What are the interview questions for microcontroller?
Top 8051 Microcontroller Interview questions and answers asked in interviews
- 1) What is 8051 Microcontroller?
- 2) What are registers in Microcontroller?
- 3) List Interrupts available in 8051 Microcontroller.
- 4) What is stack pointer in 8051 Microcontroller?
- 5) List some features of 8051 Microcontroller.
What is 8051 microcontroller used for?
Applications of 8051 Microcontroller Home Applications (TVs, VCR, Video Games, Camcorder, Music Instruments, Home Security Systems, Garage Door Openers, etc.) Communication Systems (Mobile Phones, Intercoms, Answering Machines, Paging Devices, etc.) Office (Fax Machines, Printers, Copiers, Laser Printers, etc.)
What is interrupt in 8051 microcontroller?
Interrupts are the events that temporarily suspend the main program, pass the control to the external sources and execute their task. It then passes the control to the main program where it had left off. 8051 has 5 interrupt signals, i.e. INT0, TFO, INT1, TF1, RI/TI.
How many timer is 8051?
two timers
The 8051 has two timers, Timer 0 and Timer 1. They can be used as timers or as event counters. Both Timer 0 and Timer 1 are 16-bit wide.
Which processor is used in 8051?
1. Central processing unit (CPU): 8051 uses the 8-bit processor. This unit carries out the operation on 8-bit data.
How many timers are there in 8051?
The 8051 has two timers, Timer 0 and Timer 1. They can be used as timers or as event counters. Both Timer 0 and Timer 1 are 16-bit wide. Since the 8051 follows an 8-bit architecture, each 16 bit is accessed as two separate registers of low-byte and high-byte.
What is SCON register?
SCON (Serial Control) It is located as an address of 98H. Using SCON, you can control the Operation Modes of the Serial Port, Baud Rate of the Serial Port and Send or Receive Data using Serial Port. SCON Register also consists of bits that are automatically SET when a byte of data is transmitted or received.
How important are 8051 microcontroller questions for campus placement test?
These 8051 Microcontroller Questions are very important for campus placement test and job interviews. As per my experience good interviewers hardly plan to ask any particular questions during your Job interview and these model questions are asked in the online technical test and interview of many IT & Non IT Industries.
What are some of the 8051 microcontroller manufacturers?
List some of the 8051 microcontroller manufacturers? Maxim/Dellas semiconductor 35. What is difference between microprocessor and microcontroller? The microprocessor has no ROM, RAM and no I/O ports on the chip itself.
What is the salary of 8051 microcontroller programmer?
Besides, 8051 Microcontroller has occupied the highest place in the arena of programming languages as it offers a range of features to the developers. An 8051 Microcontroller programmer is expected to take pleasure in minimum salary of 48, 000 dollars per annum.
What is the default stack pointer of 8051 microcontroller?
Generally, 8051 used bank1 of internal RAM as the stack so the default stack pointer is 07H.The stack is used for PUSH, POP, CALL, RET instructions and work on the principle of last in first output (LIFO) 5) List some features of 8051 Microcontroller.