MCA-PART8

Duration of time signal is high

• T ON Time
• T OFF Time
• Both A and B
• None of These

Duration of time signal is Low

• T ON Time
• T OFF Time
• Both A and B
• None of These

Ratio of time on and Total Time period is know as

• T ON Time
• T OFF Time
• Both A and B
• Duty Cycle

It is represented as the sum of on-time and off-time of PWM signal

• T ON Time
• T OFF Time
• Period
• Duty Cycle

Which among the below mentioned aspect issues are supported by capture/compare/PWM modules corresponding to time in PIC 16F877?

• Control
• Measurement
• Generation of pulse signal
• All of the above

Which mode allows to deliver the contents of 16-bit timer into a SFR on the basis of rising/falling edge detection?

• Capture Mode
• Compare Mode
• PWM Mode
• MSSP Mode

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