UART MCQ

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• Which of the signal can control bus arbitration logic in 8250?
  ক

  MR

  খ

  DDIS

  গ

  INTR

  ঘ

  RCLK
• Which of the following signals are active low in the 8250 UART?
  ক

  BAUDOUT

  খ

  DDIS

  গ

  INTR

  ঘ

  MR
• What does ADS indicate in 8250 UART?
  ক

  address signal

  খ

  address terminal signal

  গ

  address strobe signal

  ঘ

  address generating signal
• Which company developed 16450?
  ক

  Philips

  খ

  Intel

  গ

  National semiconductor

  ঘ

  IBM
• Which is the most commonly used UART?
  ক

  8253

  খ

  8254

  গ

  8259

  ঘ

  8250
• How is the baud rate supplied?
  ক

  baud rate voltage

  খ

  external timer

  গ

  peripheral

  ঘ

  internal timer
• What rate can define the timing in the UART?
  ক

  bit rate

  খ

  baud rate

  গ

  speed rate

  ঘ

  voltage rate
• Which of the signal is set to one, if no data is transmitted?
  ক

  READY

  খ

  START

  গ

  STOP

  ঘ

  TXD
• How is data detected in a UART?
  ক

  counter

  খ

  timer

  গ

  clock

  ঘ

  first bit
• What does UART stand for?
  ক

  universal asynchronous receiver transmitter

  খ

  unique asynchronous receiver transmitter

  গ

  universal address receiver transmitter

  ঘ

  unique address receiver transmitter