What is the difference between memory mapped i/o and i/o mapped i/o?

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priyanko

  • Jan 7th, 2007
 

in memory mapped i/o the data transfer is like between two memory segments..i.e the i/o port  is referred by a memory address.where in i/o mapped i/o we use specific command and i/o port is not mentioned as a memory address.

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Vivek naini

  • Feb 11th, 2018
 

Memory mapped IO is one where the processor and the IO device share the same memory location(memory) while IO mapped IO is one where the processor and the IO device have different memory located to each other.

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