WAYGROUND - PWM - Atheer

Which Arduino Uno pins are typically used for PWM output with Timer 2?

• Pins 11 and 3

• Pins 9 and 10

• Pins 5 and 6

• Pins 4 and 7

How does the duty cycle change in Fast PWM mode when the value in the output compare register (OCR) is increased?

• The duty cycle decreases

• The duty cycle remains unchanged

• The duty cycle increases

• The frequency of the output changes

In Fast PWM mode, when does the output signal typically turn ON and OFF relative to the timer count and the output compare register (OCR)?

• Turns ON when the timer matches OCR and OFF when the timer is at 0

• Turns ON when the timer is at 0 and OFF when the timer matches OCR

• Turns ON when the timer is at 255 and OFF when the timer matches OCR

• Turns ON when the timer matches OCR and OFF when the timer is at 255

What is the output frequency when using a 16MHz clock, a prescaler of 1, and an 8-bit timer?

• 16 MHz

• 62.5 KHz

• 256 KHz

• 1 MHz

In Fast PWM mode, which combination of COM2A1 and COM2A0 bits in the TCCR2A register configures the output to clear on compare match and set at BOTTOM (non-inverting mode)?

• COM2A1=0, COM2A0=0

• COM2A1=0, COM2A0=1

• COM2A1=1, COM2A0=0

• COM2A1=1, COM2A0=1