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How many legal combinations are there for memory reads

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A 32-bit CPU with address lines A2-A31 requires all memory references to be aligned. That is, words have to be addressed at multiples of 4 bytes, and half-words have to be addressed at even bytes. Bytes can be anywhere. How many legal combinations are there for memory reads, and how many pins are needed to express them? Give two answers and make a case for each one.

Reference no: EM13869275

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