hsabaghianb @ kashanu.ac.ir Microprocessors 1-17
The Input/Output (I/O) System
I/O is the link between the MPU and the outside world.
An input port is a circuit through which an external device can send signals (data?) to the MPU.
An output port is a circuit that allows the MPU to send signals (data?) to external devices.
I/O ports connect both digital and analogue devices by DAC and ADC