Purbanchal University Old question Of microprocessor

Old Question Purbanchal University 2014  ,2013

Answer 5 Questions .. 

(a) -> 8 marks , (b,c) -> 4 marks Each 

Subject : Microprocessor 


1(a) Draw the timing diagram for memory write operation and explain it .
1(b) If a microprocessor is of 8 bit , what does it specify ? Write application of Microprocessor .
1(c)  Write down an assembly level program in 8085 that will count the odd numbers stored in location c000H And C0009h . Also store the count at E000h location.

2(a) What is interrupt ? Classify it on the basis of priority . Also mention its importance .

2(b) Explain about RS-232 c Physical layer standards with its application .
2(c) Write about the output Of the Following Program . 

Lxi sp 4400h
lxi b 1234h
lxi d 2678h
PUSH B
PUSH D
POP B
POP D
HLT

3(a) Draw the block diagram of 8086 microprocessor . Explain about Each Blocks .

3(b) What are the adressing modes of 8085 microprocessor ? Explain in brief .

3(c) Write an ALP in which there are 16 bit data and are stored in 2 tables starting at D000H  and E000H , 10 data in each table . Add corresponding data and store it in third table starting from F000H in 8085.

4(a) Draw the Block diagram of 8255a PPI and Explain about its different Modes of operation .

4(b) Iterface 1kb EEPROM with the microprocessor using 3x8 decoder . Find the address range .

4(c) Differentiate between 8085 and 8086 Microprocessor.

5(a) Write an ALP in 8085 that will arrange the 10 bits data stored from location D000H in descending order .

5(b) Write an ALP that will complement the contents of program status word (PSW) . 

5(c) What do You mean by i/o interface ? Explain About its types .

6(a) What do you Mean By assembler directive ? Explain about its types .

6(b) Explain about the importance of virtual Memory.
6(c) Write about the flag registers of 8086 Microprocessor .

The End And BEst of Luck ...

And of 2013 Here ,,,