VMIC 5530M 332-000131-000 Reflective Memory Board

Module Feature

5530M (PN:332-000131-000) is a double-slot 6U VMEbus reflective memory board developed by VMIC,compatible with VMIPCI‑5565,VMIPMC‑5565 and other 5565 family reflective memory nodes,can build mixed VME/PCI/PMC ring network. It adopts VME64 bus interface,supporting A16/A24/A32 addressing and D08/D16/D32,BLT,MBLT64 block transfer modes,can work as VME slave or VME system controller. Onboard high-speed SDRAM acts as shared reflective memory,configurable memory size supports 128 MB / 256 MB. Duplex fiber interface works at 2.12 Gbaud serial rate,multimode fiber max distance 300 m,single-mode fiber extends transmission distance up to 10 km. One fiber ring can contain up to 256 independent nodes. Once host writes data to local onboard memory,hardware automatically replicates data to all other nodes on fiber ring without CPU protocol stack overhead. Dual independent DMA channels realize bulk high-speed data transmission to reduce host CPU load. Programmable network interrupt function allows one node to send event interrupt trigger to remote nodes. Built-in CRC error detection and BIT diagnostic circuit continuously monitors fiber link status,memory parity error and data integrity,latches fault information in status register. Node bypass relay keeps ring network running normally when 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,the onboard memory of 5530M appears as standard physical memory address space. When VME master writes data to this memory region,dedicated reflective memory ASIC captures write operation,packages data and broadcasts over fiber ring to every node on the network. Hardware on remote nodes automatically refresh local shared memory copy. No TCP/IP protocol stack is required;all data synchronization is completed by dedicated hardware to realize ultra-low deterministic latency. Interrupt message channel realizes cross-node event notification. BIT circuit detects optical signal loss and CRC check 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 fiber transceiver module,128/256 MB SDRAM array,dual DMA controller,CRC error detection logic,programmable network interrupt circuit,node bypass relay,nonvolatile EEPROM for node ID storage,SC fiber optical port,VME J1/J2 edge connector,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,QNX and Windows operating systems;software tool for memory mapping,unique node ID assignment,interrupt configuration and fault log reading.

Electrical & Process Parameters

Model: 5530M 332-000131-000 Brand: VMIC Device type: Double-slot 6U VMEbus fiber optic reflective memory node board 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 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,network 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 VME fiber reflective memory board

Installation

Follow ESD safety procedure before handling.Fully power off VME chassis.Insert 5530M 332-000131-000 into vacant double-height 6U VME slot and lock front panel ejector latches.Connect duplex fiber cable with SC connector 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 5530M 332-000131-000 double height 6U VME fiber reflective memory board,with 2.12 Gbaud 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.