Differentiate between microprocessor and microcontroller.

What is RISC processor Give the advantages of RISC processor over CISC processor.

With the help of neat diagrams, discuss the elSe architectures.

Discuss the criteria for selecting a microcontroller for a particular application.

Describe the block diagram of 8051 microcontroller.

Compare and contrast the 8051 microcontroller with its family member microcontrollers.

In 8051 microcontrollers, discuss which is the best for a home development environment.

Why do we always write programs starting with ORG 0000

What is the result of the following code:

MOV R4, #25H
MOV 1FH
ADD R4

Find the value of the PSW register after the execution of the instructions
MOV #95
ADD #120

6. Show the stack and stack pointer for each line of the following program:
ORG 0
MOV SP, #70H
MOV R5, #66H
MOV R2, #7FH
MOV R7, #5DH
PUSH 5
PUSH 2
PUSH 7
CLR A
MOV R2,A
MOV R7,A
POP 7
POP 2
POP 5

The crystal frequency of 8051 microcontroller is 16 MHz. Determine the period of machine cycle.

Describe the data types of C for 8051 microcontroller.

8. Assume that XTAL 11·0592 MHz. What value do we need to load into the timer's registers if we want to have a time delay of 5 ms (milliseconds) Write the program for timer to create a pulse width of 5 ms.

Write the advantages of serial communication over parallel communication.

Write a program to transfer a letter serially at 9,600 baud continuously and also send a letter through port which is connected to a display device.

10.(a) How does the busy flag aid in making the LCD program more efficient?

Write the steps to identify the key pressed.