Microprocessor and Interfacing Techniques - Jun 2015

Computer Engg (Semester 4)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.

Answer any one question from Q1 and Q2

1 (a) What are different components of MS-DOS ? Explain DOS loading with the help of neat diagram.(8 marks) 1 (b) Compare 8086, 80386 and i7 processor on the basis of architectural features.(4 marks) 2 (a) Draw and explain block diagram of 8259APIC.(8 marks) 2 (b) Write the initialization instructions of 8259A PIC, to meet the following specifications:
i) Interrupt type 32
ii) Edge Triggered, single and ICW4 needed, interval of 8
iii) Mask IR1 & IR3 interrupts.(4 marks)

Answer any one question from Q3 and Q4

3 (a) Draw and explain I/O of BSR mode of 8255 with appropriate control word formats.(4 marks) 3 (b) Draw and discuss internal block diagram of 8251 USART.(6 marks) 3 (c) Define Resolution and Offset error terms of ADC.(2 marks) 4 (a) Design a control word format for square wave generator with 1ms period, the input frequency for 8253 is 1 MHz.(4 marks) 4 (b) Draw and explain the following 8279 commands:
(i) Keyboard/Display mode set command
(ii) Read FIFO/Sensor RAM command.(4 marks) 4 (c) Explain with neat diagram sequence of DMA operation.(4 marks)

Answer any one question from Q5 and Q6

5 (a) Draw and discuss the interface between 8086 and 8087.(7 marks) 5 (b) With proper timing diagram explain Read cycle in minimum mode of 8086 microprocessor.(6 marks) 6 (a) With the help of neat diagram explain minimum mode configuration of 8086.(6 marks) 6 (b) Draw and explain format of control and status word of 8087 NDP(4 marks) 6 (c) Explain the following 8087 instructions with one example Each:
i) FSQRT
ii) FLDZ
iii) FADD(3 marks)

Answer any one question from Q7 and Q8

7 (a) Explain the features of 82801 IJR I/O Controller Hub.(5 marks) 7 (b) Draw and explain block diagram of X58 Chipset.(8 marks) 8 (a) Draw and explain block diagram of i5 motherboard.(8 marks) 8 (b) Write a short note on Intel's QPI Technology.(3 marks) 8 (c) Explain ICH10 PCI Interface.(2 marks)