Motorola MVME2304-011 VME bus single-board computer (CPU control board)

Motorola MVME2304-011 VME Bus Single Board Computer CPU Main Control Board
I. Product Brief Description
Motorola (Motorola / Embedded Computing) MVME2300 series VME64 standard industrial embedded main control single board computer. MVME2304-011 is a fixed hardware configuration version; based on PowerPC architecture real-time processor, single-slot VME chassis installation, integrated memory, flash memory, network port, serial port, PMC expansion slot, targeted for demanding industrial, military, power station real-time control system main control computing; currently discontinued, mostly used for replacement of spare parts in old gas turbines, steam turbines, ship power, rail transit control systems.

 Key Technical Parameters Table
Parameter Item Technical Specifications
Core Processor PowerPC MPC604, with a clock frequency of 333 MHz; L1 cache: 32KB instructions + 32KB data
Built-in Memory 128MB ECC error-correcting DRAM (hardware standard configuration)
Storage Medium 4MB built-in flash memory (firmware/system program storage); 8KB NVRAM with battery backup real-time clock
Bus Standard VME64 (IEEE1014), compatible with traditional VME bus, can be used as master/slave bus controller
Expansion Slots 2-channel 32/64-bit PMC slot for layer-cake cards (IEEE P1386.1 standard)
Ethernet Interface 1 channel 10/100Mbps adaptive RJ45 Ethernet (DEC21140 chip)
Serial Port 2 channels asynchronous RS232 serial ports (PC16550 UART, for debugging/console communication)
Timing Unit 4 channels 32-bit general-purpose timer + 1 channel watchdog hardware timer
Interrupt Capability 7-level VME bus interrupt, supporting multi-level priority scheduling
Power Supply Requirements +5V DC backplane power supply, total system power consumption approximately 18W
Form Factor Specifications Standard 6U VME board size: 233.5mm×160mm
Operating Temperature 0℃ ~ +70℃ (industrial standard version); wide temperature model – 40℃~+85℃ (military customization)
Protection and Shock Resistance Circuit board three-proof coating, capable of withstanding vibration, shock, and electromagnetic interference
Firmware Function Built-in self-check diagnostic program, power-on hardware inspection, fault code indication
Battery Configuration Removable button battery, maintaining clock and NVRAM data storage

Core Product Performance
Real-time Embedded Computing Architecture
PowerPC streamlined instruction architecture compatible with real-time operating systems such as VxWorks and QNX, with millisecond-level task scheduling, perfectly meeting the hard real-time requirements of generator set speed regulation and closed-loop control of the unit protection; ECC memory error correction eliminates data calculation errors caused by electromagnetic interference in industrial environments.
Dual PMC Flexible Expansion
Two layer-cake expansion slots can be added with serial port cards, fieldbus cards, analog signal acquisition cards, communication protocol cards as needed, without replacing the main control board to expand I/O and bus interfaces, suitable for multiple scenarios of renovation needs.
Complete VME Bus Master Control Capability
Can be used as the controller of the entire VME chassis system, managing all I/O module bus scheduling of the backplane, supporting bus arbitration, address addressing, block data transmission, and backward compatibility with all old VME peripheral card components.
Comprehensive Hardware Monitoring and Fault Tolerance
Power-on full-channel self-check, running cycle hardware inspection; watchdog timer can automatically reset the entire machine in case of system deadlock; NVRAM permanently saves running parameters and fault event logs, data not lost in power failure.
Highly Reliable Industrial Durable Design
Military-grade PCB process, wide-temperature component selection, capable of long-term 24-hour uninterrupted operation; widely adaptable to cabin, power station, vehicle, and bumpy, humid, harsh working conditions.
Version Compatibility and Interchangeability
MVME2304 full suffix version hardware pins, chassis opening, bus definition are consistent, -011, -0111, -0141 and other versions can be directly interchanged and replaced.

 Application Domains
Power Generation Industry: GE, Woodward gas turbine / steam turbine Mark series control system main control computing unit; power station plant power monitoring, excitation system main control board;
Marine Engineering: Kongsberg, Norcontrol ship engine room automation, unmanned engine room monitoring and alarm system core controller; Rail Transit: Train traction control, signal interlocking system embedded main control;
Aerospace and Military Industry: Aircraft-mounted equipment, radar signal processing, vehicle-mounted field measurement and control equipment;
Industrial Automation: Large-scale metallurgical rolling lines, multi-axis motion control systems for heavy machinery with real-time main control;
Maintenance of old industrial control systems: Replacement of spare parts for a large number of VME-architecture DCS systems in global service for many years.

 List of Main Models in the MVME2300 Series
MVME2301: Entry-level compact version, MPC603 processor, small-capacity memory, basic data acquisition scenario
MVME2302: Standard general-purpose model, single PMC slot, standard industrial control标配
MVME2304 (This series)： High-end dual PMC slots， MPC604 high-frequency CPU， large-capacity ECC memory， main model for power stations / power systems (suffix numbers distinguish memory， firmware， and I/O configuration)
MVME2306： With SCSI storage interface， large-capacity flash memory， dedicated model for data recording
MVME2307/MVME2308： Wide-temperature military-hardened version， suitable for extremely low temperature environments