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Microcontrollers and Applications Quiz | Microcontrollers and Applications MCQs with Answers

101 What does the symbol ‘#’ represent in the instruction MOV A, #55H?
[A] Direct datatype
[B] Indirect datatype
[C] Immediate datatype
[D] Indexed datatype
Answer: Immediate datatype
102 Which base-register is preferred for address calculation of a byte that is to be accessed from program memory by base-register plus register-indirect addressing mode?
[A] DPTR
[B] PSW
[C] PCON
[D] All of the above
Answer: DPTR

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103 Which bits of opcode specify the type of registers to be used in the register addressing mode?
[A] LSB
[B] MSB
[C] Both a & b
[D] None of the above
Answer: LSB

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