Microprocessor Fundamentals - Technical MCQs
Q1: I/O mapped systems identify their input/output devices by giving them a(n) ________.A
8-bit port number
B
16-bit port number
C
8-bit buffer number
D
8-bit instruction
ANS:A - 8-bit port number In memory mapped I/O the addresses of I/O ports are of 16 bits. And in I/O mapped I/O scheme the address of I/O ports is of 8 bits. |
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