Anna University Coimbatore 2009-5th Sem B.E Computer Science BE(CompEngg.)jn~ltion MICROPROCESSOR AND APPLICATIONS -EE- - Question Paper
B. E. (Comp. Engg.) Vth Semester Examjn~ltion
MICROPROCESSOR AND APPLICATIONS Paper-EE- ques. paper is attached along with this.
6.
354
B. E. (Comp. Engg.) Vth Semester Examjn~ltion MICROPROCESSOR AND APPLICATIONS Paper-EE-
303- B
Time allowed: 3 hours
Maximum Marks: 100
Note: Attempt any five questions.
L (a) Name one 4 bit, 16 bit, 32 bit and 64 bit /lP.
(b) Draw the block diagram of 8085 /lP. Explain the function of
each component.
(c) Why do we multiply lower 8 bit addres with data bus.
4 + 12 + 4
2. (a) Draw machine cycle timing diagram for IN Port no. instruction.
(b) What are the addressing modes and machine cycle used in the following instructions?
MVIM, data
PUSH PSW
DCRr
INXrp
F 10 + 10
3. Write assemhly l<Jilguage program using 8085 ~lP tor
(a) providing I ms time delay at J MHz clock uSlIlg software loops.
(b) Arrangin!! a dilU array in aSL-cndiII~' uni:-r. .... . _ v ~ ~ j . It) + 10
354--P2-(Q8) (in)
PT.O.
4. (a) What is interrupt? Explain interrupt structure of 8085 ~P.
(b) Write an interrupt service routine RST:;.5 which moves a 20 bytes block from one memory to another. 12 + 8
5. (a) Explain the architecture of 8255 PPI.
(b) How do you set control register for different modes? (c) Explain control word for setting PC2 = 1 and PC2 = O. 8+6+6
7. (a) Explain serial data transfer.
(b) Explain 8251 USART. How do you transfer data serially using it in asynchronous mode? :; + 15
7. Describe a microprocessor based scheme to measure and control temperature of ~ystem. Write necessary flow chart and give hardware of the scheme. 20
8. Write short note on any thrre : 2
(a) Comparsion of dilJercnt types of memory used 0
(b) 8259 block diagram
(c) DMA data transfn schemt,'
(c) Memory mapped and I/O mapped I/O schemes.
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| Earning: Approval pending. |
