The Emerson/Motorola MVME300A is a single-slot VMEbus module that interfaces VME systems with General Purpose Interface Bus (GPIB) instrumentation. It functions as a controller bridge, enabling command and data acquisition from GPIB-compatible devices within VME-based test, measurement, and industrial automation platforms.
## Technical Specifications
**GPIB Controller**
• Chipset: TMS9914ANL
• Interface: IEEE-488 standard GPIB devices
**VMEbus Interface**
• Standard: ANSI/IEEE 1014-1987 compliant
• Addressing modes: A16, A24, A32
• Data transfer modes: D8, D16, D32
• Supply voltages: 5.2 V, +12 V, -12 V (DC)
**Memory Architecture**
• Main memory: DRAM with parity or ECC protection; 2 MB to 32 MB capacity; 32-bit data bus
• Flash/firmware: 1 MB to 4 MB on-board
• NVRAM: 8 KB to 32 KB with battery backup
• Program storage: 512 KB to 2 MB socketed EPROM/Flash
**Core Processor**
• Type: 32-bit RISC processor (Motorola 68000-series or derivative)
• On-chip cache: Up to 8 KB instruction + 8 KB data
## Key Features
• Fail status LED indicator for module monitoring
• Front-panel DIP switch configuration
• Single VMEbus slot form factor
• Support for A16, A24, and A32 address modes
• Full D8, D16, D32 data path compatibility
## Typical Applications
Test and measurement system integration, industrial automation control platforms, research instrumentation networks, and legacy VMEbus-based test stations requiring GPIB device connectivity.
## Compatibility & Integration
Designed for VMEbus systems following ANSI/IEEE 1014-1987. Fully compatible with GPIB instruments adhering to IEEE-488 standard. Operates within VME architectures supporting specified DC voltage supplies.
