Difference between I/O Mapped I/O and Memory Mapped I/O:

The difference between I/O Mapped I/O and Memory Mapped I/O is given below

I/O Mapped I/O – Data transfer between the processor and the input/output devices are carried out using IN 8-bit port address or OUT 8-bit port address instructions of 8085. Only 256 ports can be used or interfaced.

Memory Mapped I/O – Data transfer between the processor and input/output devices are done using LDA 16 bit address or STA 16 bit address instructions of 8085. All instructions related to memory can be used as data.

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