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How is bus lockup avoided?

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How is bus lockup avoided?

(a) timer and polling

(b) combined format

(c) terminal counter

(d) counter

The question was asked in an interview.

This interesting question is from I2C-II topic in section Basic Peripherals of Embedded Systems

1 Answer

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Best answer
The correct answer is (a) timer and polling

Best explanation: The timeout value can be changed by the peripheral devices, so for a sophisticated system a combination of polling and timer is used to check for the signal n times within a predefined interval. This can avoid the bus lock.

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