MOTOROLA MVME162PA-344E: Configured VMEbus Computer
The MOTOROLA MVME162PA-344E is a specific configuration variant of the MVME162 series 6U VMEbus embedded computer. Built around the high-performance MC68040 microprocessor, this board delivers deterministic computing with defined memory and interface capabilities, serving as a reliable processing module in real-time industrial control, telecommunications, and legacy military systems.
A Defined Embedded Computing Solution
The MOTOROLA MVME162PA-344E represents a precise hardware configuration within the versatile MVME162 family. The suffix “PA-344E” designates a particular build with specified memory complement, firmware, and possibly feature set, providing a consistent and validated platform for system integration. This single board computer (SBC) is engineered to act as a dependable system controller or dedicated processing node within a VMEbus chassis. Its role is to provide the computational muscle for executing control algorithms, managing data acquisition, and handling communication protocols in environments where operational continuity and repeatable performance are critical.
Architecture and Configuration Highlights
This board retains the core, robust architecture of the MVME162 series, centered on the powerful 32-bit MC68040 CPU, which integrates a Memory Management Unit (MMU) and Floating-Point Unit (FPU). The “PA-344E” configuration specifies key parameters such as the amount of onboard DRAM and the type of boot PROM installed. The board’s design leverages integrated ASICs like the MECH2 for VMEbus interfacing and the MC2 for local bus and memory control, creating a efficient and stable system. It includes essential I/O and an IndustryPack site for expansion, all housed within the standard 6U VME form factor for broad mechanical compatibility.
MC68040 Microprocessor: A high-performance 32-bit CPU with integrated MMU and FPU, providing strong processing capabilities for complex real-time tasks.
Specific Memory Configuration: The “-344E” variant includes a defined amount of onboard DRAM and SRAM, tailored for predictable application performance.
VME64 System Controller: Provides full VME64 system controller functionality, managing backplane arbitration and supporting high-bandwidth data transfers (A32/A24/A16, D32/D16/D08).
Integrated Serial I/O: Features two serial communication channels (SCI) for system console, debugging, or device interfacing.
IndustryPack Expansion Site: Includes a site for an IndustryPack mezzanine module, enabling customizable I/O expansion for analog, digital, or communication interfaces.
Technical Specifications of the PA-344E Variant
The MVME162PA-344E is defined by its specific configuration. This typically includes an MC68040 processor at a standard clock speed (e.g., 25 MHz), a set amount of DRAM (commonly 4MB or 8MB as indicated by the suffix), and complementary SRAM. The board is populated with specific firmware in its EPROM/Flash memory. It supports two RS-232/422/485 capable serial ports and includes a real-time clock. As a 6U VME board, it operates from standard VMEbus power supplies and is designed for reliable operation in commercial or controlled industrial temperature environments.
Application in Legacy and Sustaining Systems
The MVME162PA-344E is deployed in applications that require a known, stable hardware specification. It is commonly found in legacy industrial automation systems controlling manufacturing processes, robotic workcells, and data acquisition networks. Within telecommunications, it has served in network multiplexers, legacy switching equipment, and base station controllers. Its deterministic performance also made it suitable for military and aerospace applications like test equipment, simulators, and vehicle control systems. This specific part number is crucial for maintenance and repair operations, ensuring a drop-in replacement that maintains system functionality and software compatibility.
Value for System Longevity and Support
The primary value of the MVME162PA-344E lies in its role as a sustaining component for long-lifecycle embedded systems. For organizations with significant investments in VME-based infrastructure, this exact board configuration enables continued operation, repair, and occasional upgrade without the need for costly system redesign or software porting. Its performance is well-understood and sufficient for the applications it was designed to run. The availability of this specific, genuine part number provides operational security and minimizes downtime for critical systems, protecting the functional and financial investment in the overall technological infrastructure.
Conclusion
The MOTOROLA MVME162PA-344E embedded computer board exemplifies the value of a specified, reliable computing module within the VME ecosystem. It offers a known quantity of processing power and I/O in a robust, standardized form factor. For engineers, system integrators, and maintenance professionals tasked with keeping critical real-time systems operational, this configured board provides a trusted and direct replacement solution. It underscores the importance of precise part management in sustaining the lifecycle of industrial, communication, and defense systems that continue to perform vital functions long after their initial deployment.
