Emerson / Motorola MVME147S-1 MPU VME Module

The Emerson/Motorola MVME147S-1 is a 6U VMEbus single board computer built on the Motorola MC68030 microprocessor, designed for real-time control, data acquisition, and communication in industrial systems. This double-high VME module integrates a 32-bit processor with on-chip instruction and data cache, floating-point coprocessor support, and comprehensive I/O interfaces including serial, parallel, SCSI, and Ethernet connectivity. The MVME147S-1 functions as both master and slave on the VMEbus, supporting A32/D32 and A24/D16 address/data configurations with full system controller capabilities.

Technical Specifications Processor and Memory

Microprocessor: Motorola MC68030 enhanced 32-bit microprocessor with on-chip L1 cache (256B instruction / 256B data)

Clock Speed: 25 MHz (standard configuration)

Floating-Point Coprocessor: Motorola MC68882

DRAM: 4 MB with parity

Static RAM: 2 KB CMOS with battery backup

ROM Sockets: Four sockets for ROM/PROM/EPROM/EEPROM (16 bits wide) VMEbus Interface

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

Configuration: A32/D32 master/slave system controller with A24/D16 compatibility

Request/Interrupt: 4-level requester, 7-level interrupt handler

Controller Functions: Jumper-selectable system controller capability I/O and Connectivity

Serial Ports: Four RS-232C channels (8530 controller)

Parallel Port: Centronics-compatible

SCSI Interface: WD33C93B narrow SE SCSI bus controller with DMA

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

Real-Time Clock: Battery-backed calendar (MK48T02 Non-Volatile RAM/clock)

Timers: Two 16-bit tick timers, one watchdog timer

Physical Specifications

Form Factor: Double-high VME module (6U)

Height: 233.35 mm (9.187 inches)

Depth: 160.0 mm (6.299 inches)

Width: 19.8 mm (0.8 inches)

Operating Temperature: 0°C to 55°C

Key Features

256B/256B on-chip cache memory for instruction and data

VMEbus master/slave capability with selectable system controller function

Four independent serial communication channels

Narrow SCSI interface with dedicated DMA channel

10 Mb Ethernet MAC for network integration

Battery-backed non-volatile clock/calendar and SRAM for timing

Typical Applications Industrial automation controllers, energy management systems, transportation and vehicle control, real-time data acquisition platforms, distributed VMEbus system nodes.