The number of data registers is:

More Questions from The 8051 Microcontroller

• The following program will receive data from port 1, determine whether bit 2 is high, and then send the number FFH to port 3: READ: MOV A,P1 ANL A,#2H CJNE A,#02H,READ MOV P3,#FFH
• The contents of the accumulator after this operation MOV A,#0BH ANL A,#2CH will be
• The last 96 locations in the internal data memory are reserved for general-purpose data storage and stack.
• The contents of the accumulator after this operation MOV A,#2BH ORL A,00H will be:
• The microcontroller is useful in systems that have nonvariable programs for dedicated applications.
• The I/O port that does not have a dual-purpose role is:
• An alternate function of port pin P3.1 in the 8051 is:
• The internal RAM memory of the 8051 is:
• Which of the following commands will copy the contents of RAM whose address is in register 0 to port 1?
• Which of the following instructions will load the value 35H into the high byte of timer 0?

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