The RadiSys EPC-6A is a high-performance VMEbus controller engineered for demanding industrial and embedded applications. Built on the Intel 486DX2 processor, it delivers significant performance gains over its EPC-6 predecessor while maintaining IBM PC architecture compatibility. The controller operates as a VMEbus master, slave, SLOT-1 system controller, or interrupt handler—offering flexible deployment across complex embedded systems.
Technical Specifications
• Processor: Intel 486DX2 CPU at 66 MHz internal clock speed; 33 MHz external bus speed
• Memory: 1 MB or 4 MB dual-ported DRAM; 1 MB application flash memory; 8 KB on-chip cache
• System Controller: RadiSys R400EX single-chip integration
• Serial Interfaces: Two PC-compatible serial ports with 16-byte FIFO
• Expansion: One EXM expansion slot for application-specific customization
• ROM: PC-compatible BIOS and Datalight ROM-DOS standard version
• VMEbus Clock: Drives 16 MHz SYSCLK signal when configured as system controller
– Key Features
• Configurable VMEbus roles: master, slave, SLOT-1 system controller, interrupter, or interrupt handler
• Automatic bus timeout detection and termination in system controller mode
• DOS-compatible solid-state disk via on-board nonvolatile flash memory
• Coprocessor slot for extended computational capability
• 1-slot VMEbus form factor; 3 lbs shipping weight
– VMEbus Capabilities
The EPC-6A supports full VMEbus master accesses and slave operations. When configured as SLOT-1 system controller, it generates the 16 MHz SYSCLK signal and manages bus timeout detection and termination. This multi-role flexibility enables deployment in master-slave architectures, distributed control systems, and interrupt-driven applications.
– Compatibility & Integration
PC-compatible BIOS and ROM-DOS enable straightforward application porting from standard x86 environments. The EXM expansion module slot accommodates custom I/O interfaces tailored to specific system requirements. IBM PC architecture alignment simplifies integration into mixed-platform embedded systems requiring VMEbus connectivity.
