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D192016 Pages:2

PART D
Answer any two questions, each carries 9 marks

What is interrupt? Discuss the differences between subroutine and interrupt
service routine.
Describe the different bus arbitration techniques for DMA data transfer.
Explain semiconductor ROM memories
Discuss the SCSI protocol for a complete disk read operation by listing out the
sequence of events involved in it.
How do you relate set associative mapped cache with Direct mapped and
associative mapped cache mechanisms?
Design ೩ 64K x 8 memory module using 16K x 1 static memory chips.

PARTE

Answer any four questions, each carries 10 marks

Write short notes on Arithmetic , logic and shift microoperations with examples

Show the block diagram that executes the following conditional control statements

CT2:FEA

12 :1 > 8 where ( 15 the conditional variable and A, 8 , F are registers

Draw the block diagram of a processor unit with 16 selection variables and
discuss the functions of selection variables. Derive the control word for the micro
operation Rl ‏ے‎ 11-2

Discuss the major operations that can be performed by a parallel adder in the
design of arithmetic circuit.

Discuss the different methods of control logic design in detail

Describe the organization of micro program sequencer with neat diagram. Also
provide its address sequencing capabilities.

Explain the horizontal and vertical microinstructions in microprogrammed

control.

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