1. ► Which register is used for accessing external data memory?
2. ► 8051 has separate bit addressable memory space.
3. ► Typical instruction execution has 6 clock cycles
4. ► Which protocol is used for communication inside vehicles?
5. ► Which ports can also be used to access external memories?
6. ► 8051 has single memory space for program and data.
7. ► TCON register has no role in controlling timers.
8. ► Multiplication takes only one machine cycle.
9. ► Latch in front of ports are redundant.
10. ► 8051 has only 8 bit counter.
11. ► Which register is always updated as part of arithmetic instructions?
12. ► 8051 can be considered system-on-chip because it has
13. ► Ports are not involved in external interrupts.
14. ► Which company introduced 8051?
15. ► 8051 can be used for automotive control.
16. ► 8051 datapath is
17. ► Which addresses are for SFRs?
18. ► How many register banks are present in 8051?
19. ► One machine cycle is same as one clock cycle.
20. ► How many timers are present in 8051?
