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The address bus is used by the processor in a computer to locate a piece of data from the RAM (Random Access Memory) that it needs to access. No real data is carried via the address bus, as this is the job of the Data Bus.
The pieces of data that the address bus locates are called "addresses" and the address bus transfers "data addresses" to and from the control unit.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThere are genrally two kinds of buses in the cpu(microprocessor).data bus and address bus.the data bus is used to carry the data or information whereas address bus is used to carry addresses of the operand in case which is being required fro any kind of operation to be performed.the address bus is of generally 8bit
Anand bhat(mca@kiit-870024)
Wiki User
∙ 11y agoAn address bus is a computer bus (a series of lines connecting two or more devices) that is used to specify a physical address. When a processor or DMA-enabled device needs to read or write to a memory location, it specifies that memory location on the address bus (the value to be read or written is sent on the data bus). The width of the address bus determines the amount of memory a system can address. For example, a system with a 32-bit address bus can address 232 (4,294,967,296) memory locations. If each memory address holds one byte, the addressable memory space is 4 GB.
Wiki User
∙ 13y agoAn address bus carries memory addresses so that Data can be transported and deposited/retrieved from the correct places.
Wiki User
∙ 13y agoAn address bus gives the memory instructions on where to store the data or where to recover it from.
Wiki User
∙ 13y agoThe bits of address bus inform the memory(Ram) which particular element is to be read or write in memory.
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∙ 10y agoform processor to an extension card ;)
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What is the purpose of the address bus?
An address bus carries memory addresses so that Data can be transported and deposited/retrieved from the correct places.
What is an address bus in a microprocessor?
The address bus is a section of the bus that emits the address of the desired instruction or operand.
Is the address bus a single direction bus?
Yes, the address bus is uni-directional.
What is the size of address bus in 8086?
The address bus in the 8085 is 16 bits wide.
What is a bus specify the function of address bus and direction of information flow on the address bus?
A bus is a collection of conducting wires which connect the processor and other devices in parallel scheme. The function of an address bus is to carry the address of the memory locations from the processor to the memory device, the address bus is unidirectional(only in one direction) in this processor so the flow of information on this bus is from the microprocessor to the attached device(memory module).
Size of 8086 address bus?
The 8086/8088 has an internal 20-bit address bus and 16-bit data bus. Externally, the address bus is 20-bits, and the data bus is 16-bits for the 8086 and 8-bits for the 8088.The data bus in the 8086 is 16 bits in size, while the address bus is 20.
What is the purpose of a bus shelter?
function of a bus shelter
Why 4 bit address bus is grounded?
The data bus in the 8086 is 16 bits in size, while the address bus is 20 (16bits would only address 64KB of memory, an extra 4 bits allows to address the total of 1MB, this is done trough segmentation of the memory). To form a multiplexed of data bus and address bus, four bits of 8086 address bus are grounded.
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
How do you demultiplex address and data bus?
In order to demultiplex the address and data bus, you provide latches that sample the multiplexed bus. At ALE=true, they follow the bus. At ALE=falling edge, they lock onto the last value of the bus. The latches will then become the address bus, while the original bus becomes the data bus.
Distinguish in between data bus system bus address bus?
A data bus system is a way that mass amounts of information can be transferred to a location. The bus address is the location that this information arrives at.
How many bits of address bus are required to address 1mb memory?
You need 20 bits of address bus to address 1 Mb of memory.
