The internal RAM memory of the 8051 is:
The contents of the accumulator after this operation MOV A,#0BH ANL A,#2CH will be
The ADC0804 has ________ resolution.
The number of data registers is:
The statement LCALL READ passes control to the line labelled READ.
Which of the following commands will copy the contents of location 4H to the accumulator?
The special function registers are maintained in the next 128 locations after the general-purpose data storage and stack.
Which of the following instructions will move the contents of register 3 to the accumulator?
Device pins XTAL1 and XTAL2 for the 8051 are used for connections to an external oscillator or crystal.
The 8051 has ________ parallel I/O ports.
The I/O port that does not have a dual-purpose role is:
This program code will be executed continuously:
A HIGH on which pin resets the 8051 microcontroller?
An alternate function of port pin P3.1 in the 8051 is:
When the 8051 is reset and the EA line is LOW, the program counter points to the first program instruction in the:
This statement will set the address of the bit to 1 (8051 Micro-controller): SETB 01H
Which of the following statements will add the accumulator and register 3?
The total external data memory that can be interfaced to the 8051 is:
Different instruction sets must make up for the various members of the 8051 family.
Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.
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