Description
Motorola MVME187-033B
Technical Specifications
- Processor: MC88100 MPU with dual MC88204 CMMUs for enhanced memory management.
- Memory: Up to 64 MB of 32-bit DRAM with parity checking.
- Storage: 128KB Static RAM with optional battery backup for critical data retention.
Functional Features
- Real-Time Clock: Integrated time-of-day clock with battery backup ensures accurate timestamping across power cycles.
- Console Interface: Dedicated serial console port for 187Bug interaction and system debugging.
- Peripheral Control: PCCchip2 manages printer strobe signals and serial port timing autonomously.
Application Scenarios
Power grid monitoring, railway signaling control, and large-scale Distributed Control Systems (DCS).
Performance Parameters
- Bus Bandwidth: Maximizes VMEbus utilization through efficient DMA transfers.
- Memory Latency: Optimized DRAM refresh cycles to minimize CPU wait states.
Material Composition
Industrial-grade components rated for extended temperature ranges, ensuring stable operation in unconditioned environments.
Structural Characteristics
Standard 6U VME dimensions with clearly labeled front-panel connectors for easy field identification and maintenance.
Working Principle
The system boots from the EPROM sockets, initializes the PCCchip2 and VMEchip2 ASICs, and establishes memory maps before handing control to the application software.
Installation Requirements
Properly torque the front panel mounting screws to ensure a solid electrical ground connection to the chassis rails.
Usage Precautions
Periodically check the SRAM backup battery voltage. A failing battery can lead to corrupted system configuration or lost time-of-day data.
