40Gbit/s transfer rate over Ethernet. It provides a standard AXI4 interface for user applications The controller implements the UDP protocol over a LAN (Local Area Network). The 40/10 Gb Ethernet Controller has assigned programmable MAC and IP addresses.

 

IP core Specifications
Supported FPGA families Xilinx UltraScale, UltraScale+
Design file formats formats Netlist, Source Code
Verification support VHDL Test-bench, optional BIST, test application
Tool requirements Xilinx Vivado 2019.1 or higher

 

Key Features
  • 10 Gbit/s or 40Gbit/s transfer rate over Ethernet
  • Included PCS and PMA
  • AXI4-Stream User IF
  • UDP/IP protocol
  • Axi4-Lite for register configuration
  • Automatic ARP management
  • ARP table with programmable entries number
  • Supports broadcast TX/RX Ethernet and IP packets
  • Programmable MAC and IP addresses
  • CRC check/generation for incoming/outgoing Ethernet packets
  • Configurable maximum packet length
  • Optional jumbo frame support

 

Resource Utilization on Xilinx KU9P (*)
IP Core configuration RAMB36 Tiles LUTs LUTRAMs FFs
10G 64-bit internal bus 6 4600 150 4900
40G 256-bit internal bus 9 19500 1050 12600

_(*) Actual resource utilization depends on selected speed and timing parameters_

 

Product Technical Specification

The IP core implements the UDP/IP part (bolded fields) of the communication stack represented in the following table.

 

The IP core block diagram is shown below :

 

The 10/40 G UDP Sybsystem is based on a scalable architecture supporting different Ethernet protocols. A simple user interface based on the AXI4-Stream protocol transfer UDP payload data to/from the IP core. The user can select different destination IP addresses using the TDEST field. The RX path consists of a Unified Parser that can be configured to support a wide range of data path width and clock frequency. A single optimised parser handles Ethernet, IP and UDP protocols with minimal latency and resources utilisation. In addition, the parser implements user defined packet filters. In a similar way, a Unified Packet Composer encapsulates the user provided UDP payload into UDP, IP and Ethernet. The core manages ARP replies and requests autonomously with configurable expiration time of the retrieved MAC-IP address association and automatic renewing. The core integrates PCS, PMA and transceivers for Xilinx Ultrascale and Ultrascale+ devices. The PCS/PMA layer can be omitted allowing the user to interface the core to third-party PCS using standard XGMII or XLGMII interfaces.

 

Verification

The IP core has been tested using a Sanitas EG board , the iTPM ADFE 1.6, which mounts a Xilinx Kintex UltraScale+ KU9P device.

 

Sanitas EG reserves the right to change specifications without notice