MICROPROCESSOR (MP) MAY 2013 SEMESTER 5 COMPUTER SCIENCE
Con. 6953-13. GS-8871
(3 Hours) [Total Marks : 100]
N.B. : (1) Question No. 1 is compulsory.
(2) Solve any four questions out of the remaining six questions.
| 1. (a) | Explain the memory segmentation in Intel 8086 processor with its advantages and | 10 |
| disadvantages. | ||
| (b) | Explain interrupts of Intel 8086 microprocessor. | 10 |
2. (a) | Design an 8086 based system with following specification :- | 10 |
| (i) 8086 working at 8MHz | ||
| (ii) 32 kbytes EPROM using 16kB devices | ||
| (iii) 64 kbytes RAM using 32kB devices | ||
| Draw the complete schematic of the design indicating address map. | ||
| (b) | Explain the following Intel 8086 assembly language instructions giving example. | 10 |
| (1) TEST (2) NOP (3) STOS (4) DAA (5) SAR. | ||
3. (a) | Explain the operating modes of 8255 PPI including the handshaking operation. | 10 |
| (b) | Explain the operating modes of 8254 PIT. | 10 |
4. (a) | Explain the modes of operation of DMA controller. | 10 |
| (b) | What do you understand by bus arbitration ? Explain the different bus arbitration | 10 |
| techniques with diagram. | ||
5. (a) | Explain the 8288 bus controller block diagram. Explain its use. | 10 |
| (b) | Explain the operation of three 8259 PIC in cascaded mode. | 10 |
6. (a) | Explain with neat diagram memory read and write machine cycle in maximum | 10 |
| mode. | ||
| (b) | Explain addressing modes of 8085 microprocessor with example. | 10 |
7. | Write a short notes on (any four) :- | 20 |
| (a) RS-232 Serial Interface Standard | ||
| (b) 8284 clock generator | ||
| (c) Fixed port and Variable port addressing | ||
| (d) Generation of Reset Signal in 8086 based system | ||
| (e) String Instructions. |
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