3 Buses . This is
the third type of components exist within the processor . The main use of the
bus is to transfer any data between components inside the processor or between
the processor and other devices within the computer such as the motherboard.
Buses are divided into three major subtypes :
A. Data bus : This type of bus is used to transfer data bytes between elements within the processor. For example, when the ALU outputs the result registers can be transferred to the data bus . So called because it is responsible for transferring the data bytes only .
B. Address bus : this type of bus is used to fetch some data from memory depending on the number in the address bus . For example, if the address bus has a binary value of 1101. Then obtain the value of the memory at that address. Hence the address bus indicates the processing units where to find the data in memory or where to put the calculated data in memory.
C. Bus Control : This type of bus is used to transfer control signals between processor elements . For example , when an instruction is decoded which has addition operation , you will be informed that the ALU operation is also putting some value on the control bus . When the processor decodes this value will be understood that the operation is also based on the value on the address bus .
. 4 decoders: this type of device is used to indicate that the processor what to do based on the instructions from memory written by the users . So if , for example, certain bytes in memory which corresponds to an instruction addition, the decoder will read and is also known based on the bytes contained then the control lines will be activated to inform the processor that is an addition . Thus, the processor is considered an interface between the memory and the processor.
A. Data bus : This type of bus is used to transfer data bytes between elements within the processor. For example, when the ALU outputs the result registers can be transferred to the data bus . So called because it is responsible for transferring the data bytes only .
B. Address bus : this type of bus is used to fetch some data from memory depending on the number in the address bus . For example, if the address bus has a binary value of 1101. Then obtain the value of the memory at that address. Hence the address bus indicates the processing units where to find the data in memory or where to put the calculated data in memory.
C. Bus Control : This type of bus is used to transfer control signals between processor elements . For example , when an instruction is decoded which has addition operation , you will be informed that the ALU operation is also putting some value on the control bus . When the processor decodes this value will be understood that the operation is also based on the value on the address bus .
. 4 decoders: this type of device is used to indicate that the processor what to do based on the instructions from memory written by the users . So if , for example, certain bytes in memory which corresponds to an instruction addition, the decoder will read and is also known based on the bytes contained then the control lines will be activated to inform the processor that is an addition . Thus, the processor is considered an interface between the memory and the processor.
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