Emerson / Motorola / Force Computers SYS68K / IBC-20/1 High-Performance Controller Board

The Emerson / Motorola / Force Computers SYS68K / IBC-20/1 is a VMEbus controller board built around the Motorola MC68020 32-bit microprocessor running at 25.0 MHz. Purpose-built for real-time control and data acquisition in demanding industrial environments, this board combines efficient processing architecture with extensive memory options and on-board timing resources. The design supports floating-point coprocessor upgrades and modular expansion, making it suitable for systems requiring deterministic response and reliable non-volatile storage.

Technical Specifications

Processor: Motorola MC68020 32-bit microprocessor @ 25.0 MHz

Floating Point Coprocessor: Optional MC68882 upgrade supported

Shared Main Memory: Up to 4 MB static RAM accessible from VMEbus

System Memory Expansion: Up to 8 MB via IBC MOD-1 module with FLASH EPROM devices

Non-Volatile RAM: 128 KB Flash Memory (read/write)

Local SRAM: 32 KB with battery backup

DMA Controller: 32-bit architecture

Timers/Counters: Three 16-bit units

Real-Time Clock: Integrated calendar function

Gate Array: FORCE COMPUTERS FGA-002A

Key Features

Serial I/O debugging port for development and troubleshooting

Battery-backed local SRAM preserves critical data during power loss

FLXi/EAGLE module interface support for peripheral expansion

Modular memory architecture scales from 4 MB to 8 MB configurations

Typical Applications

VMEbus-based industrial control systems

Real-time data acquisition platforms

Embedded control requiring deterministic processing

Systems demanding extended non-volatile storage and calendar timekeeping

Compatibility & Integration Designed as a VMEbus board with standard backplane interface. Accepts IBC MOD-1 modules for memory expansion and integrates FLXi/EAGLE peripheral modules. MC68882 coprocessor installation available for floating-point computation acceleration.