ISRO Computer Science (CSE) 2008 - Question 45

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The TRAP is one of the interrupts available in INTEL 8085. Which one of the following statements is true of TRAP?

  • A. it is level triggered
  • B. it is negative edge triggered
  • C. it is +ve edge triggered
  • D. it is both +ve and -ve edges triggered

Answer: D. it is both +ve and -ve edges triggered

Explanation: Actually, TRAP is both edge and level triggered (Edge to recognize, level to sustain). The standard ISRO answer usually marks it as edge/level or specific triggers.

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