MOTOROLA MVME147SRF Industrial Embedded Main Controller
- Product Code: MVME147SRF
- Availability: In Stock
MOTOROLA MVME147SRF Double Height 6U VME Single Board Computer MC68030 Industrial Embedded Main Controller
Manufacturer: Motorola Computer Group, later Emerson Embedded Computing
Model: MVME147SRF (SRF = Special Rugged Filtered variant, optimized EMI & signal timing)
Product Type: Double-height 6U VMEbus master/slave single board computer, classic MVME147 legacy control series
Core Positioning: Rugged real-time control motherboard for industrial DCS, automatic test equipment, railway signal interlock, aerospace ground test systems
Core Function: VMEbus master control, floating-point operation via MC68882 coprocessor, multi-channel serial communication, DMA SCSI storage, parallel printer port, 4-channel IndustryPack I/O expansion, hardware watchdog, battery-backed RTC/NVRAM, complete VME interrupt management, reinforced anti-interference circuit design for high EMI cabinet environments
1. Product Overview
MVME147SRF is a double-height 6U VME single board computer built around Motorola MC68030 32-bit microprocessor operating at 16MHz, matched with MC68882 floating-point coprocessor to support complex floating-point algorithm computation. As a special rugged filtered version of the standard MVME147 series, the SRF model adopts optimized hardware filtering circuit and enhanced conformal coating process to improve signal-to-noise ratio and anti-EMI capability, suitable for dense VME chassis with severe electromagnetic interference.
The board integrates parity-protected shared DRAM, battery-backed SRAM non-volatile memory and multi-ROM storage sockets. It carries dual EIA-232-D/422 serial ports, 10Base-T Ethernet, DMA-enabled SCSI-2 storage interface, Centronics parallel port and four independent IndustryPack mezzanine expansion slots for analog/digital I/O modules.
Onboard integrated ASIC provides dual tick timers, hardware watchdog auto-reset circuit, battery-powered real-time clock and calendar, 4-level VME bus requester and 7-level maskable interrupt controller. It fully supports VMEbus Rev B/C/D A32/D32 master-slave dual operation, and can act as VME system controller coordinating with auxiliary I/O boards such as MVME705B.
Compatible with VxWorks, pSOS and other classic real-time operating systems, widely deployed as main control unit for thermal power, petrochemical DCS, aerospace ATE and railway signal interlock cabinets.
2. Complete Technical Specifications
• Main Processor: MC68030 16MHz 32-bit CPU with built-in instruction/data cache and PMMU memory management unit
• Floating-Point Coprocessor: MC68882 matched FPU for high-precision mathematical calculation
• DRAM Memory: Standard 8MB parity-protected shared DRAM, expandable to 16MB
• NVRAM & RTC: 512KB battery-backed SRAM for power-fail data retention, built-in time-of-day clock with backup lithium battery
• Firmware Storage: Four EPROM/EEPROM sockets for bootloader, diagnostic firmware and OS image storage
• VMEbus Standard: IEEE 1014 VME Rev B/C/D, A16/A24/A32 addressing, D08/D16/D32 data width, master/slave dual mode, system controller support
• Bus Arbitration: 4-level VME bus requester, 7 configurable VME IRQ interrupt levels with full mask control
• Serial Interfaces: 2 × EIA-232-D / EIA-422 multi-mode serial ports via front DB25 connectors
• Network Interface: 10Base-T Ethernet RJ45 port with 82596CA LAN controller
• Storage Interface: DMA-based SCSI-2 bus for external hard disk and tape storage expansion
• Auxiliary Port: Centronics compatible parallel printer port for local debugging output
• Expansion Slots: 4 × IndustryPack IP mezzanine carrier slots for analog input/output, digital I/O and fieldbus modules
• Timing & Safety: Dual 16-bit tick timers, hardware watchdog timer with automatic system reset on crash
• Power Consumption: Standard VME backplane +5VDC power input, typical power draw 14W, maximum 20W full load
• Operating Temperature: Industrial standard 0℃ ~ +70℃ forced air cooling; storage temperature -40℃ ~ +85℃
• Humidity Rating: 5% ~ 95% relative humidity non-condensing
• Mechanical Form Factor: Double-height 6U VME Eurocard, 160mm(H) × 320mm(D), weight approx 850g
• Surface Protection: IPC-CC-830 Class 3 reinforced conformal coating, gold-plated corrosion-resistant edge connectors
• Supported RTOS: VxWorks, pSOS+, VRTX, legacy Motorola real-time embedded systems
3. SRF Variant Exclusive Features
1. Special filtered signal circuit design, optimized hardware timing to reduce signal jitter and improve signal-to-noise ratio
2. Class 3 high-grade conformal coating, stronger resistance to chemical vapor, dust and damp industrial cabinet environments
3. Enhanced EMI suppression components on power and signal lines to adapt to high-density multi-card VME chassis with severe electromagnetic interference
4. Strengthened PCB ground isolation layout to eliminate internal ground loop interference inside the board
5. Extended component temperature screening process for stable long-term operation in continuous unattended control systems
4. Typical Application Scenarios
• Thermal power plant boiler & turbine VME distributed control main computing board
• Petrochemical refining Honeywell TDC3000 DCS cabinet main controller
• Aerospace automatic test equipment (ATE) real-time signal processing platform
• Railway signal interlock cabinet embedded real-time control unit
• Industrial motion control multi-axis positioning and data acquisition system
MOTOROLA / Emerson © MVME147SRF Double Height 6U VME Rugged Embedded Single Board Computer
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