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What is the function of this instruction “WDTCTL = WDTPW | WDTCONFIG”, where **#define WDTCONFIG (WDTCNTCL|WDTSSEL)**

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What is the function of this instruction “WDTCTL = WDTPW | WDTCONFIG”, where **#define WDTCONFIG (WDTCNTCL|WDTSSEL)**

(a) it sets the watchdog timer

(b) it configures and clears the watchdog timer

(c) it stops the watchdog timer

(d) it configures and sets the watchdog timer

I got this question in an interview for internship.

The question is from Watchdog Timer in division MSP430 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Right answer is (b) it configures and clears the watchdog timer

Explanation: WDTCTL = WDTPW | WDTCONFIG instruction is used to clear and configure the watchdog timer of a microcontroller.

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