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PUNJAB TECHNICAL UNIVERSITY MCA - I (SEM 2) SEP 2010 : Introduction To Microprocessor

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Roll No. ...................... Total No. of Questions : 13] [Total No. of Pages : 02 Paper ID [A0510] (Please fill this Paper ID in OMR Sheet) MCA (205) (S05) (O) (Sem. - 2nd) INTRODUCTION TO MICROPROCESSOR Time : 03 Hours Maximum Marks : 75 Instruction to Candidates: 1) Section - A is Compulsory. 2) Attempt any Nine questions from Section - B. Section - A Q1) (15 2 = 30) a) What are the various Registers in 8085? b) What is a program counter? c) What are the various flags used in 8085? d) What happens when HLT instruction is executed in processor? e) What do you mean by multiplexing the bus? How the data and address lines are demultiplexed. f) What is the instruction format of 8085? g) Which are level triggering Interrupts in 8085. h) What is the maximum clock frequency in 8086? i) What are the different functional units in 8086? j) What are the various interrupts in 8086? Which interrupts are generally used for critical events? k) What is the position of the stack pointer after the PUSH Instruction. l) What is the size of data and address bus of 8086? m) What is 8087? How it is different from 8086. n) o) A-528 What is DMA? Name DMA controller. What is a Co-processor? P.T.O.

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Additional Info : Mca - I(sem 2) September 2010 Question Paper - Introduction To Microprocessor
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