This board is a digital output board. It has an 8-digit LED hexadecimal display and a 32-bit LED binary display. The board accepts byte, word, and long-word data and all data written to it is latched and presented visually on the two displays in both hexadecimal and binary.

The board base address can be set to any one of the 256 64K pages addressable by the 68000 via DIP switches.

The 8-digit LED hexadecimal display is made up of four pairs of digits, associated with each digit pair is an 8-bit LED binary display. The digit pairs and associated binary displays are addressed as follows:

This board can be extremely useful for program debugging purposes, especially when no other output device is available. The contents of a 68000 register or memory location can be written to the board for visual validation by the simple addition of one extra line of source code - a standard 68000 MOVE instruction is all that is required with the destination operand set to the base address of this board.