Microprocessors And Micro Controllers Important 2 Marks Questions
1)
Differentiate between a microprocessor and a micro
controller
2)
Differentiate between a microprocessor and digital
signal processor
3)
List the internal registers in 8085 microprocessor and
their abbreviations and lengths.
4)
Describe the primary function of each register.
5)
List five levels of interrupts in 8085 microprocessor
with priority.
6)
Interface a key to SID pin of 8085 Microprocessor.
7)
Interface a LED to SOD pin of 8085 Microprocessor.
8)
In 8085 microprocessor which has higher the priority
NMI or DMA
9)
What are the differences between Memory mapped I/O and
I/O mapped I/O
10) What are the various registers in
8085?
11) In 8085 name the 16 bit registers?
12) What are the various flags used in
8085?
13) What is Stack Pointer?
14) What is Program counter?
15) Which Stack is used in 8085?
16) What happens when HLT instruction
is executed in processor?
17) What is meant by a bus?
18) What is Tri-state logic?
19) Give an example of one address
microprocessor?
20) In what way interrupts are
classified in 8085?
21) What is Hardware interrupts?
22) What is Software interrupts?
23) Which interrupt has the highest
priority?
24) Name 5 different addressing modes?
25) How many interrupts are there in
8085?
26) What is clock frequency for 8085
27) What is the RST for the TRAP?
28) In 8085 which is called as High
order / Low order Register?.
29) What are input & output
devices?
30) Can an RC circuit be used as clock
source for 8085? –
31) Why crystal is a preferred clock
source? –
32) Which interrupt is not
level-sensitive in 8085?
33) What does Quality factor mean? –
34) What are level-triggering
interrupt?
35) Write
an algorithm to convert BCD to Binary numbers. Write 8085 assembly program to
convert two digit BCD number to hexadecimal number
36) Write
an algorithm to convert Binary number to BCD number. Write 8085assembly program
to convert one byte Binary number to BCD.
37) Write
an algorithm to evaluate a factorial of an integer number N. Write an assembly program
using recursive procedure.
38) Write
an algorithm to find GCD of two numbers. Write an assembly program to find GCD
of two words.
39) Write
an algorithm and assembly program to sort the numbers in an array in descending
order using bubble sort method
40) Sketch
and explain the interface of 32K x 16 ROMs using a decoder in for 8085
