CHAPTER 5:BUS SYSTEMS - created from Mind Map

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DATA BUS

ADDRESS BUS

CONTROL BUS

INTERNAL AND EXTERNAL BUSES

BUS HIERARCHY

-A path for moving data among system modules

-The width of the data bus is a key factor in determining overall system performances.

-Used to designate the source of destination on the data bus.

-Carries addresses from register to memory

-Control signals transmits command and timing information among system modules

-Timing signals indicate validity of data and address information

-Command signals specify operations to be performed

INTERNAL BUS

EXTERNAL BUS

-Located within a CPU chip for communication among the components in CPU chip

-Supported by third party hardware and software

Processor Bus

Cache Bus

Memory Bus

Local I/O Bus

Standard I/O Bus