VMIC VMIVME-7696 Single Board Computer

Module FeatureVMIC VMIVME-7696 is a double-slot 6U VMEbus Eurocard single board computer powered by Intel Pentium II processor, available in 333 MHz and 450 MHz versions with 512 KB L2 cache. It uses a 144-pin SODIMM socket supporting up to 512 MB SDRAM, equipped with 128 KB battery-backed nonvolatile SRAM for persistent configuration data storage after power loss. One PMC (PCI Mezzanine Card) expansion slot supports reflective memory or custom I/O mezzanine modules. Integrated 64-bit AGP SVGA graphics controller with 4 MB SGRAM video memory. Network interfaces include dual independent 10/100 Base-T fast Ethernet ports for redundant network operation. Onboard peripheral set includes two 16550-compatible RS232 serial ports, ECP/EPP enhanced parallel port, USB1.1 interface, PS/2 keyboard/mouse, real-time clock and built-in speaker. Storage controllers: Ultra-DMA-33 IDE for hard disk and floppy via P2 rear I/O; PCI Fast/Wide SCSI-2 (requires VMIACC-0561 P2 terminator card). Three programmable 32-bit timers and software-selectable watchdog timer, watchdog timeout can trigger NMI, VME SYSFAIL or hardware reset. Flash BIOS supports field firmware upgrade and remote Ethernet boot. Full VME64 compliance supporting A32/A24 addressing, D32/D16/BLT/MBLT block transfer modes. Rugged double Eurocard construction, widely used in turbine control, real-time simulation, aerospace test bench and legacy industrial VME chassis systems.

Working principlePentium II processor executes embedded operating system and user application code. PCI-to-VME bridge implements full VME64 master and slave functions for high-speed block data exchange with other VME modules. PMC connector expands system capability with mezzanine communication or signal acquisition boards. AGP graphics engine handles display output; dual Ethernet controllers manage redundant network transmission. Battery-backed SRAM retains critical setup parameters during power outage. Flash memory stores boot firmware and application images. Programmable watchdog timer triggers hardware reset or system fault signal when software lockup occurs to maintain system reliability. VME bus error handling logic monitors bus transactions and reports fault status via CSR register and front panel LEDs.

Onboard componentsIntel Pentium II CPU, 144-pin SODIMM socket, AGP SVGA video chip, dual 10/100 Ethernet PHY chips, dual-channel UART, EPP/ECP parallel port, Ultra-DMA33 IDE controller, Fast Wide SCSI-2 controller, 128 KB battery-backed SRAM, flash BIOS chip, triple programmable timer array, watchdog logic, PCI-VME bridge, PMC connector, VME J1/J2 transceivers, front panel I/O connectors, multi-status LED array, manual reset pushbutton.

LED indicatorsFront panel LED indicators for +5 V power supply, VME SYSFAIL fault, IDE storage activity and board status alarm.

Hardware self-diagnosisVisual inspection of PCB, front ejectors and solder joints; board ID register readback and firmware verification; memory read/write cyclic verification; VME A32/BLT/MBLT burst transfer test; Ethernet loopback test; NVRAM data retention test; timer and watchdog function validation.

Programming softwareSupports VxWorks, Linux, Windows NT/2000, QNX, Solaris embedded OS; VMIC VME device driver suite, BIOS configuration utility and dedicated board diagnostic firmware.

Electrical & Process ParametersModel: VMIVME-7696 Device type: Double-slot 6U VMEbus single board computer Bus standard: VME64, A32/A24 addressing, BLT / MBLT block transfer Processor: Intel Pentium II (333 / 450 MHz) Memory: Max 512 MB SDRAM, 128 KB battery-backed SRAM Expansion: One PMC mezzanine slot Control mode: VME master / slave operation, programmable watchdog, remote boot Power supply: +5 V, ±12 V from VME backplane Cooling: Forced air cooling, minimum 300 LFM airflow Protection: Over current, ESD protection, watchdog auto-reset, VME bus error detection Mounting: Double-height 6U VME front panel ejector locking Protection class: PCB with optional conformal coating

Mechanical & StructureMounting: Double-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

EnvironmentalOperating temperature: 0℃ ~ +55℃ (with specified forced cooling) Storage temperature: -40℃ ~ +85℃ Ambient humidity: 10~90% non-condensing Certification: CE compliant Status: VMIC double-height Pentium II VME64 single board computer

InstallationFollow ESD safety procedure before handling. Fully power off VME chassis. Insert VMIVME-7696 into vacant double-height 6U VME slot and lock front panel ejector latches. Connect front panel SVGA, Ethernet, serial, USB and PS/2 peripherals as required. Install optional P2 SCSI terminator card if SCSI interface is used. Power on chassis and enter BIOS to configure boot sequence, memory and watchdog parameters. Install OS and VMIC VME drivers, run full board diagnostic before commissioning.

InterfaceVME J1/J2 backplane connector, PMC mezzanine site, SVGA video, dual 10/100 RJ45 Ethernet, dual RS232 serial ports, parallel port, USB1.1, PS/2 keyboard/mouse, IDE / SCSI storage via P2 rear I/O, fault status signal pins.

DiagnosticBoard fails POST: faulty SODIMM memory, defective CPU chip, insufficient chassis airflow or abnormal backplane power. VME block transfer unstable: poor backplane contact, missing bus termination, PCI-VME bridge hardware fault. NVRAM data loss: backup battery depletion or SRAM chip failure. Ethernet link failure: damaged cable, PHY chip damage or duplex mismatch. Watchdog fails to trigger: wrong BIOS watchdog parameter setup.

Product BriefVMIVME-7696 VMIC double height 6U VME64 single board computer,Pentium II CPU,PMC expansion slot and dual fast Ethernet,for high-performance rugged embedded control,turbine safety control and real-time simulation VME chassis systems.