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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. What is null modem connection?

View solution

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

View solution

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

View solution

Q. What is the function of SCON register?

View solution

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

View solution

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

View solution

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

View solution

Q. After RETI instruction is executed then the pointer will move to which location in the program?

View solution

Q. Which pin of the external hardware is said to exhibit INT0 interrupt?

View solution

Q. Which bit of the IE register is used to enable TxD/RxD interrupt?

View solution