Operating Systems20805 marksMemory mapped I/O
What is memory mapped I/O? Explain about device independent I/O software.
What is memory mapped I/O? Explain about device independent I/O software. [5]
Memory Mapped I/O is a method of performing input/output operations between the CPU and peripheral devices in which the I/O devices are mapped into the same address space as the main memory. - In this scheme, a portion of the memory address space is reserved for I/O device registers (control, sta...