VMIC PCI-5565-010 Reflective Memory Node Card

Module Feature

PCI-5565-010 is a standard PCI bus fiber-optic reflective memory node card developed by VMIC, adopting 32/64 bit PCI interface compatible with 33 MHz and 66 MHz PCI bus. It carries 128 MB parity-checked SDRAM as local shared memory, data written to local memory is automatically broadcasted to all other nodes in fiber ring network via hardware without CPU software intervention. Serial fiber link speed reaches 2.12 Gbaud, maximum burst data throughput up to 174 Mbyte/s, node-to-node transmission latency keeps within 500 ns for deterministic real-time operation. Network topology is fiber daisy-chain ring, supporting maximum 256 nodes in one RFM network; multimode fiber supports transmission distance up to 300 m, single-mode fiber option extends to 10 km. The board provides four independent network interrupt channels with 32-bit interrupt message, equipped with independent DMA controller for high-speed block data transmission. Supports 3.3 V /5 V PCI signal level, power is supplied entirely from PCI slot backplane. Onboard nonvolatile configuration memory stores node ID, fiber mode and interrupt parameters. Rugged industrial PCB design, widely used in gas/steam turbine distributed control, hardware-in-loop simulation, aerospace real-time test and high reliability industrial distributed data acquisition systems.

Working principle

Reflective memory hardware automatically synchronizes local memory content across all network nodes. When the host PCI processor writes data to onboard local SDRAM, FPGA controller captures the write operation and broadcasts corresponding data packets over fiber optic link to all other RFM nodes on the ring. Remote node hardware updates its local memory copy automatically, application software directly reads local memory to obtain latest shared data, no network protocol stack processing required. Network interrupt mechanism sends event notification between nodes to trigger synchronized control actions. DMA engine moves bulk data between host system memory and local RFM memory efficiently to reduce CPU load.

Onboard components

PCI interface controller, high-speed RFM FPGA chip, 128 MB parity SDRAM array, fiber optic transceiver module, independent DMA controller, four-channel network interrupt logic, nonvolatile configuration memory, PCI edge connector, front panel fiber duplex LC port, status LED array.

LED indicators

Front panel LED indicators for board power, fiber link status, network activity and communication fault alarm.

Hardware self-diagnosis

Visual inspection of PCB, solder joints, PCI edge connector and fiber port; onboard memory parity test; fiber link continuity self-test; interrupt channel verification; DMA transfer test; PCI bus read/write communication test.

Programming software

VMIC reflective memory driver library and configuration utility, supports Windows, VxWorks, Linux and QNX real-time operating systems; tool for node address assignment, fiber mode setup and network diagnostic monitoring.

Electrical & Process Parameters

Model: PCI-5565-010 Brand: VMIC Device type: PCI bus fiber optic reflective memory node card Bus standard: PCI 32/64 bit, 33 /66 MHz, 3.3 V / 5 V signaling Onboard memory: 128 MB parity SDRAM Fiber link rate: 2.12 Gbaud Max network nodes: 256 Max throughput: 174 Mbyte/s Latency: 450 ~ 500 ns node-to-node Control mode: Hardware automatic memory synchronization, DMA transfer, 4 channel network interrupt Power supply: Powered from PCI backplane Cooling: Convection cooling Protection: Memory parity error detection, fiber link fault monitoring, ESD protection Mounting: Standard PCI slot bracket mounting Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Standard full-height PCI bracket installation Protection class: PCB with optional conformal coating

Environmental

Operating temperature: 0℃ ~ +60℃ Storage temperature: -40℃ ~ +85℃ Ambient humidity: 5~95% non-condensing Certification: CE compliant Status: VMIC PCI fiber reflective memory real-time communication card

Installation

Follow ESD safety procedure before handling. Fully power off industrial PC chassis. Insert PCI-5565-010 into vacant PCI slot and fasten metal bracket. Connect duplex fiber cable between RFM nodes in ring topology. Power on PC, install VMIC RFM driver, assign unique node ID and run network link diagnostic before commissioning.

Interface

PCI gold finger edge connector, front panel duplex LC fiber port, network interrupt signal register.

Diagnostic

No link LED: fiber cable damage, transceiver fault or wrong fiber transmit/receive wiring. Memory parity error: onboard SDRAM failure. Inter-node data out of sync: incorrect node ID configuration or ring break. DMA transfer abort: PCI bus resource conflict.

Product Brief

VMIC PCI-5565-010 standard PCI reflective memory node card,128 MB parity SDRAM and 2.12 Gbaud fiber link,hardware deterministic memory synchronization for multi-node distributed real-time control and hardware-in-loop simulation systems.