VMIC VMIVME-5576 overview
VMIC VMIVME-5576 Reflective Memory Module; VME Fiber-Optic Reflective Memory with Interrupts | VME bus | 175 Mega Baud Reflective Memory | Up to 2,000 m between...
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Manufactured byVMIC
Product groupMemory Module
DescriptionVMIC VMIVME-5576 Reflective Memory Module; VME Fiber-Optic Reflective Memory with Interrupts | VME bus | 175 Mega Baud Reflective Memory | Up to 2,000 m between nodes and up to 256 nodes
FeaturesHigh-Speed Fiber Optic Network2000 m Between Nodes, Up to 256 NodesError DetectionRedundant Transmission Mode for Suppressing ErrorsA24:A32:D32:D16:D8 Memory Access
OverviewThe VMIC / GE Fanuc VMIVME-5576 Reflective Memory interface allows data to be shared between up to 256 independent systems (nodes) at rates up to 6.2 Mbyte/s. Each Reflective Memory board may be configured with 256 Kbyte to 1 Mbyte of on-board SRAM. The local SRAM provides fast Read access times to stored data. Writes are stored in local SRAM 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 CPU and bus performance to maintain high data throughput.The Reflective Memory also allows interrupts to one or more nodes by writing to a byte register. These interrupt (three level, user definable) signals may be used to synchronize a system process, or used to follow any data that may have preceded it. The interrupt always follows the data to ensure the reception of the data before the interrupt is acknowledged. The VMIVME-5576 requires no initialization unless interrupts are being used. If interrupts are used, vectors and interrupt levels must be written to on-board registers and the interrupts armed.Each node on the system has a unique identification number between 0 and 255. The node number is established during hardware system integration by placement of jumpers on the board. This node number can be read by software by accessing an on-board register. In some applications, this node number would be useful in establishing the function of the node.
DescriptionVMIC VMIVME-5576 Reflective Memory Module. VME Fiber-Optic Reflective Memory with Interrupts | VME bus | 175 Mega Baud Reflective Memory | Up to 2,000 m between nodes and up to 256 nodes
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Green Eagle Logistics
VMIVME-5576
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