Microcontroller Mock Test 2

10%

Question 1 of 10

1. Which of the following is the logic level understood by the micro-controller/micro-processor?

TTL & RS232 logic level

RS232 logic level

None of the mentioned

TTL logic level

Question 1 of 10

Question 2 of 10

2. Which bit of the IE register is used to enable TxD/RxD interrupt?

IE.D3

IE.D4

IE.D2

IE.D5

Question 2 of 10

Question 3 of 10

3. Which of the following step/s is/are correct to perform reading operation from an LCD?

low to high pulse at E pin & R/W pin is set high

none of the mentioned

low to high pulse at E pin

R/W pin is set high

Question 3 of 10

Question 4 of 10

4. Auto reload mode is allowed in which mode of the timer?

Mode 0

Mode 2

Mode 3

Mode 1

Question 4 of 10

Question 5 of 10

5. When we add two numbers the destination address must always be.

accumulator

any register

some immediate data

memory

Question 5 of 10

Question 6 of 10

6. How many data lines are there in a 16*2 alphanumeric LCD?

Question 6 of 10

Question 7 of 10

7. What is the function of the SCON register?

to program the start bit, stop bit, and data bits of framing

to control SMOD registers

none of the mentioned

to control SBUF and SMOD registers

Question 7 of 10

Question 8 of 10

8. If Timer 0 is to be used as a counter, then at what particular pin clock pulse need to be applied?

P3.3

P3.5

P3.4

P3.6

Question 8 of 10

Question 9 of 10

9. Which devices are specifically being used for converting serial to parallel and from parallel to serial respectively?

serial communication

counters

registers

timers

Question 9 of 10

Question 10 of 10

10. Which command is used to select the 2 lines and 5*7 matrix of an LCD?

0x01

0x0e

0x06

0x38

Question 10 of 10