NOTE !! You must answer them all OR leave them to another Instructor.

Be aware These multiple choices from class "8051 Microcontroller and Embedded Systems"

Give direct answers!

6. Which of the following addressing modes describes the instruction MOV A, #95H? A. Register B. Direct CoImmediate D. Indexed 7. Which of the following instructions is invalid? A. MOV A, @RO B, MOV P1 , A CC, MOV A, #R3 D. MOV A, RO The program counter in the 8051 is A.a 16-bit register B. a 20-bit register C. an 8-bit register D. a 12-bit register 9. Which RAM memory space is used for register bank 2? A. 0000H-0007H B. 0008H-000FH C,00101H-0017H D. 0018H-001FH 10. Upon reset, what is the content of the program counter register? A. OFFFH B. 0010H C. 0003H Q, 0000H 11. Which register contains the address of the instruction to be executed next? A. RO PC C. A D. SP