Description
Motorola MVME258
Technical Specifications
- Microprocessor: PowerPC 604e.
- Clock Speed: 250 MHz.
- Memory: 128 MB DRAM with ECC.
- Storage: 8 MB Flash, 512 KB NVRAM.
Functional Features
- High-Performance Core: The 604e architecture offers advanced branch prediction and out-of-order execution.
- Large Memory Footprint: Supports up to 128 MB of ECC RAM for complex applications.
- Full System Controller: Capable of managing VME bus arbitration, interrupts, and DMA.
- Rich I/O: Dual Ethernet, multiple serial ports, SCSI, and USB.
Application Scenarios
Deployed in aerospace testing, radar signal processing, medical imaging, and high-end industrial automation.
Performance Parameters
- VME Bus: Supports A24/A32 addressing and D32/D16 transfers.
- Network: Dual 10/100Base-T Ethernet ports.
- Timers: Multiple system timers and hardware watchdog.
Material Composition
Multi-layer industrial PCB with high-reliability PowerPC processors and industrial-grade peripheral chips.
Structural Characteristics
Standard 6U Eurocard VME size. Front panel includes status LEDs and ABORT/RESET switches.
Working Principle
The system executes firmware monitor routines upon power-up, performs hardware self-tests, and loads the operating system. The processor communicates with external I/O modules via the VME bus.
Installation Requirements
Must be inserted into a 6U VME chassis backplane. Ensure P1 and P2 connectors are fully aligned and locked.
Usage Precautions
Never hot-swap the board. Regularly check NVRAM battery voltage. Verify firmware configuration if boot failures occur.
