Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Home
»
Digital Electronics
»
The 8051 Microcontroller
Which of the following instructions will move the contents of register 3 to the accumulator?
MOV 3R, A
MOV R3, A
MOV A, R3
MOV A, 3R
Correct Answer:
MOV A, R3
← Previous Question
Next Question→
More Questions from
The 8051 Microcontroller
The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
Different instruction sets must make up for the various members of the 8051 family.
The RST pin requires a HIGH to reset the 8051 microcontroller.
Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
Analog output current must be converted into a usable voltage. To perform this current-to-voltage conversion a 700 op amp may be used.
A Celsius thermometer is an application for the 8051 microcontroller.
The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.
A microcontroller is called a computer on a chip.
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments