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B. Tech. (New Scheme) Examination, 2024
(Fourth Semester)
MICROPROCESSOR AND
MICROCONTROLLER
EL-405
Note : Q. No. 1 is compulsory. Attempt any two parts from remaining questions.
Write short answers of the following : 5x2=10
(a) Name the flags of 8086 and give their functions.
(b) List different data transfer schemes used in 8085.
(c) Give advanced features of 80386.
(d) What is the function of IC8212 ?
(e) Name SFRs used in 8051 for serial communication and give their function.
(a) Discuss the function of the following Pins 8085.
- (i) HOLD & HLDA
- (ii) INTR & INTA'
- (iii) SID & SOD
- (iv) X1 & X2
(b) Interface three memories of size 2KX8, 4KX8 and 8KX8 to 8085 and give their address range.
(c) Write a program for 8085 to find the largest number from the given series of 10 numbers stored in consecutive memory locations. 10
(a) Discuss the Internal architecture of 8086.
(b) Describe minimum and maximum mode of operation of 8086.
(c) Explain real and protected mode of operation used in memory Management. 10
(a) Discuss the advancement in Intel series processors (8086 onwards).
(b) Describe the super Scalar architecture used in Pentium Processors.
(c) Write a short note on SPARC Processors. 10
(a) Discuss the operation of IC 8255 with the help of its control word. Explain different modes of operation.
(b) Draw the block diagram of IC8259 and explain its operation.
(c) Write a short note on IC 8251. 10
(a) Describe the External memory Interfacing in IC 8051.
(b) List different addressing modes available in IC 8051 with suitable example.
(c) Explain, how Timer Operation takes place in IC8051 ? 10