Product Short Description
Product Name
VMEbus Single Board Computer, Model MVME147-013
Product Introduction
MVME147-013 is a classic 32-bit VMEbus single-board computer (SBC) manufactured by Motorola, belonging to the MVME147 hardware family. Widely deployed as embedded industrial controller for legacy VME-based industrial control, military and transportation automation systems.
Description
Technical Specifications & Performance Parameters
- Main Processor: Motorola MC68030 CPU @ 25 MHz (32-bit architecture with integrated MMU)
- Floating Point Coprocessor: MC68882 FPU on-board
- Memory: 8 MB soldered DRAM; 512 KB EPROM boot firmware; 4 KB lithium battery-backed CMOS SRAM
- VMEbus Interface: Compliant VMEbus Rev C, A32/D32, supports VME master, slave and system controller function
- VME Maximum Data Transfer Rate: 10 MB/s
- On-board I/O Interfaces
- 4 × EIA‑232‑D serial DB9 ports
- 1 × Centronics parallel printer port
- 1 × AUI 10 Mbps Ethernet port
- SCSI controller with DMA capability
- Timer Resources: Dual 16-bit tick timers, hardware watchdog timer, battery-backed real-time clock calendar
- Power Consumption: +5 VDC @ 2.2 A
- Operating Temperature: 0 °C ~ +65 °C
- Storage Temperature: -40 °C ~ +85 °C
Function Features
- Complete VMEbus master/slave operation, able to control other peripheral VME modules in the chassis
- Hardware watchdog timer for automatic system reset upon program crash
- Multiple serial communication channels for connecting field serial instruments and operator terminals
- Supports embedded real-time operating systems: VxWorks, OS‑9, pSOS
- Front panel status LEDs: SCON, RUN, FAIL, STATUS; hardware RESET and ABORT pushbuttons
- Self-test power-on diagnostics executed automatically during startup
Working Principle
The MC68030 processor executes embedded control software stored in EPROM. It accesses VMEbus backplane to communicate with other VME I/O, communication and analog modules. On-board serial, Ethernet and SCSI interfaces provide external data connection channels for peripheral equipment. Battery-backed SRAM retains configuration parameters and real-time clock data when main power is removed.
Material Composition & Structural Features
- Standard 6U Eurocard VME form factor printed circuit board
- Gold-plated VME backplane connector at rear edge
- Front panel equipped with I/O connectors, status LED and manual reset switches
- Multi-layer industrial PCB with through-hole and surface mount components
- On-board replaceable lithium battery for SRAM and RTC backup power
Application Scenarios
Legacy power plant DCS control racks, railway signal control systems, shipboard automation equipment, industrial test platforms, military embedded control systems, legacy VME equipment spare replacement.
Installation Requirements
- Install vertically inside standard 6U VME card cage chassis, ensure sufficient forced air cooling
- Properly terminate unused VMEbus signal lines following Motorola hardware manual
- Verify VMEbus system controller jumper configuration when multiple SBC exist in one chassis
Usage Notes
- The on-board lithium battery has limited service life; replace battery periodically to avoid loss of stored parameters
- Hot removal during system operation is prohibited; always execute controlled shutdown before extracting VME board
- Handle PCB with anti-static wrist strap to prevent electrostatic damage to integrated circuits
- This product is end-of-life original legacy hardware; firmware modification and component repair require specialized professional support
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