MICROPROCESSOR
SEM IV,2012
B.TECH
UTTARAKHAND TECHNICAL UNIVERSITY
UTU
Time: 3
hours
Total marks: 100
Attempt
any four parts of the following:
- What are the basic functions of
microprocessor? Differentiate between microprocessor and
microcomputer.
- Describe the functions of flag of the 8085
microprocessor.
- How instruction cycle, machine cycle and clock cycle
are related? Explain them with proper sketches.
- Discuss the improvement of INTEL 8086
over INTEL 8085 microprocessor.
- Write short note on built-in serial data interface of
8085.
- Describe the function of the 8086 instruction queue.
How does it speed up processing?
Attempt
any four parts of the following:
- Classify the instructions of 8086 microprocessor in
different group. Also, provide an example for each one.
- Draw the timing diagram of memory read cycle in minimum
mode. Discuss how it differs with the maximum mode.
- Show bit wise the PSW of 8086 and explain the function
of each flag.
- Discuss the function of the segment registers of 8086.
- Explain the physical address formation with the segment
and off-set words.
- Describe the demultiplexing of the bus AD7-AD0
with suitable diagram.
Attempt
any two parts of the following:
- Explain the addressing modes of the INTEL 8086
microprocessor with suitable example for each.
- Write an assembly language program to sum the following
series.
Sum = 1+2+3+4+.......+12 - Write an assembly language program to generate a delay
of 0.4 sec if the crystal frequency is 5 MHz.
Attempt
any two parts of the following:
- Discuss the functional block diagram of INTEL 8255 and
explain its port address formation and different modes of operation.
- Draw a labeled block diagram of INTEL 8253. Explain the
function of each unit separately. Also, explain how a counter block works.
- Describe the interfacing of an 8259 PIC to 8086
microprocessor.
Write short note on any
two of the following:
- Pentium Processor
- 8237 DMA controller
- Interfacing of DRAM to 8086 microprocessor.
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