Which command is used to request control on the bus
Correct answer: A. Bus request
- A. Bus request
- B. Bus grant
- C. Both a, b
- D. Bus clock
Explanation
Bus request is the signal sent by a device to indicate that it wants to gain control of the bus and transmit data. When a device has data to send, it asserts the bus request line. The bus controller arbitrates among competing requests and grants control to one device at a time. So, option (a) is correct. Therefore, the most appropriate answer is (a) Bus request. It is the initial signal sent by a device to request control of the bus.
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