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Which of the following determines the rate generation?

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Which of the following determines the rate generation?

(a) divide by N

(b) multiply by N

(c) addition by N

(d) subtraction by N

The question was posed to me in a national level competition.

My question is taken from Timer in section Basic Peripherals of Embedded Systems

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Correct answer is (a) divide by N

Explanation: The rate generator mode is determined by the mode 3 with the Intel 8253. It is a simple divide by N mode where N is the initial value loaded into the counter.

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