Compare Microprocessors and Microcontrollers.
Draw the labelled functional block diagram of 8085 MP.
What is the need of ALE signal in 8085 microprocessor?
Differentiate between direct and indirect mode of instructions.
List register direct and register indirect instructions
Explain the timing diagram for LDA 2030H instruction.
How many machine cycles are needed to execute STA 2700? Explain.
Draw and explain the structure for address decoding of R/W memory with capacity of 1024 X 8.
Differentiate between Memory interfacing and I/O interfacing.
Explain the timing diagram for memory mapped I/O instruction.
Draw and explain register section of 8085 MP.
Explain following Arithmetic instructions:
DAD, ADD, ADC, ADI
Describe the use of LHLD and SHLD.
List register pairs of 8085 MP. What is the purpose of XCHG instruction?
WAP to add two 16 bit numbers using LHLD,SHLD and DAD instructions.
What will be the effect on contents after execution of CPI 8-bit? Which flags will get affected?
Write a program to generate a delay. Compute the value of counter for the same if delay is 100us. Assume system frequency = 1MHz.
How can we increase the delay value? Write sample programs for the same.
Write a description of STC and CMC. Draw the timing diagram for CMC.
What are the subroutines? Describe following subroutines: OUTPUT, CLEAR DISPLAY
Write and explain a logic for multiplication of a number by 2 using RAL.
Write a program to clear all the flags.
i. LXI SP, 2400H
ii. LXI H, 2030H
iii. LXI B, 2070H
iv. PUSH B
What will be the address where first value will be stored? Write the contents of 23FE?
Write down similarities/dissimilarities between PUSH/POP and CALL/RET.