VMIC PCI-5565 Reflective Memory Board

Module Feature

VMIC PCI-5565 is a standard full-height PCI form factor reflective memory interface board, compliant with PCI 2.2 specification, supporting 32/64 bit, 33/66 MHz PCI bus operation. It implements 2.12 Gbaud fiber serial link for reflective memory ring network, maximum up to 256 network nodes. Onboard 64 MB /128 MB parity protected SDRAM shared memory, two independent DMA channels for high speed data transfer. Supports automatic hardware data mirroring across all network nodes, with ultra-short node-to-node propagation latency. Built-in cross-node hardware interrupt mechanism for system event synchronization, with configurable byte order conversion for mixed-endian multi-platform systems. Rugged PCB design with EMC/ESD protection, widely used in real-time simulation, aerospace test, distributed motion control and high-reliability industrial control systems.

Working principle

The reflective memory technology creates unified shared memory space over fiber ring network. Once any node writes data to local onboard memory, hardware automatically broadcasts data packets to all nodes in the ring, updating local memory copies instantly. Host CPU accesses shared memory directly just like local RAM, without heavy network protocol stack overhead. Hardware interrupt signals can be transmitted between nodes for trigger and synchronization. Byte swap logic supports seamless data exchange between big-endian and little-endian processors.

Onboard components

Reflective memory controller, 2.12G serial optical transceiver, parity SDRAM memory chips, PCI bus interface chip, dual DMA controller, interrupt FPGA logic, front panel fiber connector, link status LED array, hardware configuration jumpers.

LED indicators

Front panel LED indicators for power supply, optical link ready, transmit activity, receive activity and network fault alarm.

Hardware self-diagnosis

Visual inspection of PCB, edge connector, fiber port and solder joints; board ID register readback and firmware verification; memory read/write parity test; optical link loopback test; multi-node data synchronization test; cross-node interrupt function verification.

Programming software

VMIC reflective memory driver and API library, supporting Windows, VxWorks, Linux, QNX real-time OS; configuration utility for node ID, memory size, interrupt mapping and byte order setup.

Electrical & Process Parameters

Model: PCI-5565 Device type: PCI reflective memory interface module Bus standard: PCI 2.2, 32/64 bit,33/66 MHz Memory: 64 MB /128 MB parity SDRAM Control mode: Hardware auto mirroring, DMA transfer, interrupt synchronization Power supply: +5 V / 3.3 V from PCI slot Cooling: Convection cooling Protection: Over current, ESD protection, data parity check Mounting: Standard full-height PCI metal bracket mounting Protection class: Conformal coating optional

Mechanical & Structure

Mounting: Standard full-height PCI board 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 module

Installation

Follow ESD safety procedure before handling. Power off host computer completely. Insert PCI-5565 into vacant PCI slot and fasten metal bracket screw. Connect multimode or single-mode fiber cable to front panel optical port. Set unique node ID by hardware jumper or software. Install VMIC RFM driver package, run link and multi-node communication test before formal operation.

Interface

PCI gold finger edge connector, fiber optic network port, interrupt and status signal pins.

Diagnostic

Board not detected: poor PCI slot contact, damaged edge connector, BIOS PCI resource conflict. Optical link down: dirty fiber connector, mismatched fiber media, wrong node ID, power abnormality. Data parity error: defective memory chip, unstable power supply, temperature over limit. Interrupt failure: incorrect interrupt mapping, driver/firmware mismatch.

Product Brief

PCI-5565 VMIC PCI reflective memory board,hardware level automatic shared memory synchronization via fiber ring,for distributed real-time simulation,aerospace test and high speed industrial embedded control systems.