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How many bit data bus is used in ARM7EJ-s?

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How many bit data bus is used in ARM7EJ-s?

(a) 32-bit

(b) 16-bit

(c) 8-bit

(d) Both 16 and 32 bit

This question was addressed to me in final exam.

This interesting question is from Microcontroller (ARM 7) topic in portion Prototyping Embedded Devices of IOT

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The correct option is (a) 32-bit

Best explanation: The ARM7EJ-s processor has a Von Neumann architecture. This feature is a single 32-bit data bus that carries both instructions and data. Only load, store, and swap instructions can access data from memory. Data can be 8- bit.

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