Microcontrollers and Applications Quiz | Microcontrollers and Applications Multiple Choice Questions and Answers
Questions
1
Which among the below assertions represent the salient features of PIC in C-18 compiler?
Answer: All of the above
2
Which register/s should set the SPEN bit in order to configure RC7/RX/DT pins as DT (data lines)?
Answer: RCSTA
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3
Which bit plays a salient role in defining the master or slave mode in TXSTA register especially in synchronous mode?
Answer: CSRC
4
What is the status of shift clock supply in an USART synchronous mode?
Answer: Master-internally, Slave-externally
5
How is the baud rate specified for high-speed (BRGH = 1) operation in an asynchronous mode?
Answer: FOSC / 16 (X + 1)
6
Why is the flag bit TXIF tested or examined in the PIR1 register after shifting all the data bits during the initialization process of USART in asynchronous mode?
Answer: For ensuring the transmission of byte
7
What is the purpose of a special function register SPBRG in USART?
Answer: To control the operation associated with baud rate generation
8
Where should the value of TX9 bit be loaded during the 9 bit transmission in an asynchronous mode?
Answer: TXSTA
9
How many upper bits of SSPSR are comparable to the address located in SSPADD especially after the shifting of 8 bits into SSPSR under the execution of START condition?
Answer: 7
11
Which command/s should be essentially written for I2C input threshold selection and slew rate control operations?
Answer: SSPSTAT
12
Which bits assist in determining the I2C bit rate during the initialization process of MSSP module in I2C mode?
Answer: SSPADD
13
What should be the value of SSPM3:SSPM0 bits so that SPI can enter the slave mode by enabling SS pin control?
Answer: 0100
14
Which bit of SSPCON must be necessarily set so as to enable the synchronization of serial port?
Answer: SSPEN
15
Which among the below stated conditions are selected by the SSPCON & SSPSTAT control bits?
Answer: All of the above
16
Which among the below stated components should be filtered for determining the cut-off frequency corresponding to the PW period of low-pass filter?
Answer: Fundamental FPWM & higher harmonics
17
How do the variations in an average value get affected by PWM period?
Answer: Shorter the PWM period, faster will be the variation in an average value
18
What would be the resolution value if oscillator and PWM frequencies are 16MHz and 2 MHz respectively?
Answer: 3
19
Why are the pulse width modulated outputs required in most of the applications?
Answer: To control average value of output variables
20
Where does the comparison level occur for 16-bit contents in the compare mode operation?
Answer: Between CCPR1 register & TMR1
