ECE415L - LONG QUIZ

What is the primary function of an interrupt in the PIC16F628A microcontroller?

• To stop the main program permanently

• To handle events asynchronously without polling

• To increase the clock speed

• To execute the main loop faster

In MikroC, which function is used to enable global interrupts?

• INTCON.GIE = 1;

• EnableInterrupts();

• interrupt_enable();

• GIE_Set();

Which type of interrupt is triggered by a change on the RB0/INT pin?

• Timer interrupt

• External interrupt

• UART interrupt

• ADC interrupt

What is the purpose of the OPTION_REG.INTEDG bit in the PIC16F628A?

• To enable or disable interrupts globally

• To set the priority of an interrupt

• To determine whether an interrupt is triggered on a rising or falling edge

• To clear the interrupt flag

What is the primary function of the 7447 IC?

• Motor driver

• 7-segment decoder/driver

• Voltage regulator

• Memory storage

Which type of seven-segment display is compatible with the 7447 IC?

• Common Anode

• Common Cathode

• Both A and B

• None of the above

What is the logic level required to activate a segment in a common anode seven-segment display?

• Logic LOW (0)

• Logic HIGH (1)

• Alternating between HIGH and LOW

• No external control required

Which pins of the 7447 IC connect to the seven-segment display segments?

• A, B, C, D

• a, b, c, d, e, f, g

• VCC and GND

• Q0 to Q3

What will be the 7447 IC output for a binary input of 1001 (decimal 9)?

• Activates segments a, b, c, d, f, g

• Activates segments a, c, d, e, g

• Activates all segments

• No output

How many inputs does the 7447 IC require to display a digit?

• 2

• 3

• 4

• 7