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Center of Excellence Cognitive Interaction Technology

Virtex-4 FX FPGA Module DB-V4

As an extension to the communication infrastructure of the base systems, the DB-V4 integrates serial high-speed links into the RAPTOR environment. Via 20 RocketIO links, each capable of transceiving 6.5 GBit/s in full duplex mode, modules can communicate even between different RAPTOR base systems. Utilizing these transceivers, four copperbased data links with a throughput of up to 32.5 GBit/s each are realized on the DB-V4 module. Copper cables with a length of up to 2 m can be used without bandwidth degradation. By adapting the cabling between modules, the communication topology can be changed without affecting the communication via the RAPTOR base system. Special attention has been directed to enable efficient partial dynamic reconfiguration of the FPGA. Therefore, even during partial reconfiguration, the FPGA can access the embedded SDRAM and the communication interfaces.


  • Xilinx Virtex-4 FX FPGAs
  • XC4VFX40 up to XC4VFX100
    • 41.904 Logic Cells (XC4VFX40)
    • 94.896 Logic Cells (XC4VFX100)
  • 2 embedded PowerPC processors
  • SODIMM socket for up to 4 GByte DDR2-SDRAM
  • Debug interface: 2x38-Pin Mictor connector
  • Optimized for partial dynamic reconfiguration
  • Stand-alone operation
  • 20 Rocket-IO Transceiver with 6,5 GBit/s each