Question

Find the number of unique addresses accessed by a 16-bit microprocessor. If the width of the data bus is also 8 bits, determine the word size in bytes.

Answer 1

Solution:

Given,

=>16-bit microprocessor.

=>Width of data bus = 8 bits

Explanaton:

Calculating number of unique addresses:

=>Number of unique addresses with 16 bits = 2^number of bits

=>Number of unique addresses with 16 bits = 2^16 addresses

=>Number of unique addresses with 16 bits = 65536 addresses

Calculating word size in bytes:

=>Word size in bytes = width of data bus/8 bytes as 1 byte = 8 bits

=>Word size in bytes = 8/8 byte

=>Word size in bytes = 1 byte

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