Which of the following is correct statement ? – McqOptions

MCQOPTIONS

1.	Which of the following is correct statement ?
A.	In memory - mapped I/O, the CPU can manipulate I/O data residing in interface registers that are not used to manipulate memory words.
B.	The isolated I/O method isolates memory and I/O addresses so that memory address range is not affected by interface address assignment.
C.	In asynchronous serial transfer of data the two units share a common clock.
D.	In synchronous serial transmission of data the two units have different clocks.
Answer» C. In asynchronous serial transfer of data the two units share a common clock.

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