1. ► Which addresses are for SFRs?

2. ► 8051 has only 8 bit counter.

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

4. ► 8051 has single memory space for program and data.

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

6. ► Typical instruction execution has 6 clock cycles

7. ► Ports are not involved in external interrupts.

8. ► How many timers are present in 8051?

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

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

11. ► 8051 datapath is

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

13. ► Which company introduced 8051?

14. ► 8051 can be used for automotive control.

15. ► 8051 can be considered system-on-chip because it has

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

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

18. ► Latch in front of ports are redundant.

19. ► 8051 has separate bit addressable memory space.

20. ► Multiplication takes only one machine cycle.