DVB-GSE IPv4/IPv6 Encapsulator

DVB-GSE encapsulator IP cores for IPv4/IPv6 network-layer traffic, and utilising AXI4-Stream interconnects for receiving IP packets, and for producing BBFRAME output.

Features: 
  • GSE fragmentation & encapsulation of IPv4/IPv6 packets
  • Designed for high throughput1 and low latency
  • Supports GSE packet header types for no labels, 6 byte labels, label reuse, for label-based filtering
  • Parameterisable MTU’s and SRAM/buffer sizes
  • Low (logic and SRAM) resource usage
  • Support for both 16200b and 64800b BBFRAME’s, and all DATA FIELD sizes
  • AXI4-Stream (8-bit) Interconnect
  • Wishbone (SPEC B4) interface for control and packet/device statistics
  • Includes BBFRAME generator, stream MUX & scheduler, and padding & scrambling cores
  • Robust exception handling and with rapid recovery from exceptions (due to overflows & invalid input data)
  • FPGA-proven with Xilinx and Microsemi devices
Deliverables: 
  • Netlist or synthesisable RTL source code in VHDL
  • Comprehensive verification test bench and vectors in VHDL
  • User guides and documentation for integration & configuration
  • Top-level entity for a CCM-only system, to aid with evaluation and rapid-prototyping
Overview: 

High-throughput, low-latency encapsulator IP cores for building DVB-GSE systems. The IP Core Worx DVBGSE IP cores have been optimised for high performance, and also for DVB-S2/-T2/-C2 implementations that have strict resource/area constraints; for example, FPGA-based systems.

Performance: 

The following table shows the resource utilisation for various IP Core Worx DVB-GSE cores, when using Xilinx Vivado for synthesis, and targeting Xilinx ZYNQ devices. The designs satisfy the timing constraints at more than 160 MHz (ZYNC devices).

 

Resource IP_TO_GSE GSE_TO_IP ETH_TO_GSE GSE_TO_ETH
LUT6 720 303 1086 638
DFF 411 228 655 455
RAMB36 0.5 0.5 2 1.5
DSP 0 0 0 0
BUFG 1 1 1 1