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[All Quizzes] → [Embedded Programming Using 8051] → [8051 Based Systems]


1. ► How many timers are present in 8051?

A.
B.
C.

2. ► Typical instruction execution has 6 clock cycles

A.
B.

3. ► 8051 has single memory space for program and data.

A.
B.

4. ► Which register is always updated as part of arithmetic instructions?

A.
B.
C.
D.

5. ► 8051 can be considered system-on-chip because it has

A.
B.
C.
D.

6. ► Which protocol is used for communication inside vehicles?

A.
B.
C.

7. ► 8051 can be used for automotive control.

A.
B.

8. ► TCON register has no role in controlling timers.

A.
B.

9. ► 8051 has only 8 bit counter.

A.
B.

10. ► One machine cycle is same as one clock cycle.

A.
B.

11. ► How many register banks are present in 8051?

A.
B.
C.
D.

12. ► Multiplication takes only one machine cycle.

A.
B.

13. ► 8051 datapath is

A.
B.
C.

14. ► Which register is used for accessing external data memory?

A.
B.
C.

15. ► Which addresses are for SFRs?

A.
B.
C.

16. ► Ports are not involved in external interrupts.

A.
B.

17. ► Latch in front of ports are redundant.

A.
B.

18. ► Which ports can also be used to access external memories?

A.
B.
C.
D.

19. ► 8051 has separate bit addressable memory space.

A.
B.

20. ► Which company introduced 8051?

A.
B.
C.


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