Q.1
Which of the following registers are related to port P1?
  • a) P1SEL
  • b) P1DIR
  • c) P1IES
  • d) All of the mentioned
Q.2
A pull-up or pull-down resistor ___________
  • a) removes the full output drive on the output pin
  • b) gives only a feeble current through the pull-up to resistor
  • c) removes the full output drive on the output pin & gives only a feeble current through the pull-up to resistor
  • d) none of the mentioned
Q.3
P1.3 is the ___________
  • a) input CCI1A to Timer_A
  • b) is connected to the voltage reference VREF of SD16_A
  • c) is output TA0 from Timer_A
  • d) are digital inputs with pull-up resistors
Q.4
What actually is SD16_A?
  • a) it is an interrupt
  • b) it is a timer
  • c) it is an analog to Digital Converter
  • d) it is a serial communication module
Q.5
P1IE and P1IES are registers that are used to ___________
  • a) control the Port1 digital i/o ports
  • b) control the Port1 interrupts
  • c) control the Port1 serial communication interfaces
  • d) all of the mentioned
Q.6
Unused pins must never be left unconnected in their default state as inputs.
  • a) true
  • b) false
  • c) cant be said
  • d) depends on the conditions
Q.7
Which of the following is an effect of a Schmidt trigger?
  • a) it turns slowly varying inputs, which might cause problems while they pass slowly through the undefined range of input voltages, into abrupt, clean logical transitions
  • b) It eliminates the effect of noise on the input, provided that it is not large enough to span the gap between the upward and downward thresholds
  • c) none of the mentioned
  • d) all of the mentioned
Q.8
To ensure that a negative fluctuation does not trigger an unwanted downward transition by pulling the input down through VIT−, we must choose
  • a) minimum hysteresis
  • b) maximum hysteresis
  • c) all of the mentioned
  • d) none of the mentioned
Q.9
The SPDT switch can be used as a ___________
  • a) detecting circuit
  • b) debouncing circuit
  • c) devaluing circuit
  • d) degenerating circuit
Q.10
Debouncing can be carried out at a hardware as well as the software end?
  • a) yes
  • b) no
  • c) cant be said
  • d) depends on the conditions
0 h : 0 m : 1 s