There are many things that are very complex to do by the micro processor. In the picture you can see an example block diagram of a system of micro processor minimum.
Address bus: the bus is microprocessor (µP) issued the address of a memory location of the I / O to store or read data. Data bus: the bus is microprocessor can send the contents of registers to memory or I / O, and receive data from memory or I / O.
Control bus: the bus is a signal microprocessor control - memory read / out, I / O read / write, interrupt acknowledge - to activate the device (memory or I / O) so that the output of the device is connected to the data bus. On this bus microprocessor also receives control signals from the device, interrup, reset.
Saturday, August 25, 2012
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