Question: Consider a hypothetical microprocessor generating a 16-bit address (e.g., assume that the program counter and the address registers are 16 bits wide) and having a

Consider a hypothetical microprocessor generating a 16-bit address (e.g., assume that the program counter and the address registers are 16 bits wide) and having a 16-bit data bus.

a. What is the maximum memory address space that the processor can access directly if it is connected to a “16-bit memory”?

b. What is the maximum memory address space that the processor can access directly if it is connected to an “8-bit memory”?

c. What architectural features will allow this microprocessor to access a separate “I/O space”?

d. If an input and an output instruction can specify an 8-bit I/O port number, how many 8-bit I/O ports can the microprocessor support? How many 16-bit I/O ports? Explain.

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