Consider the following code segment. Assume that processor clock in the active mode is set to 2,000,000 Hz.

while(1) {

int i;

for(i = 2000; i>0; i--); // one loop iteration takes 5 clock cycles

P3OUT |= BIT5; // Set P3.5

for (i = 2000; i>0; i--); // Delay

P3OUT &= ~BIT5; // Clear P3.5

}

A. (5 points) What does the code segment do assuming that P3.5 is configured as a digital output. You may ignore delay needed to execute instructions in lines 1, 4 and 6.

B. (5 points) What will happen if you connect P3.5 to the buzzer?

C. (5 points) How would you implement functionality achieved by the code segment above using TimerB. Port P3.5 is multiplexed with the output signal from the capture and compare block 4 of TimerB. Give details. How would you initialize the system? What would you do in the main loop?