MCA-SET 4

What among the below specified functions is related to PWM mode?

• Generation of an interrupt

• Generation of rectangular wave with programmable duty cycle with an user assigned frequency

• Variations in the status of an output pin

• Detection of an exact point at which the change occurs in an input edge

What happens when the program control enters the Interrupt Service Subroutine (ISS) due to enabling of CCP1IE bit in PIE1 especially during the initialization of CCP1 Module in capture mode?

• CCP1F bit gets cleared in PIR1 by detecting new capture event

• GIE bit gets enabled

• Contents of CCPR1L & CCPR1H are automatically copied in TMR1L & TMR1H respectively

• Interrupt flag bit CCP1IF gets enabled in PIR

Which register is suitable for the corresponding count, if the measurement of pulse width is less than 65,535 μs along with the frequency of 4 MHz?

• 4-bit register

• 8-bit register

• 16-bit register

• 32-bit register

The capture operation in counter mode is feasible when mode of CCP module is _________

• synchronized

• asynchronized

• synchronized as well as asynchronized

• irrespective of synchronization

What is the fundamental role exhibited by the CCP module in compare mode in addition to timer 1?

• To vary the pin status in accordance to the precisely controlled time

• To vary the duty cycle of the rectified output

• To vary the oscillator frequencies in order to receive larger periods

• To vary the status of synchronization levels

How does the pin RC2/CCP1 get configured while initializing the CCP module in the compare mode of operation?

• As an input by writing it in TRISC register

• As an output by writing it in TRISC register

• As an input without the necessity of writing or specifying it in TRISC register

• Compare mode does not support pin RC2/CCP1 configuration CCP initialization

Where does the comparison level occur for 16-bit contents in the compare mode operation?

• Between CCPR1 register & TMR1

• Between CCPR1 & CCPR2 registers

• Between CCPR2 register & TMR1

• Between CCPR2 register & TMR0

Why are the pulse width modulated outputs required in most of the applications?

• To control average value of an input variables

• To control average value of output variables

• Both a & b

• None of the above

A Parallel slave port allows ______ bit data transfer.

• 8 bit

• 4 bit

• 16 bit

• 32 bit

A parallel slave port allows ______ data transfer

• One Directional

• Bi-Directional

• Both a and b

• None of these