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Microprocessors & Microcontrollers8085 I/O Interfacing

Memory-mapped I/O in an 8085 system uses?

  • AThe memory address space and memory-type instructions
  • BOnly an 8-bit isolated port address
  • CNo address lines
  • DOnly RST instructions
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Correct Answer: A. The memory address space and memory-type instructions
Explanation: Memory-mapped I/O assigns peripheral registers addresses in the memory space, allowing memory-reference instructions to access them.
Reference: Standard microprocessors and microcontrollers: 8085 i/o interfacing
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