Emerson / Motorola / Force Computers SYS68K CPU-40B/4-01 Single Board Computer

The Emerson / Motorola / Force Computers SYS68K CPU-40B/4-01 is a single-slot VME module single-board computer built around the Motorola 68040 32-bit microprocessor running at 25.0 MHz. Designed for embedded systems and industrial control applications, this VMEbus-compatible board delivers the processing power and memory architecture required for complex real-time tasks in harsh operating environments.

## Technical Specifications

• **Processor:** Motorola 68040, 32-bit, 25.0 MHz
• **Architecture:** VMEbus compatible; supports A32, A24, A16 address spaces with D8, D16, D32 data paths
• **Shared DRAM:** 4 Mbyte with burst READ/WRITE, parity generation and checking, 14µs asynchronous refresh
• **Local SRAM:** 128 Kbyte with on-board battery backup
• **Local FLASH EPROM:** 128 Kbyte with on-board programming support
• **System EPROM:** Two 40-pin sockets (32-bit data path); one dedicated boot socket
• **DMA Controller:** 32-bit FGA-002 for transfers to shared RAM, VMEbus memory, and I/O subsystems
• **Real-Time Clock:** 72423 RTC with on-board battery backup
• **Timers:** Two 24-bit with 5-bit prescalers; one 8-bit

## Key Features

• Four front-panel serial I/O interfaces (RS232/RS422/RS485 configurable) using 68562 DUSCC
• One 8-bit parallel interface with 4-bit handshake
• FLXi (FORCE Local eXpansion) interface for EAGLE-01C module support (SCSI, floppy, Ethernet)
• VMEbus RMW (Read-Modify-Write) and UAT capabilities
• VMEPROM Real-Time Kernel firmware included
• Single-slot form factor

## Typical Applications

Industrial control systems, embedded processing, VMEbus-based instrumentation, data acquisition, and real-time signal processing requiring 32-bit computation and multi-interface connectivity.

## Compatibility & Integration

Full VMEbus compliance enables integration into existing chassis environments. The FLXi expansion interface and modular memory architecture support field upgrades and custom I/O configurations.