ISRO Electronics & Communication (ECE) 2012 - Question 71

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Topic: Microprocessors

"Cycle Stealing" in microprocessor parlance refers to

  • A. Special type of DMA access by an external device
  • B. RESET operation at power ON by microprocessor
  • C. Interrupt Acknowledge cycle
  • D. None of above

Answer: A. Special type of DMA access by an external device

Explanation: Cycle stealing is a method of accessing RAM without interfacing with CPU. It is similar to DMA for allowing I/O controllers to read or write without CPU intervention.

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