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Microcontroller
Msp430 Microcontroller Multiple Choice
Quiz 1
Solution
Q.1.
The watchdog counts up and resets the MSPwhen it reaches the limit?
a) true
b) false
c) cant be said
d) depends on the conditions
Q.2.
Which of the following is correct about WDTCTL?
a) it is a 16 bit register
b) it is guided against accidental writes that require a password
c) a reset will occur if a value with an incorrect password is written to WDTCTL
d) all of the mentioned
Q.3.
WDTNMI is found in the _________
a) higher byte of WDTCTL
b) lower byte of WDTCTL
c) its first four bits
d) its last four bits
Q.4.
Which of the following bits reads 0 under normal conditions but goes 1 when it wants to initiate some action?
a) WDTNMI
b) WDTHOLD
c) WDTTMSEL
d) WDTCNTCL
Q.5.
WDTISx bits control the _________
a) period of the clock
b) act as “Nonmaskable Interrupts”
c) stop the watchdog timer
d) start the watchdog timer
Q.6.
The process of setting the WDTCNTCL bit in WDTCTL is through
a) petting
b) feeding
c) kicking
d) all of the mentioned
Q.7.
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
Q.8.
Is this instruction correct?
a) yes
b) no
c) cant be said
d) depends on the conditions
Q.9.
Setting the WDTTMSEL bit of the WDTCTL register makes the watchdog timer act as
a) interrupt
b) communication device
c) converter
d) interval timer
Q.10.
WDTIFG flag gets cleared if
a) if is interrupt had occurred
b) if the interrupt is serviced
c) if there can be no interrupt
d) all of the mentioned
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