ALICE DAQ & HLT Common Read-Out Receiver Card (RORC)

Currently, both DAQ and HLT independently use Read-Out Receiver Cards (RORCs) to read out the detector data. Both cards provide a PCI-X Interface and two optical links. These cards transfer the data received from the optical links to the host memory using DMA and perform controlling and preprocessing. As PCI-X gets obsolete, a new common RORC for both HLT and DAQ will be developped. This card will be based on a Xilinx Virtex-6 FPGA with 8 lanes PCIe Gen2 and 12 bidirectional optical links up to 6.6 Gbps per channel

  • PCIe Gen2 x8 with Xilinx PCIe Hard Block
  • 3 QSFPs (3x 4+4 optical links) attached to the GTX Transceivers
  • Configuration Management