Description
Motorola MVME117-4
Technical Specifications
- Microprocessor: Motorola MC68030 (32-bit).
- Coprocessor: MC68882 Floating Point Unit (optional).
- Memory: On-board DRAM with battery-backed SRAM support.
- Bus: VMEbus A24/A32, D8/D16/D32.
Functional Features
- Provides dual asynchronous serial ports (EIA-232-D).
- Supports SCSI-1 interface and optional Ethernet interface.
- Features VMEbus interrupter and system controller functions.
- Integrates a watchdog timer and real-time clock.
Application Scenarios
Widely used in traditional industrial process control, telecommunications switching systems, medical equipment, and legacy system maintenance requiring long-term stability.
Performance Parameters
- Supports clock frequencies up to 33 MHz or higher (depending on specific suffix).
- Features comprehensive memory management and MMU capabilities.
Material Composition
High-reliability industrial-grade PCB with impedance control and shielding design on critical signal lines.
Structural Characteristics
Standard 6U VME European card size, with debug ports and status LED indicators on the front panel.
Working Principle
The MC68030 processor accesses the VME bus via internal cache and external Bus Interface Unit (BIU), executing real-time operating systems like VxWorks or OS-9 to coordinate peripheral devices for data acquisition and control.
Installation Requirements
- Requires a dedicated MVME712 series transition module to bring out front-panel I/O.
- Ensure the backplane provides stable +5V power.
Usage Precautions
- Back up critical configuration data in SRAM before replacing the battery.
- Avoid operating without shielding in environments with strong electromagnetic interference.
