Motorola MVME3100 VMEbus Single Board

Manufacturer Background: Original Motorola Embedded Computing → Freescale → Emerson Network Power / Smart Embedded Computing; Legacy VME64 single-slot industrial CPU board, fully EOL discontinued, only refurbished/spare stock available

Part Number: MVME3100 (VME single board computer, VITA 1.5 2eSST high-speed VME master)

Product Type: Single-slot VME64/VME64x single-board industrial real-time controller; PowerPC e500 RISC CPU, integrated VME bridge, multi-Gigabit Ethernet, PMC-X expansion, front/rear I/O via MVME721 RTM rear transition module

Matching Platform: VMEbus industrial control chassis/backplane, Foxboro I/A, Emerson Ovation DCS, accelerator physics control, defense/aerospace, medical equipment, power plant real-time control systems; compatible with legacy MVME6100/MVME5500 VME systems

Core Hardware Overview: 1. CPU: Freescale MPC8540 PowerQUICC III SoC (e500 core, 667MHz / 833MHz options, 256KB integrated L2 cache) 2. Memory: Single SODIMM socket, up to 512MB DDR333 ECC SDRAM; onboard Flash (64/128/256MB) for firmware/OS boot 3. VME Interface: Tsi148 PCI-X to VME bridge, VME64, VME64x, 2eSST 320MB/s high-speed block transfer 4. Network: 2×10/100/1000BASE-T Gigabit Ethernet + 1×10/100BASE-T Fast Ethernet 5. Expansion: Dual PMC-X mezzanine slots (33/66/100MHz PCI-X) for custom I/O, serial, analog, fiber modules 6. Local I/O: 5×serial UART (RS232/422/485), USB2.0, 4-channel SATA, I2C, watchdog timer, RTC, hardware interrupt controller 7. Mechanical: Single VME slot, front panel I/O headers; full rear I/O via MVME721 RTM transition card; low power <7W typical consumption 8. Software: Pre-built BSP for VxWorks, LynxOS, Linux; MOTLoad industrial boot firmware

1. Product Overview

MVME3100 is a mid-generation high-performance VMEbus single-board computer designed for mission-critical real-time industrial and embedded systems. It adopts the integrated MPC8540 PowerQUICC III SoC, combining PowerPC e500 core, memory controller, PCI-X, multi-port Ethernet and peripheral controllers on one chip to reduce board size, power consumption and electromagnetic interference. Compared with older MVME5100/MVME6100 series, MVME3100 supports the 2eSST high-speed VME protocol, boosting VME data throughput up to 320MB/s for large-scale I/O data acquisition and high-speed inter-board communication. Dual PMC-X expansion slots allow flexible addition of custom interfaces such as analog I/O, fiber optics, MIL-STD-1553, CAN bus, and serial communication modules without occupying extra VME slots. The board supports both front-panel direct I/O and full rear-panel I/O routing through the dedicated MVME721 RTM rear transition module, ideal for compact industrial cabinets where all wiring exits the chassis rear. ECC error-correcting memory eliminates single-bit memory corruption risks in long-term unattended operation, critical for power plant DCS, nuclear accelerator control, offshore hazardous zone automation and aerospace ground test systems. Operating temperature range -40℃ ~ +70℃, PCB with anti-salt/humidity conformal coating meets ISA G3 corrosive industrial environment standards. Motorola/Emerson ceased full production years ago; only surplus new and fully tested refurbished units circulate as spare parts for legacy VME control system maintenance and upgrade projects.