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.