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Microprocessors & Microcontrollers8086 Architecture

The 8086 Bus Interface Unit is responsible for functions including?

  • AInstruction fetching and physical address generation
  • BOnly arithmetic multiplication
  • COnly flag comparisons
  • DOnly interrupt masking
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Correct Answer: A. Instruction fetching and physical address generation
Explanation: The BIU handles bus operations, instruction fetching, segment registers and physical-address generation.
Reference: Standard microprocessors and microcontrollers: 8086 architecture
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