Emerson / Motorola MVME147-013 25MHz, 16MB Single Board Computer

The Emerson/Motorola MVME147-013 is a single-height 6U VMEbus single-board computer built around the Motorola MC68030 32-bit microprocessor running at 25 MHz. Engineered for industrial, embedded, and real-time applications, this SBC integrates on-chip instruction and data cache, memory management unit (MMU), and a complete suite of I/O controllers—eliminating the need for auxiliary VMEbus modules and reducing overall system cost.

## Technical Specifications

**Processor & Memory**
• Motorola MC68030 enhanced 32-bit microprocessor at 25 MHz
• On-chip cache delivering 20–40% efficiency gain
• Memory Management Unit (MMU) for virtual memory and software protection
• 16 MB DRAM (expandable via SIMMs)
• Four 32-pin EPROM sockets for 1M × 8 devices (128 KB–512 KB typical)
• Optional Intel MC68882 floating-point co-processor

**VMEbus & System Interface**
• ANSI/VITA 1-1994 VME64 (IEEE STD 1014) compliant
• 16-bit or 32-bit backplane support
• MVME6000AC or VMEchip ASIC controller
• System Controller or Non-Master operation capable

**Integrated I/O & Connectivity**
• Four EIA-232-D serial ports (85C30/8530 controllers)
• 10 Mb Ethernet MAC (AMD AM7990 Lance) with Intel LXT901 SIA
• Narrow SE SCSI interface (WD33C93B controller) with available firmware
• 8-bit bidirectional parallel port via Programmable Channel Controller (PCC) ASIC

**Timers & Real-Time Functions**
• MK48T02 Non-Volatile RAM and real-time clock
• Two 16-bit system timers/counters
• One watchdog timer
• 4K × 8 NVRAM with battery-backed time-of-day clock

**Physical Characteristics**
• Dimensions: 233.4 mm H × 160.0 mm D × 19.8 mm W
• Front panel height: 261.8 mm
• Single-height 6U VME form factor

## Key Features

• Integrated Programmable Channel Controller (PCC) and General Control Chip (GCC) ASICs minimize external glue logic
• On-board Ethernet, SCSI, and four serial ports reduce expansion slot dependencies
• Non-volatile clock and NVRAM preserve system state during power loss
• Flexible memory configuration supporting both 16 MHz and 25 MHz access timing

## Typical Applications

Data acquisition systems, industrial control platforms, real-time communication interfaces, and embedded monitoring solutions requiring deterministic performance and integrated I/O density.

## Compatibility & Integration

Full VME64 compliance enables deployment in heterogeneous backplane environments. Integrated Ethernet and SCSI eliminate discrete interface cards, streamlining multi-node cluster and networked storage configurations.