problem 1:

Elucidate Timer, interrupts in 8051 with simple programs

problem 2:

Illustrate out the working principle of programmable DMA controller with the use of neat sketch.

problem 3:

With the use of neat block diagram, demonstrate the operation of keyboard / Display controller.

problem 4:

With the use of neat diagram describe the ADC interface to microprocessor.

problem 5:

prepare down an assembly program in the 8051 to rotate the stepper motor in clock wise and anti clockwise direction.