Motorola MC68000 - Manual (Page 4)

Specifications
CPU Motorola MC68000 microprocessor with 16-bit data bus and 24-bit address bus
System Clock 10MHz generated by a CMOS oscillator
RAM 16K bytes fitted as standard, expandable to 256K bytes RAM
User RAM Address Range: 400400h-403FFFh (400400h-43FFFFh when
expanded)
ROM Two 27256 32K EPROMs containing the 64K bytes monitor program,
expandable to 128K bytes with use of two 27512 64K EPROMs
Monitor EPROM Address Range: 000000h-00FFFFh (000000h-01FFFFh when
expanded)
Memory Expansion Sockets for additional RAM up to 256K bytes
On-board RAM Expansion Address Range: 440000h-47FFFFh
I/O Ports MC68230 Peripheral Interface/Timer (PI/T) chip providing 16 digital I/O lines
and a 24-bit wide counter with 5-bit prescaler, with full interrupt support
Input/Output Address Range: 800001h-800035h
MC68681 Dual Universal Asynchronous Receiver/Transmitter (DUART)
providing two full specification RS232 serial ports with full interrupt support
Input/Output Address Range: A00001h-A0001Fh
Three interrupt sources (link selectable)
Bus Expansion Connector offering access to all 64 lines of the 68000 CPU
Connectors Two male 9-way D-type RS232 serial ports, one for connecting with display
terminal or host PC, the other for connecting to a printer or for general use
40 way IDC header providing access to the MC68230 Peripheral Interface/Timer
(PI/T) digital input/output and counter/timer lines
64 way male DIN41612 bus expansion connector offering access to all
processor signals of the MC68000 CPU
Interrupts Eight external user interrupt vectors, auto vectored interrupts, and eleven trap
instructions available to the user
Switch Faults Ten fault switches offer six open circuit and four short to ground faults
Power Supply The board operates from a single 9V power supply and has a current
consumption of 700mA
A 110/120V 50/60Hz or 220/240V 50/60Hz power adapter is included (please
specify which is required when ordering)
Physical
Characteristics
Dimensions: 1575mm wide, 2230mm deep, 160mm high without case
Weight: 1.41lb including case
Applications Board
The applications board has been designed to aid the teaching of
microprocessor interfacing from simple switch and lamp
input/output through to more complex closed-loop and open-
loop control systems.
The new board layout enables students to easily understand
each experiment section as it is worked upon. The wide array of
features incorporated into the board include digital switches,
traffic light color LED displays, temperature, light, and optical
position/speed sensors, a heater, a DC motor, an LED bargraph,
and a potentiometer. A screw terminal is also provided for
external analog input.