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Worksheetsunit-2
Total questions: 30
Worksheet time: 30mins
I2C bus consists of ........wires
4
9
6
2
Stop condition
SDA low to high , SCL low
SDA high to low , SCL low
SDA low to high , SCL High
SDA high to low , SCL High
I2C abbreviation
Inter Inbuild Circuit
Inter Integrated Chip
Inter Integrated Circuit
Inbuild Integrated Chip
I2C bus designed by
Motorola
Philips
Intel
Microchip
High speed mode
100 kbps
3.4 MBps
5 MBps
400 kbps
How many devices can be connected using 7 bit addressing
7
256
1024
128
Clock signals are generated by
Master
slave
Master and slave
Microcontroller
I2C is a
Simplex
Half Duplex
Full Duplex
Bidirectional Duplex
Secure digital card application uses which protocol?
UART
SPI
I2C
USART
SPI device communicates in _________
Simplex
Half duplex
Full duplex
Both half and full duplex
Do SPI have/has a single master?
True
False
SPI is described as Asynchronous serial interface.
True
False
How many logic signals are there in SPI?
4
5
6
7
SPI uses how many lines?
1
2
4
8
MOSI means __________
Line for master to send data to the slave
Line for the slave to send data to the master
Line for the clock signal
Line for the master to select which slave to send data to
Which of the following is an advantage of SPI?
No start and stop bits
Use 4 wires
Allows for single master
Error checking is not present
Which of the following is the disadvantage in SPI?
Full duplex communication
Push pull drivers
Unidirectional signals
More pins
SMBUS stands for ___________
Serial Memory Bus
Serial Management Bus
System Management Bus
System Memory Bus
Which has a half duplex communication?
Queued SPI
Microwire
Microwire/plus
Quad SPI
Do SPI have internal flash?
True
False
Which of the following can be used for long distance communication?
I2C
Parallel port
SPI
RS232
Which of the following can affect the long distance communication?
clock
resistor
inductor
capacitor
Which are the serial ports of the IBM PC?
COM1
COM4 and COM1
COM1 and COM2
COM3
Which of the following can provide hardware handshaking?
RS232
Parallel port
Counter
Timer
Which of the following have an asynchronous data transmission?
SPI
RS232
Parallel port
I2C
How many areas does the serial interface have?
1
2
3
4
The RS232 is also known as
UART
SPI
Physical interface
Electrical interface
Which of the following is not a serial protocol?
SPI
I2C
Serial port
RS232
Which of the following is an ideal interface for LCD controllers?
SPI
parallel port
Serial port
M-Bus
How much voltage does the MC1489 can take?
12V
5V
1V
15V
