Sample papers are the best source of knowledge for the students towards their preparation of semester examinations. Students will find all the sample papers on this great source of education. We provide almost all the sample papers here in the form notes and in PDF formats. Here is one of the sample paper of B.Tech. Microprocessor and Interfacing is one of the subject students will study or studying in 5th or 6th semester. Students can prepare here with this great source of knowledge. Students can refer this website for their needs of looking for previous sample papers. We even provide the solutions of these sample papers in best possible way. So keep watching this space for more and latest B.Tech sample papers of all the universities ( MDU, UPTU, KTU, DTU, RTU,).
Microprocessor and Interfacing B.Tech 5th semester sample paper Dec-2013Paper Code: EE-309-F
Note : Attempt five questions in total selecting one question from each of the four units. Questions No. 1 is cumpulsory.
Q.1.
- (a) Why AD0 - AD7 lines multiplexed in 8085.
- (b) Write a program to find 1's complement of the number
- (c) What is Pipelining ? How does this occur.
- (d) What is wrong with a MOV instruction ?
- (e) Explain following instructions with example : SPHL, XTHL, RET, and IN address.
Q.3(a). What is the functioning of timing and control unit in 8085 microprocessor ? Discuss all its signals in detail.
Q.3(b). Differentiate between vectored and Non-vectored interrupt. Also explain interrupt structure with proper diagram.
Q.4(b). If the first instruction of a program is to be fetched from 12340H. What should the value of CS register be ? The sixth instruction to be fetched is at memory location 1234FH. What should be the value of IP register ? (Hint : Assume IP to be 000H for first part)
Q.5.(a). Explain the block diagram of 8086 microprocessor.
Q.5.(b). How physical address is computed in 8086 microprocessor ?
Q.6.(a). Explain directives used in assembly language program ? Why are segment directives used.
Q.6.(b). Write a simple assembly program to subtract two memory locations, where each memory location is one byte wide.
Q.7.(a) Explain NOP and HLT instructions.
Q.7.(b) Write a 8086 assembly language program to find largest number in a data array.
Q.8.(a). Explain Pin diagram of 8237 DMA controller.
Q.8.(b). Explain BSR and I/O modes of 8255 PPI chip.
Q.9. Explain (Any two) :
- Instruction register and Priority Resolver.
- 8259-A Programmable interrupt controller.
- 8253/8254 programmable Interval time.
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