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VME-5565

VMEbus Ultrahigh-Speed Fiber-Optic Reflective Memory with Interrupts

VME-5565 Reflective Memory - interface allows data to be shared between up to 256 independent systems (nodes) at rates up to 174 Mbyte/s. Each Reflective Memory board can be configured with either 64 Mbyte or 128 Mbyte of onboard SDRAM. The local SDRAM provides fast Read access times to stored data. Writes are stored in local SDRAM and broadcast over a high speed fiber-optic data path to other Reflective Memory nodes.The transfer of data between nodes is software transparent, so no I/O overhead is required. Transmit and Receive FIFOs buffer data during peak data rates to optimize processor and bus performance to maintain high data throughput.

Features
  • High speed, easy to use fiber-optic network (2.12 Gbaud serially)
  • Data written to memory in one node is also written to memory in all nodes on the network
  • Up to 256 nodes
  • Connection with multimode fiber up to 300m, single mode fiber up to 10km
  • Dynamic packet size, 4 to 64 bytes of data
  • Network transfer rate 43 Mbyte/s (4 byte packets) to 174 Mbyte/s (64 byte packets)
  • VMEbus transfer rate 40 Mbyte/s
  • 64 Mbyte or 128 Mbyte SDRAM Reflective Memory
  • Two independent DMA channels
  • Any node on the network can generate an interrupt in any other node on the network or in all network nodes with a single command
  • Error detection
  • Redundant transfer mode for extra error suppression
  • No processor overhead
  • No processor involvement in the operation of the network
  • VMISFT-RFM2G network and shared memory driver included
  • Operating system support for Windows NT®, Windows® 2000, VxWorks®, and Linux
Ordering Options
Manuf. Part No    Part Description  Memory  Fiber Interface
VME-5565-110000  VMEbus Refective Memory Board  128 MB  multi-mode
VME-5565-111000  VMEbus Refective Memory Board  128 MB  single-mode
All versions are euquipped with 4k FIFO
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