Description
Motorola MVME2700-4361
Technical Specifications
- Processor: PowerPC 750 32-bit RISC processor.
- Memory: 256MB ECC DRAM (featuring double-bit error detection and single-bit error correction).
- Cache: 32KB L1 and 1MB L2 cache.
- Storage: 8MB onboard flash and 1MB socketed flash.
- I/O Interfaces: Ethernet, SCSI-2, parallel port, keyboard/mouse, and floppy drive interface.
Functional Features
- Large-Capacity Memory Buffering: 256MB of RAM supports large database caching and smooth operation of complex graphical user interfaces.
- Comprehensive System Monitoring: Includes a watchdog timer, real-time clock (RTC), and Global Control/Status Register (GCSR) for multiprocessor communication.
- Flexible Transition Module Support: Compatible with MVME712M or MVME761 transition modules to provide rich front-panel I/O interfaces.
- High-Reliability Memory: ECC memory architecture effectively prevents bit flips caused by cosmic rays or electrical noise.
Application Scenarios
- Medical Imaging: Controls image reconstruction and real-time display in CT or MRI equipment.
- Semiconductor Manufacturing: Manages high-precision motion control and process recipe management in lithography or etching tools.
- Traffic Control: Handles radar data processing in air traffic control systems and railway signaling.
Performance Parameters
- Processor Frequency: Supports operating frequencies of 233 MHz, 266 MHz, or 366 MHz.
- Memory Bandwidth: Achieves enhanced data throughput through dual-interleaved access via the Falcon memory controller.
- Power Consumption: +5V typical current is 5.5A, with a maximum of 6.5A.
Material Composition
Utilizes high-quality FR-4 multi-layer PCBs, surface-mounted industrial-grade wide-temperature components, and includes heat sinks to assist in core chip cooling.
Structural Characteristics
- Dimensional Specifications: Height of 9.2 inches, depth of 10.3 inches with panel, and thickness of 0.8 inches.
- Expansion Capability: Occupies only a single VME slot even when a PMC module is installed.
- Interface Panel: Provides standard industrial connectors such as DB-9, HD-26, or RJ-45 depending on the paired transition module.
Working Principle
During system boot, the PPCBug firmware performs hardware self-tests and initializes the 256MB ECC DRAM. The operating system is then loaded, and the processor maps the VME address space to the local PCI bus via Tundra Universe or Raven bridge chips, enabling efficient access to external devices and memory.
Installation Requirements
- Cooling Airflow: Ensure chassis fans direct airflow straight across the board’s heat dissipation areas.
- Grounding: Ensure the VME chassis is properly grounded to guarantee signal integrity for Ethernet and serial communications.
- Transition Module Installation: If using an MVME761 transition module, ensure the P2 adapter is correctly installed to support 16-bit SCSI or PMC I/O.
Usage Precautions
- Memory Compatibility: Only Motorola-certified RAM200 series memory modules are permitted for upgrades.
- Electrostatic Discharge: High-density 256MB memory is highly sensitive to static; strict ESD compliance is mandatory during handling.
