Microprocessor20805 marksDirect Memory Access
What do you mean by Isolated I/O? Explain basic DMA operation in brief.
What do you mean by Isolated I/O? Explain basic DMA operation in brief. [5]
--- Isolated I/O (also called I/O-mapped I/O) is a method of connecting I/O devices to the system where the I/O devices have a separate address space from the memory address space. - The CPU uses dedicated I/O instructions (such as IN and OUT) to communicate with I/O devices, which are distinct f...