Description

MVME300A Technical Specifications

The MVME300A is a high-performance single-slot VMEbus module designed for embedded computing applications, featuring robust processing capabilities, flexible memory options, and comprehensive I/O interfaces. Below are its key technical parameters organized by functional category:

1. Core Processor

Processor Model: Integrates a high-performance 32-bit RISC processor (typically compatible with industry-standard embedded architectures, e.g., Motorola 68000-series derivatives for legacy compatibility or low-power RISC cores for modern efficiency)
Clock Speed: Configurable up to [XX MHz] (varies by specific hardware revision; optimized for balanced performance and power consumption)
On-Chip Cache: Optional L1 cache (e.g., 8KB instruction + 8KB data cache) for reduced memory latency and enhanced processing throughput

2. Memory Configuration

Main Memory:
- Supported Type: Parity-protected DRAM (for error detection) or ECC-protected DRAM (for error correction, optional on select variants)
- Capacity Range: 2MB to 32MB (expandable via on-board memory sockets or compatible mezzanine modules)
- Memory Interface: 32-bit wide data bus for high-speed memory access
Non-Volatile Memory:
- Flash Memory: 1MB to 4MB on-board Flash (for boot code, firmware, or persistent data storage)
- NVRAM (Non-Volatile RAM): 8KB to 32KB with battery backup (preserves critical configuration data and real-time clock settings during power loss)
ROM/Program Storage: 512KB to 2MB socketed EPROM/Flash (supports custom firmware or debug monitor installation)

3. VMEbus Interface

Bus Compatibility: Compliant with VMEbus Standards (e.g., ANSI/IEEE 1014-1987, VME64 optional on advanced variants)
Addressing Modes: Supports A16, A24, and A32 addressing (for compatibility with legacy and modern VMEbus peripherals)
Data Transfer Modes:
- Data Bus Width: D8, D16, and D32 (supports 8-bit, 16-bit, and 32-bit data transfers)
- Transfer Protocols: Supports single-cycle, block transfer (BLT), and multi-block transfer (MBLT) for high-throughput data exchange
Bus Role: Dual-role capability (configurable as VMEbus Master or Slave) for flexible system integration

4. I/O Interfaces

Serial Ports:
- Asynchronous Serial Ports: 2 to 4 EIA-232-D compatible ports (supports baud rates up to 115.2 kbps; configurable for DTE/DCE mode via jumpers)
- Synchronous Serial Ports: 1 to 2 optional sync/async ports (supports protocols like HDLC, SDLC; compatible with EIA-530 or V.35 via adapter modules)
Ethernet Interface: 10Base-T/100Base-TX Ethernet transceiver (optional on select variants; supports TCP/IP, UDP, and industrial Ethernet protocols; 32-bit DMA for low processor overhead)
SCSI Interface: 8-bit Fast SCSI-2 interface (optional; supports SCSI devices like hard drives, CD-ROMs, or tape drives; data transfer rates up to 10 MB/s)
Parallel Port: Centronics-compatible parallel port (for printers, external storage, or industrial I/O devices; supports bidirectional data transfer)
Timers & Watchdog:
- General-Purpose Timers: 4 x 32-bit programmable timers (for event scheduling, pulse generation, or interval measurement)
- Watchdog Timer: Programmable watchdog timer (resets the module on system hang; configurable timeout range from 1ms to 10s)

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