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WorksheetsGPIO - Quiz
Total questions: 25
Worksheet time: 13mins
What is the LPC2148?
A 64-bit Microcontroller
A 32-bit Microcontroller
A 16-bit Microcontroller
A 8-bit Microcontroller
Which company manufactures the LPC2148?
Microchip Technology
Texas Instruments
NXP Semiconductors
Intel
What does GPIO stand for?
General Purpose Integrated Output
General Purpose Input Output
General Purpose Integrated Operation
General Purpose Input Operation
How many IO ports does LPC2148 have?
4
1
2
3
What is the function of the IODIR register?
To set the direction of GPIO pins
To set the output of GPIO pins
To read the current status of GPIO pins
To clear the output of GPIO pins
Which pin of PORT0 is an output-only pin?
P0.24
P0.31
P0.0
P0.15
What does the IOSET register do?
Sets a port pin to logic LOW
Clears a port pin to logic LOW
Sets a port pin to logic HIGH
Reads the current status of GPIO pins
What is the purpose of the delay function in the LED blinking program?
To initialize the GPIO pins
To create a pause between LED states
To read the status of the switch
To increase the speed of the program
Which register controls the output of PORT1 pins?
IODIR1
IODIR0
IOSET1
IOSET0
What is the role of a resistor when connecting an LED to a GPIO pin?
To provide a ground connection
To decrease the voltage
To limit the current
To increase the voltage
What happens when a switch is pressed in the switch programming?
The GPIO pin is turned on
The GPIO pin is turned off
The GPIO pin reads LOW
The GPIO pin reads HIGH
Which of the following is NOT a function of GPIO pins?
Reading digital signals
Driving loads
Generating triggers
Storing data
What is the purpose of the PINSEL register?
To read the status of GPIO pins
To configure the function of GPIO pins
To control the direction of GPIO pins
To set the output of GPIO pins
In the LPC2148, how many bits are used for each I/O port?
8 bits
32 bits
64 bits
16 bits
What is the function of the IOCLR register?
To set the direction of GPIO pins
To set a port pin to logic HIGH
To clear a port pin to logic LOW
To read the current status of GPIO pins
Which of the following is a type of device that can be interfaced using GPIO?
Microcontroller
LED
Computer
Transistor
What is the maximum number of pins available for user in PORT0?
16
28
32
30
What is the primary use of a buzzer in embedded systems?
To display information
To produce sound
To store data
To control motors
What is the effect of setting a bit to 0 in the IODIR register?
The pin acts as an Output
The pin is set to HIGH
The pin acts as an Input
The pin is disabled
What is the purpose of the pull-up resistor in switch programming?
To limit the current
To define the default state
To connect to ground
To increase the voltage
In the flash program, what does the command IO1CLR do?
Sets the output to HIGH
Clears the output to LOW
Reads the input status
Initializes the GPIO pins
What is the main function of the LPC2148 in embedded systems?
To perform complex calculations
To control and interface with various devices
To store large amounts of data
To provide high-speed processing
Which of the following is a characteristic of the LPC2148?
It is a 16-bit microcontroller
It has a 64-bit architecture
It has no GPIO capabilities
It is easy to work with for beginners
What is the primary function of the delay function in the LED programs?
To set the output of GPIO pins
To initialize the GPIO pins
To create a pause between LED states
To read the status of the switch
What is the role of the IOPIN register?
To set the direction of GPIO pins
To read from or write to the port pins directly
To clear the output of GPIO pins
To configure the function of GPIO pins
