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Microcontroller
Quiz 2
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Q.1
Choose the devices that are using a microcontroller
Microwave
Fridge
Sand Clock
Both A & B
Q.2
Size of on chip ROM
128 bytes
256 bytes
4K bytes
64K bytes
Q.3
How many SFRs are available ?
10
11
12
21
Q.4
Initial Address of stack memory
05H
06H
07H
08H
Q.5
Bit addressable location available in RAM
8 bytes
16 bytes
32 bytes
128 bytes
Q.6
How many interrupt sources available in 8051?
4
5
10
15
Q.7
Which of the following are 8 bit registers?
PSW
ACCUMULATOR (A reg)
DPTR
Both A & B
Q.8
The registers of Timer 1 are accessed as
TL0 & TL1
TH0 & TH1
TL0 & TH0
TL1 & TH1
Q.9
The timers of theare
4 bit
8 bit
16 bit
32 bit
Q.10
How many register bank in 8051?
1
2
3
4
Q.11
Full form of DJNZ ?
Decrease Just Number Zero
Decrement Jump Not equal to Zero
Data Jump New address if Zero
Delete and Jump to Number Zero
Q.12
Which of the following are assembler directives?
ORG
CALL
Both A & B
Q.13
Pin number of Vcc?
20
40
1`
10
Q.14
DPTR stands for
Discrete Pointer
Display Pointer
Data Pointer
Default Pointer
Q.15
Select the characteristics of Assembler directives
Pseudo instruction
gives directions to assembler
executable instruction
Both A & B
Q.16
In structure of ASM which field is Mnemonic
label
operand
comment
opcode
Q.17
Which language is used for programming 8051?
Assembly Language
Machine Language
C Language
English Language
Q.18
Which file type is finally burnt in the ROM
.abs
.asm
.hex
.lst
Q.19
How many types of addressing mode are there in 8051?
5
4
3
2
Q.20
CJNE stands for
Comment & Jump if Number Enable
Compare & Jump if Not Equal
Carry bit Just if Number Equal
0 h : 0 m : 1 s
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