VMIC VMIVME 5530M 332-000131-B Reflective Memory Board

Module Feature

VMIVME 5530M (PN:332-000131-B) is a double-slot 6U VMEbus fiber optic reflective memory node board developed by VMIC,fully compatible with VMIC 5565 family reflective memory nodes to build mixed VME / PCI / PMC fiber ring network. It adopts VME64 bus interface,supporting A16/A24/A32 addressing and D08/D16/D32,BLT,MBLT64 block transfer modes,can operate as VME slave or VME system controller. Onboard high-speed SDRAM acts as shared reflective memory,configurable capacity 128 MB / 256 MB. Duplex SC fiber interface works at 2.12 Gbaud serial rate;multimode fiber max transmission distance 300 m,single-mode fiber extends up to 10 km. When VME host writes data to local onboard memory,dedicated hardware automatically replicates data to all other ring nodes without protocol stack overhead. Dual independent DMA channels realize bulk high-speed data transmission to reduce host CPU load. Programmable cross-node interrupt supports event synchronization across different VME chassis. Built-in BIT diagnostic continuously monitors optical receive power,signal lock and power supply status,latches fault information in status register and triggers front panel alarm LED. Node bypass relay keeps fiber ring running normally if this single node fails. Rugged double Eurocard PCB with conformal coating,shock and vibration screened for power plant cabinet environment,widely used in gas/steam turbine distributed control,hardware-in-loop real-time simulation,aerospace test and semiconductor real-time control VME chassis.

Working principle

From VME host CPU perspective,onboard memory of VMIVME 5530M appears as standard physical memory address space. Once VME master writes data into this memory region,reflective memory ASIC captures write operation,packages data and broadcasts over fiber ring to every node on network. Hardware on remote nodes automatically refreshes local shared memory copy. Cross-node interrupt channel realizes event notification between nodes. BIT circuit detects optical signal loss and CRC error to judge communication quality. VME FPGA completes bus address decoding,PIO and DMA data handshake between VME host and reflective memory controller.

Onboard components

VME interface FPGA,reflective memory ASIC controller,2.12 Gbaud duplex SC fiber transceiver,128/256 MB SDRAM array,dual DMA controller,CRC error detection logic,cross-node interrupt circuit,node bypass relay,nonvolatile EEPROM for node ID storage,VME J1/J2 edge connector,front-panel SC fiber ports,multi-status LED array,manual reset switch.

LED indicators

Front panel LED indicators for board +5 V power,fiber link status,RFM network activity and communication fault alarm.

Hardware self-diagnosis

Visual inspection of PCB,components and solder joints;board ID register readback verification;onboard SDRAM full read/write test;fiber ring continuity test;CRC error injection verification;DMA block transfer test;VME A32/MBLT64 bus read/write communication test.

Programming software

VMIC reflective memory driver library and configuration utility,supports VxWorks,Linux and QNX real-time operating systems;software tool for memory mapping,unique node ID assignment,interrupt configuration and fault log reading.

Electrical & Process Parameters

Model: VMIVME 5530M 332-000131-B Brand: VMIC Device type: Double-slot 6U VMEbus fiber optic reflective memory node module Bus standard: VME64, A16/A24/A32 addressing, D08/D16/D32, MBLT64 block transfer Fiber baud rate: 2.12 Gbaud Onboard shared memory: 128 MB / 256 MB SDRAM configurable Max nodes per ring: 256 Fiber transmission distance: Multimode fiber up to 300 m; Single-mode fiber up to 10 km Control mode: Hardware automatic memory replication,dual DMA channels,cross-node interrupt,BIT continuous error monitoring,node bypass Power supply: +5 V from VME backplane Power consumption: 10–14 W typical Cooling: Convection cooling Protection: CRC data error detection,node bypass protection,ESD protection,overcurrent protection Mounting: Double-height 6U VME front panel ejector locking Protection class: PCB with optional conformal coating

Mechanical & Structure

Mounting: Double-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

Environmental

Operating temperature:0℃ ~ +65℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:20~80% non-condensing Certification: CE compliant Status: VMIC double slot 6U VME fiber reflective memory board

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert VMIVME 5530M 332-000131-B into vacant double-height 6U VME slot and lock front panel ejector latches.Connect duplex SC fiber cable to build ring topology.Power on chassis,install VMIC RFM driver,assign unique node ID and run BIT fiber diagnostic before commissioning.

Interface

VME J1/J2 backplane connector,front-panel duplex SC fiber port,network interrupt register pins,fault status signal pins.

Diagnostic

Board undetected: poor VME backplane contact,damaged edge connector or incorrect VME address configuration. Fiber link loss: broken fiber cable,reverse TX/RX fiber wiring or optical transceiver failure. Cross-node data desync: duplicate node ID or broken fiber ring. DMA transfer abort: VME bus resource conflict or DMA controller hardware fault.

Product Brief

VMIC VMIVME 5530M 332-000131-B double height 6U VME fiber reflective memory board,with 2.12 Gbaud SC fiber ring,hardware deterministic shared memory replication and node bypass function,supports mixed VME/PCI/PMC multi-node network,for gas/steam turbine distributed control and hardware-in-loop real-time simulation VME systems.