Rajiv Gandhi Proudyogiki Vishwavidyalaya 2008-6th Sem B.E Electrical and Electronics Engineering .(ester) , - Question Paper

CS-601
B.E.(Sixth Semester) EXAMINATION, Dec. 2008
(Common for CS,EC,EE,EI & IT Engg.)
MICROPROCESSOR AND INTERFACING
(601)

Note : Attempt any 5 ques.. All ques. carry equal marks.

1.(a) Enlist and compare the salient features of 80286,80386,8486 and pentium.
(b) discuss Register organisation of 8086 and discuss typical applications of every register.

2.(a) Draw and explain minimum mode 8086.
(b) discuss different addressing modes 8086 with suitable examples.

3.(a) discuss different modes of 8155 timer.
(b) discuss the features and operating modes of 8255.

4.(a) discuss with the aid of diagram interfacing of 8-bit ADC to microprocessor 8086.
(b) explain how 8254 is used ?
(i) to generate delay ?
(ii) to generate square wave ?

5.(a) Draw the architecture of PIC 8259 indicating various blocks and their interconnection.
discuss its operation.
(b) define the importance of Direct Memory Access(DMA) scheme. Draw the block diagram and
discuss the operation of 8257 DMA controller.

6.(a) discuss the block diagram and function of every block of 8251 USART.
(b) Specify the different kinds of bus standards. discuss RS-232C.

7.(a) discuss interrupts of 8051.
(b) define the pin signals of 8-bit microcontroller.

8. Write short notes on any 2 of the subsequent :
(a) Risc and Cisc processors
(b) Memory interfacing
(c) Modem
(d) Architecture of 8051

Earning:   Approval pending.