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!

2. The DPTR is_ A a 16-bit register B. a 20-bit register C. an 8-bit register D. a 12-bit register 13. What is the largest value that can be contained in register R7? A. OFH B FFH C. OFFFH 14. What are the values of the auxiliary carry flag (AC) and the carry flag (CY) after the following program is run? MOV A, #5CH ADD A, #2AH A. AC 0, CY-0 B, AC = 0, CY = 1 C. AC = 1, CY = 0 D. AC 1, CY 1 15. What are the values of the carry flag (CY) and the overflow flag (OV) after the following program is run? MOV A, #-120, A = 1000 1000 MOV R4, #-10; R4 = 11110110 ADD A, R4 CY = 1, OV=0 D.,CY = 1, OV = 1