Q. What is the function of the TMOD register?

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Q. What is the maximum delay that can be generated with the crystal frequency of 22MHz?

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Q. Auto reload mode is allowed in which mode of the timer?

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Q. Find out the roll over value for the timer in Mode 0, Mode 1 and Mode 2?

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Q. What steps are followed when we need to turn on any timer?

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Q. If Timer 0 is to be used as a counter, then at what particular pin clock pulse need to be applied?

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Q. In the instruction “MOV TH1,#-3”, what is the value that is being loaded in the TH1 register ?

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Q. TF1, TR1, TF0, TR0 bits are of which register?

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Q. Which devices are specifically being used for converting serial to parallel and from parallel to serial respectively?

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Q. What is the difference between UART and USART communication?

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Q. Which of the following best describes the use of framing in asynchronous means of communication?

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Q. Which of the following signal control the flow of data?

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Q. Which of the following is the logic level understood by the micro-controller/micro-processor?

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Q. What is null modem connection?

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Q. Which of the following best states the reason that why baud rate is mentioned in serial communication?

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Q. With what frequency UART operates( where f denoted the crystal frequency )?

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Q. What is the function of SCON register?

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Q. What should be done if we want to double the baud rate?

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Q. When any interrupt is enabled, then where does the pointer moves immediately after this interrupt has occurred?

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Q. What are the contents of the IE register, when the interrupt of the memory location 0x00 is caused?

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