Chapter 1: Product Description - RadiSys EPC - 6A Hardware Reference Manual

Chapter 1
Product Description
This manual contains the information you need to install and use the EPC-6A VMEbus
controller. Additional user and programmer manuals discuss the use of software packages
available with the EPC-6A.
The EPC-6A, a high-speed VMEbus module based on the Intel 80486DX2 processor, is a
redesign of the EPC6 VMEbus module which is based on Intel 80386SX processor.
You can use the EPC-6A to:
• Perform VMEbus master accesses.
• Act as a VMEbus slave (by having its dual-port DRAM mapped onto the VMEbus).
• Configure as the VMEbus SLOT-1 system controller.
• Act as an interrupter and interrupt handler.
The EPC-6A computer is also compatible with the IBM PC hardware architecture. The
standard version of the EPC-6A contains, in ROM, a PC-compatible BIOS and a
ROM-based version of Datalight ROM-DOS. The EPC-6A also includes on-board
nonvolatile flash memory supported as a DOS-compatible solid-state disk and file system.
You can store one or more embedded applications on the processor board and
automatically invoke them at system start-up.
The EPC-6A also includes one slot for an EXM expansion module. This allows some of
the I/O of the EPC-6A to be customized for a particular application.
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