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What does the cpu address bus provide?

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2019-12-12 09:29:348011browse

What does the cpu address bus provide?

#The cpu address bus provides address signals.

Address Bus (also known as: Address Bus) is a type of computer bus (part), which is used by CPU or units with DMA capabilities to communicate what these units want. Access (read/write) the physical address of a computer memory element/place.

1. Bus bandwidth (bus data transmission rate)

The bandwidth of the bus refers to the amount of data transmitted on the bus per unit time, that is, the maximum steady-state data of MB transmitted per clock transmission rate. Two factors closely related to the bus are the bit width of the bus and the operating frequency of the bus.

2. The bit width of the bus

The bit width of the bus refers to the number of binary data bits that the bus can transmit simultaneously, or the number of bits of the data bus, that is, 32 bits, 64 bits, etc. The concept of bus width. The wider the bit width of the bus, the greater the data transfer rate per second, and the wider the bandwidth of the bus.

3. The operating frequency of the bus

The operating clock frequency of the bus is in MHZ. The higher the operating frequency, the faster the bus operates and the wider the bus bandwidth.

Calculation method of bus bandwidth: bus bandwidth = bus operating frequency * bus bit width / 8.

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