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To operate 8087 in maximum mode, the pin MN/MX (active low) is

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in Microprocessor by (39.4k points)
To operate 8087 in maximum mode, the pin MN/MX (active low) is

(a) connected to Vcc or power supply

(b) connected to ground

(c) left unconnected

(d) none of the mentioned

I got this question in exam.

I need to ask this question from Numeric Processor 8087 -1 in portion Multimicroprocessor Systems of Microprocessor

1 Answer

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by (49.2k points)
The correct option is (b) connected to ground

To explain I would say: The 8087 can operate in a maximum mode, only when the MN/MX (active low) pin of the CPU is grounded. In maximum mode, all the control signals are derived using a sequence chip known as a bus controller.

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