MOTOROLA MVME162-522A 01-W3960B/61C: Configured VMEbus Computer
The MOTOROLA MVME162-522A, identified by part number 01-W3960B/61C, is a configured variant of the renowned MVME162 embedded computer board. Centered on a powerful MC68040 microprocessor, it delivers reliable, real-time computing performance for critical applications in industrial automation, telecommunications, and defense within the robust VMEbus architecture.
A Defined Solution for Critical Embedded Systems
The MOTOROLA MVME162-522A (01-W3960B/61C) represents a specific, factory-configured iteration of the flexible MVME162 platform. This single-board computer (SBC) is engineered to serve as a deterministic and powerful system controller in environments where operational continuity is non-negotiable. The part number denotes a particular build with defined memory complement and feature set, providing a consistent and validated hardware baseline for system integrators. It leverages the full capabilities of the VMEbus backplane, acting as both a high-performance compute node and, typically, the system controller for the entire VME chassis, managing arbitration and data transfers across the parallel bus.
Board Architecture and Configuration Details
This model retains the core, proven architecture of the MVME162 series while delivering a specific configuration. The heart of the board is the MC68040 32-bit microprocessor, which integrates a Memory Management Unit (MMU) and Floating-Point Unit (FPU) to handle complex computations and real-time operating systems efficiently. The “-522A” designation and the 01-W3960B/61C part number typically indicate a board populated with a defined amount of DRAM (e.g., 16MB or 32MB), along with standard SRAM and Flash/EPROM for boot firmware and non-volatile storage. Key integrated circuits like the MECH2 (VMEbus interface) and MC2 (local bus/memory controller) ensure seamless data flow and system stability.
MC68040 Processor: High-performance 32-bit CPU with on-chip MMU and FPU, optimized for real-time multitasking.
Substantial Onboard DRAM: Configured with a significant amount of dynamic RAM for application and data space, supporting demanding software.
VME64 System Controller: Provides full VME system controller functionality with support for A32/A24/A16 addressing and D32/D16/D08 data transfers, maximizing backplane bandwidth.
Integrated Serial & Parallel I/O: Includes multiple asynchronous serial channels (SCI) and a parallel port for direct connection to consoles, terminals, or peripherals.
IndustryPack (IP) Expansion Site: Features a dedicated site for an IndustryPack mezzanine module, allowing for customized I/O expansion such as additional serial, analog, or digital interfaces.
Technical Specifications of this Configuration
The MVME162-522A, as identified by 01-W3960B/61C, ships with a precise hardware specification. This includes a specific CPU clock speed, a set amount of soldered or socketed DRAM, and a complementary amount of static RAM (SRAM), often battery-backed for critical data storage. The board includes Flash memory for the PPCBug firmware monitor and user code. It supports two RS-232/422/485 capable serial ports, a Centronics-style parallel port, and a real-time clock. As a 6U VME board, it operates from standard VME supply voltages and is designed for reliable operation in controlled industrial environments.
Application Environments and Legacy System Support
This specific board configuration is deployed in scenarios requiring a guaranteed hardware specification. It is commonly found in legacy industrial control systems overseeing manufacturing lines, robotic workcells, and complex process automation. Within telecommunications, it has been used in switching equipment, network management systems, and transmission devices. Its deterministic performance also made it suitable for military test equipment, simulation trainers, and avionics support systems. The defined part number is crucial for maintenance, repair, and overhaul (MRO) operations, ensuring a drop-in replacement that preserves system certification and software compatibility.
Value in System Longevity and Reliability
The primary value of the MVME162-522A 01-W3960B/61C lies in its role as a sustaining component for long-lifecycle systems. For organizations with capital investments in VME-based infrastructure, this exact board configuration allows for system extension and repair without costly software requalification or architectural changes. Its performance is sufficient to handle legacy applications while its robust construction ensures continued operation. The availability of this specific part number provides operational security, minimizing the risk of downtime for critical systems that may be in service for decades.
Conclusion
The MOTOROLA MVME162-522A (01-W3960B/61C) is more than a component; it is a defined computational asset for enduring embedded systems. It encapsulates the reliability and performance that characterized the peak of the VMEbus era. For engineers and procurement specialists responsible for the lifecycle management of critical real-time systems, securing this specific board configuration is a strategic decision that ensures continuity, preserves software investment, and upholds the operational integrity of vital industrial, communication, and defense applications for years to come.
