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WorksheetsMicrocontroller
Total questions: 22
Worksheet time: 14mins
Microcontroller is with
Memory
Without memory
May or may not
None of the above
It is used to store data and program.
CPU
RAM
Memory
ROM
What is the LCD used for?
connecting to microcontroller
converting to binary
displaying messages
transmit and receive signals
ADC stand for?
Digital to Anlog converter
Analog to Digital converter
Analog Coverter
To select Register Bank 1, RS1-RS0 Should be
0 0
0 1
1 0
1 1
Program Counter in 8051 is
8 bit wide
16 bit wide
20 bit wide
Name the following image
Program Status Work (PSW)
Program Status Word (PSW)
Program Serial Word (PSW)
Peripheral Status Word (PSW)
How many SFR registers are present in memory
10
12
11
21
which port is used only for INPUT/OUTPUT operation?
PORT 0
PORT 1
PORT 2
PORT 3
8051 microcontrollers are manufactured by which of the following companies?
Atmel
Philips
Intel
All of the mentioned
Which of the following comes under the indexed addressing mode?
MOVX A, @DPTR
MOVC @A+DPTR,A
MOV A,R0
MOV @R0,A
Give the internal RAM size in 8051.
8-bit
1-Byte
4 KB
128 Byte
PIN number of Vcc (supply)?
1
20
40
10
DPTR stands for Data Poniter.
Yes
No
May be
Number of register banks in 8051
8
7
4
10
DPTR holds address of a byte in memory.
No
Yes
May Be
Full form of PSW?
Program Settle word
Program Screen word
Program Status Word
How many timers are present in 8051
2
4
1
Is Port 0 is Special Function Register?
TRUE
FALSE
he number of bits the processor can process at a time is called the _____________ of the processor.
Byte
Sentence Length
Word Length
Bits
