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Which of the following can be used as a chip select?
- a)multifunction I/O port
- b)parallel port
- c)DMA port
- d)memory port
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the following can be used as a chip select?a)multifunction I/...
Explanation: The multifunction I/O port can also be used a chip select for the memory design. The function that the pin performs is set up internally through the use of a function register which internally configures how the external pins are connected internally.
Most Upvoted Answer
Which of the following can be used as a chip select?a)multifunction I/...
Explanation:
Chip Select:
- Chip select (CS) is a signal used to select a specific chip or device in a system that has multiple chips connected to the same bus.
- It is used to enable communication between the microcontroller and the selected chip while disabling communication with other chips.
Multifunction I/O Port as Chip Select:
- A multifunction I/O port can be used as a chip select because it can be configured to generate the chip select signal.
- By setting a specific pin of the I/O port as an output and toggling its state, it can act as a chip select signal to select a particular device.
Parallel Port, DMA Port, and Memory Port:
- While parallel ports, DMA ports, and memory ports can be used for data transfer and communication, they are not typically used directly as chip select signals.
- These ports are usually used for transferring data between devices rather than for selecting a specific device on the bus.
In conclusion, a multifunction I/O port can be used as a chip select by configuring a specific pin as an output and controlling its state to select a particular device. Other ports like parallel port, DMA port, and memory port are more commonly used for data transfer and communication rather than as chip select signals.
Chip Select:
- Chip select (CS) is a signal used to select a specific chip or device in a system that has multiple chips connected to the same bus.
- It is used to enable communication between the microcontroller and the selected chip while disabling communication with other chips.
Multifunction I/O Port as Chip Select:
- A multifunction I/O port can be used as a chip select because it can be configured to generate the chip select signal.
- By setting a specific pin of the I/O port as an output and toggling its state, it can act as a chip select signal to select a particular device.
Parallel Port, DMA Port, and Memory Port:
- While parallel ports, DMA ports, and memory ports can be used for data transfer and communication, they are not typically used directly as chip select signals.
- These ports are usually used for transferring data between devices rather than for selecting a specific device on the bus.
In conclusion, a multifunction I/O port can be used as a chip select by configuring a specific pin as an output and controlling its state to select a particular device. Other ports like parallel port, DMA port, and memory port are more commonly used for data transfer and communication rather than as chip select signals.
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