Description
Motorola MVME187-031B
Technical Specifications
- Processor: MC88100 Microprocessor Unit (MPU) paired with two MC88200 or MC88204 Cache/Memory Management Units (CMMUs).
- Memory: Supports 4/8/16/32/64 MB of 32-bit DRAM with parity, or up to 256 MB with ECC protection.
- Storage: Four 44-pin PLCC ROM sockets and 8KB x 8 static RAM with battery backup.
- Debug Firmware: Features the 187Bug debug monitor firmware, providing over 50 debug commands, up/down load capabilities, and a one-line assembler/disassembler.
Functional Features
- Advanced Debugging: The 187Bug firmware accepts commands from the system console terminal and includes a comprehensive set of onboard diagnostics.
- Data Integrity: Supports ECC-protected memory to automatically detect and correct single-bit errors, ensuring system reliability.
- Network Ready: Integrated Ethernet interface utilizing the 82596CA controller, which accesses local RAM using DMA operations for high-speed data transfer.
Application Scenarios
Ideal for aerospace test equipment, defense radar systems, telecommunications switching, and high-end industrial automation control.
Performance Parameters
- Bus Interface: Full 32-bit VMEbus master/slave interface supporting A32/D32 transfers.
- Environmental Tolerance: Designed for continuous operation in harsh environments with excellent EMI/RFI immunity.
Material Composition
Constructed with multi-layer industrial-grade printed circuit boards (PCBs) and high-reliability surface-mount components.
Structural Characteristics
Standard 6U VME form factor featuring status LEDs for power, fail, stat, run, SCON, and SCSI, along with front-panel VME connectors.
Working Principle
Upon power-up, the 187Bug firmware initializes the MC88100 MPU and CMMUs. The system then maps the ROM sockets to the boot address space, allowing the processor to execute initialization code and load the real-time operating system.
Installation Requirements
Must be installed in a compliant VME chassis. Ensure proper alignment of the P1 and P2 backplane connectors and secure the front panel ejector handles.
Usage Precautions
Always observe strict electrostatic discharge (ESD) precautions when handling the board. Ensure adequate chassis airflow to prevent thermal throttling of the RISC processor.
