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How many bit accumulator does DSP56000 have?

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How many bit accumulator does DSP56000 have?

(a) 28

(b) 56

(c) 112

(d) 14

I got this question in an online interview.

The origin of the question is The Berkeley RISC Model and Digital Signal Processing topic in division Embedded Processors of Embedded Systems

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The correct answer is (b) 56

To elaborate: The ALU of DSP56000 have two 56-bit accumulator A and B each of which have a small register with it.

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