Motorola FLT-68K 用户手册

Motorola MC68000 microprocessor with 16-bit data bus and 24-bit address bus  

10MHz generated by a CMOS oscillator  

16K bytes fitted as standard, expandable to 256K bytes RAM 

User RAM Address Range: 400400h-403FFFh (400400h-43FFFFh when 

expanded)  

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  

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  

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  

Eight external user interrupt vectors, auto vectored interrupts, and eleven trap 

instructions available to the user  

Ten fault switches offer six open circuit and four short to ground faults 

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)  

Dimensions: 1575mm wide, 2230mm deep, 160mm high without case 

Weight: 1.41lb including case  

 

  

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.