Introduction - If you have any usage issues, please Google them yourself
Instruction Register: The trigger is edge triggered clock, the register will be sent to the instruction data bus into the register accumulator for storing the current results, it is also a source of data binary operator arithmetic logic operation unit 8 according to the input different realization of corresponding processing operation code, AND, XOR, or 8 kinds of basic operations such as computing state controller is actually a state machine, which is the control of CPU core, used to generate a series of control signals to start or to stop some of the components. CPU when the read instruction, read and write I/O ports, read the data on the ROM and other operations are controlled by the state machine