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Why is data bus bidirectional but address bus is unidirectional?
since data can be read /write from/to the microprocessor, hence data bus is bidirectional. if data is required read from microprocessor then it will be pointing to a memory location by the address bus, by indicating which location data its required to read. similarly to write a data to a location, again the microprocessor will be to that particular location by holding that address in address bus. hence it will be unidirectional.
Is data flow bidirectional or unidirectional?
Data flow is always bidirectional my friend, don't confuse.
Why is data bus bidirectional but address bus unidirectional?
The address bus is unidirectional becos address information is always given by microprocessor to i/o devices. The data bus is bidirectional bcos it takes the data from other devices & also give the data to other i/o devices
Need of bidirectional data bus?
A data should be either WRITTEN to a memory or should be READ from a memory (both direction)and so the data bus is bidirectional.
Why can't an address bus be bidirectional?
An address bus cannot be bidirectional because it is designed to carry signals from the central processing unit (CPU) to memory or I/O devices, specifying the address of the data to be accessed. Allowing bidirectional communication would complicate the bus design and synchronization, as it would require mechanisms to manage which device is sending and receiving data at any given time. This could lead to conflicts and increased complexity in circuit design, which is why the address bus is typically unidirectional.
Are relays unidirectional or bidirectional devices?
Relays are bidirectional devices.
Which bus is unidirectional and why?
The control and high order address buses are unidirectional.
What is bidirectional bus?
A bus in this context is a data route which can carry data in both directions.
What is the difference between unidirectional buffer and bidirectional buffer?
A bi-directional buffer includes first and second unidirectional buffers connected for retransmitting signals in opposite directions between first and second buses. When an external bus driver pulls the first bus low, the first unidirectional buffer pulls the second bus low and generates a signal inhibiting the second unidirectional buffer from actively driving the first bus. When the external bus driver allows the first bus to return to the high logic level, the first unidirectional buffer temporarily supplies a high charging current to the second bus to quickly pull it up. Similarly, when an external bus driver pulls the second bus low, the second unidirectional buffer pulls the first bus low and generates a signal inhibiting the first unidirectional buffer from actively driving the second bus. When the external bus driver allows the second bus to return to the high logic level, the second buffer temporarily supplies a high charging current to the first bus to quickly pull it up. The bi-directional buffer includes a register for storing and reading out data representing successive logic states of a signal on the first bus, thereby providing a history of data appearing on the bus
Why data bus is bidirectional bus in Intel 4004?
A data bus is bidirectional because the processor needs it to both read and write. Also, in the case of the 4004, the data bus was tri-multiplexed with the 12 bit address bus and the 8 bit opcode bus.
Why is a diode called bidirectional?
Its not, a diode is unidirectional.
Is alternating current unidirectional or bidirectional?
Bidirestional
