Key Topic 39: Microprocessors

Question 1

3-39E1: In a microprocessor-controlled two-way radio, a “watchdog” timer:

A. Verifies that the microprocessor is executing the program.
B. Assures that the transmission is exactly on frequency.
C. Prevents the transmitter from exceeding allowed power out.
D. Connects to the system RADAR presentation.

Answer 1

A. Verifies that the microprocessor is executing the program.

Question 2

3-39E2: What does the term “DAC” refer to in a microprocessor circuit?

A. Dynamic access controller.
B. Digital to analog converter.
C. Digital access counter.
D. Dial analog control.

Answer 2

B. Digital to analog converter.

Question 3

3-39E3: Which of the following is not part of a MCU processor?

A. RAM
B. ROM
C. I/O
D. Voltage Regulator

Answer 3

D. Voltage regulator.

Question 4

3-39E4: What portion of a microprocessor circuit is the pulse generator?

A. Clock
B. RAM
C. ROM
D. PLL

Answer 4

C. ROM

Question 5

3-39E5: In a microprocessor, what is the meaning of the term “ALU”?

A. Automatic lock/unlock.
B. Arithmetical logic unit.
C. Auto latch undo
D. Answer local unit

Answer 5

B. Arithmetical logic unit.

Question 6

3-39E6: What circuit interconnects the microprocessor with the memory and input/output system?

A. Control logic bus.
B. PLL line.
C. Data bus line.
D. Directional coupler.

Answer 6

A. Control logic bus.