MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -Side of the interface which connects to the computer has bus signals for: Address, Data Control Side of the interface which connects to the I/O device has: Datapath and associated controls to transfer data between the interface and the I/O device. This side is called as a “port”.

Detailed explanation-2: -An interface circuit is a signal conditioning circuit used to bring signal from the sensor up to the format that is compatible with the load device.

Detailed explanation-3: -An interface circuit ensures the translation of an analog to a digital voltage. Sensors transmit a voltage with a low current. The interface circuit converts the voltage into a digital value (0 or 1). The current is low with a sensor signal; Actuators require a higher amperage.

Detailed explanation-4: -Input interface circuits connect electronic circuits such as op-amps, logic gates, etc. to the outside world expanding its capabilities. Electronic circuits amplify, buffer or process signals from sensors or switches as input information or to control lamps, relays or actuators for output control.