MOTOROLA MVME162-031 Embedded Computer Board​

Description

Product Overview: MOTOROLA MVME162-031 Embedded Computer Board​​

The MOTOROLA MVME162-031 is a high-performance, single-board computer (SBC) designed for the VMEbus (Versa Module Eurocard) architecture. As a specific configuration within the renowned MVME162 series, this model is engineered for critical embedded applications demanding high reliability, robust I/O capabilities, and real-time processing power in harsh industrial, military, and telecommunications environments.

The -031 suffix denotes a specific factory configuration, typically indicating a variant with a ​​MC68040 processor​​ and a particular mix of onboard memory and I/O, making it a powerful intelligent controller for complex systems.

​​Key Features & Benefits​​

​​High-Performance 68K-Series Processor:​​

• At its core, the board is built around a ​​Motorola MC68040​​ microprocessor. This is a 32-bit CISC CPU with an integrated floating-point unit (FPU) and memory management unit (MMU), delivering substantial processing power for complex control algorithms and real-time computing tasks.

​​VMEbus System Interface:​​

• Complies with the ​​VME64​​ standard, providing a high-bandwidth (40 MB/s), 32-bit parallel bus architecture. This allows the board to act as a master or system controller, interfacing with other VME boards for I/O expansion, data acquisition, and communication.

​​Comprehensive Onboard Memory:​​

• Features a specific amount of ​​DRAM​​ (likely 4MB or 8MB, as standard for the -031 config) soldered onto the board for reliability.
• Includes ​​512 KB of battery-backable SRAM​​ (using a BR-2032 battery), providing non-volatile storage for critical data, boot code, or real-time operating system kernels.

​​Extensive & Ruggedized I/O Connectivity:​​

• ​​SCSI Interface:​​ Integrates a NCR 53C710 controller for high-speed (Fast SCSI) communication with storage devices and peripherals.
• ​​Serial Channels:​​ RS-232/422/485 compatible ports for connecting terminals, modems, or other serial devices.
• ​​Parallel I/O:​​ Provides flexible interfacing for custom digital control and sensing applications.
• ​​Counter/Timers:​​ Essential for timing, event counting, and waveform generation.

​​Mezzanine Site (P2 Connector):​​

• Features a site for a ​​PCI Mezzanine Card (PMC)​​ or Motorola’s proprietary ​​IP Module​​. This allows for significant functional expansion such as additional Ethernet ports, fiber optic communication, or specialized digital I/O, tailoring the board to specific application needs.

​​Designed for Harsh Environments:​​

• Constructed with industrial-grade components and designed for reliable operation in environments with extended temperature ranges, shock, and vibration.
  

  MVME162-031

​​Technical Specifications (Representative for -031 Config)​​

​​Typical Applications​​

The MVME162-031 was designed for embedded applications where longevity and reliability are paramount. Typical use cases include:

• ​​Industrial Automation & Process Control:​​ Acting as a powerful PLC or machine controller in manufacturing systems.
• ​​Military & Aerospace Systems:​​ Ruggedized computing for vehicle management, radar, and communications equipment.
• ​​Telecommunications:​​ Base station control and network switching.
• ​​Transportation Systems:​​ Railway and traffic control systems.
• ​​Medical Imaging:​​ Controlling diagnostic equipment.

​​Legacy Status & Important Notes​​

• ​​End-of-Life Product:​​ The MOTOROLA MVME162 series, including the -031 model, is a legacy product that has been officially discontinued for many years. It is typically sourced from the secondary market or remaining stock.
• ​​Historical Context:​​ This board was a flagship product in the 1990s and early 2000s for VME systems. Motorola’s semiconductor and embedded computing divisions later became ​​Freescale Semiconductor​​, which was subsequently acquired by ​​NXP Semiconductors​​.
• ​​Considerations for Use:​​ Potential users must consider the availability of replacement boards, compatible software (e.g., VxWorks, LynxOS, pSOS), and technical support, which is now largely community-driven or provided by specialized refurbishment companies.
• ​​Configuration Code:​​ The -031is a Motorola factory configuration code specifying a particular set of features (CPU type/speed, memory size, etc.). For exact specifications, the official hardware manual for this specific code is essential.

​​Why Consider This Board?​​

For maintaining and servicing existing legacy systems, the MVME162-031 remains a critical component. Its robust design, proven architecture, and extensive I/O made it a workhorse of its era. For new designs, modern Single Board Computers (SBCs) with advanced architectures (e.g., ARM, x86) are strongly recommended.

​​Disclaimer:​​ This description is based on historical technical data sheets for the MVME162 series. The exact specifications for a specific MVME162-031 unit must be verified against its official Motorola/Freescale data sheet and hardware manual. This product is obsolete and not recommended for new design-ins.

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