This CPU-40B board is a high performance single board computer based on the 68040 microprocessor and the
VMEbus. The board incorporates a modular I/O subsystem which provides a high degree of flexibility for
a wide variety of applications. The CPU board can be used with or without an I/O subsystem, called an
“EAGLE” module.
The board is able to hold a RAM Module which can be DRAM (CPU-40) or SRAM (CPU-41) based.
The CPU-40/41 family design utilizes all of the features of the powerful FORCE Gate Array (FGA-002).
Among its features is a 32-bit DMA controller which supports local (shared) memory, VMEbus and I/O data
transfers for maximum performance, parallel real time operation and responsiveness.
The EAGLE modules are installed on the CPU board via the FLXi (FORCE Local eXpansion interface). This
provides a full 32-bit interface between the base board and the EAGLE module I/O subsystem, providing
a range of I/O options.
Four multiprotocol serial I/O channels, a parallel I/O channel and a Real Time Clock with on-board battery
backup are installed on the base board which, in combination with EAGLE modules, make the CPU board
a true single board computer system.
A broad range of operating systems and kernels is available for the CPU board. However, as with all
FORCE COMPUTERS’ CPU cards, VMEPROM firmware is provided with the board at no extra cost.
VMEPROM is a Real Time Kernel and is installed on the CPU board in the two 16-bit wide EPROM sockets,
which results in a 32-bit wide System EPROM area. This ensures that the board is supplied ready to use.