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For which pin of 80286 is the active low pin, BUSY of 80287, connected?

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in Microprocessor by (39.4k points)
For which pin of 80286 is the active low pin, BUSY of 80287, connected?

(a) ERROR (active low)

(b) BUSY (active low)

(c) HLDA

(d) TEST (active low)

This question was posed to me in unit test.

My question is taken from 80287 Math Coprocessor -2 in chapter 80286-80287-A Microprocessor with Memory Management and Protection of Microprocessor

1 Answer

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by (49.2k points)
Right answer is (d) TEST (active low)

The best explanation: The BUSY (active low) is connected to the TEST (active low) pin of 80286.

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