Emerson / Motorola MVME147-011 25MHz, 4MB Single Board Computer

The Emerson/Motorola MVME147-011 is a VMEbus single-board computer built on the Motorola MC68030 32-bit microprocessor running at 25 MHz. This double-height 6U VME module delivers industrial-grade computation with integrated memory management, on-chip instruction/data cache, and optional floating-point coprocessor support. The board combines 4 MB DRAM, 4 KB SRAM, non-volatile timekeeping, and multi-protocol I/O - serial, parallel, SCSI, and Ethernet - in a compact form factor suitable for embedded systems requiring A32/D32 VMEbus master/slave operation and system controller functions.

Technical Specifications Processor & Memory

Motorola MC68030 microprocessor at 25 MHz with on-chip instruction and data cache (20–40% efficiency gain)

Integrated Memory Management Unit (MMU) for virtual memory and software protection

Optional Motorola MC68882 floating-point coprocessor at 25 MHz

4 MB shared DRAM

4 KB × 8 SRAM

MK48T08 non-volatile RAM with battery-backed time-of-day clock

Four 28/32-pin sockets for ROM/PROM/EPROM/EEPROM (16-bit wide) VMEbus Interface

A32/D32 master/slave operations with system controller capability

7-level interrupt support

ANSI/VITA 1-1994 VME64 (IEEE STD 1014) compliant

MVME6000AC VME bus controller Communications & I/O

Four EIA-232-D serial ports via 8530 serial controller

One 8-bit bidirectional parallel port (Centronics compatible)

WD33C93B narrow SE SCSI bus controller with DMA support

AMD AM7990 LANCE 10 Mb Ethernet MAC with Intel LXT901 Serial Interface Adapter

External I/O via P2-VME connector (compatible with MVME712 transition modules) On-Board Controllers

Watchdog timer

Programmable tick timers

General Control Chip (GCC) ASIC

Peripheral Channel Controller (PCC) ASIC

Key Features

147Bug on-board debugger and diagnostic firmware

Support for Motorola System V/68, OpenBSD/mvme68k, NetBSD/mvme68k, pSOS+, LynxOS, OS-9, VRTX-32, and VxWorks

Integrated development tools and UNIX SYSTEM V/68 driver packages

Double-height 6U form factor: 233.4 mm (H) × 160.0 mm (D)

Typical Applications Process control, data acquisition, embedded system controllers, and distributed VME-based instrumentation requiring 32-bit computation with real-time I/O handling.