Emerson / Motorola MVME162-353 Embedded Controller

The Emerson/Motorola MVME162-353 is a 6U VMEbus single-board computer engineered for industrial embedded control and real-time processing. Built around the Motorola 68040 processor running at 25 MHz, it delivers deterministic performance for demanding applications requiring integrated I/O, memory management, and VME system control functionality.

## Technical Specifications

**Processor & Core Logic**
• Motorola 68040 at 25 MHz with Memory Management Unit (MMU) and Floating Point Unit (FPU)
• VMEchip2 ASIC controller supporting A16/A24/A32 addressing and D8/D16/D32 data widths
• VME D64 specification support with system controller capability

**Memory Architecture**
• 32 MB ECC DRAM (4 MB, 8 MB, or 16 MB parity-protected DRAM configurations available)
• 512 KB SRAM with battery backup
• 1 MB Flash memory for monitor, debugger, and user firmware
• 8K × 8 Non-Volatile RAM (NVRAM) with Thompson MK48T08 Time of Day clock and battery backup
• One 1 Mbit 32-pin PLCC EPROM socket

**I/O Interfaces**
• Two serial ports: console port (EIA-232-D DTE) and user-configurable second port (EIA-232-D or EIA-530 DTE/DCE). Zilog Z85230 controller; 38.4 kbps maximum baud rate; RJ-45 connectors
• Optional Intel 82596CA Ethernet controller with DB-15 connector
• Optional NCR53C710 narrow SE SCSI bus controller; 32-bit local bus burst DMA; 68-pin connector
• Four MVIP IndustryPack interfaces supporting single or double-width modules with one DMA channel per port; 50-pin connectors
• 8-bit bidirectional parallel interface via Programmable Channel Controller (PCC2 ASIC)
• Six 32-bit timers (four without VMEbus) and watchdog timer

**Power Requirements**
• +5 V (± 5%): 3.5 A typical, 4.5 A maximum
• +12 Vdc (± 5%): 100 mA maximum
• −12 Vdc (± 5%): 100 mA maximum

**Physical Dimensions**
• Double-high VME form factor: 233.4 mm height × 160.0 mm depth × 19.8 mm width
• Front panel height: 261.8 mm

## Key Features

• 32-bit data bus with 32-bit burst DMA capability
• Multiple I/O expansion via IndustryPack slots with dedicated DMA channels
• Battery-backed SRAM and NVRAM for persistent real-time clock and data retention
• Flexible memory hierarchy supporting ECC protection and firmware options

## Typical Applications

Industrial control systems, real-time process automation, measurement and test platforms, and VME-based data acquisition requiring integrated serial, Ethernet, and SCSI connectivity.

## Compatibility & Integration

Full VME specification compliance enables integration into existing backplane systems. Optional Ethernet and SCSI controllers provide external device connectivity. IndustryPack interface accommodates application-specific I/O expansion modules.