Microcontroller
Authored by Sajeesh M
Computers
University
Used 107+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is internal RAM memory of 8051 microcontroller?
32 bytes
64 bytes
128 bytes
256 bytes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8051 series has how many 16 bit registers?
2
1
3
0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Register that is used to hold the memory address of the next instruction to be executed is----------------
Program Memory
Program Counter
Control Unit
Instruction Decoder
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which register is used to store the output generated by ALU?
Special Function Register
Timer Register
Accumulator
Stack Pointer
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the microcontroller executes some arithmetic operations, then the flag bits of which register are affected?
PSW
SP
DPTR
PC
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What kind of instructions usually affect the program counter?
Push & Pop
Call & Jump
Call & Return
Return & Jump
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The 8051 microprocessor has ________ parallel I/O ports.
2
3
4
5
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