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Re: Anna University Question Papers for IT
Here is the Anna University Question Papers For IT: 1. Specify the single instruction, which clears the most significant bit of B register (of 8051), without affecting the remaining bits. 2. Give the alternate functions for the port pins: P 3.3 and P 3.6 3. What is the purpose for which the signal ALE is available in 8085 and 8086? 4. What is the purpose for which the signal ‘Ready’ is available in 8085 and 8086? 5. What happens in 8086 processor, when i) overflow of sum occurs during addition of signed numbers. ii) overflow of quotient occurs during division operation. 6. What is the operation performed by the instruction CBW (of 8086). Give an example for its use. 7. Formulate the control word for setting bit Pc4 of 8255 high using BSR modes. 8. What is the purpose for which the ‘auxiliary carry’ flag is available in Intel processors? 9. What is the necessity for providing 4 banks of general purpose registers R0 to R7 in 8051? How can you switch over to bank1 from bank0? 10. Name the following interfacing ICs: 8253, 8237, 8259 and 8279. PART – B (5 x 16 = 80 Marks) Complete question paper is in the attachment click on it…. |
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