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Which of the following protocol matches the Intel 80486?

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Which of the following protocol matches the Intel 80486?

(a) MCM62940

(b) MCM62486

(c) US 74707 B2

(d) Hyper Bus

I had been asked this question during an interview for a job.

Enquiry is from Burst Interfaces in chapter Memory Systems of Embedded Systems

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The correct answer is (b) MCM62486

To explain: The MCM62486 has an on-chip counter that matches the Intel 80486 and is developed by the Motorola.

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