Microcontrollers Atmel/Central processor theory and architecture

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ALU[edit | edit source]

In simple terms the arithmic logic unit is the foundation of a CPU.

opcodes[edit | edit source]

register mux using op codes[edit | edit source]

Program counter[edit | edit source]

The program counter is a register pointer that points to the next operand in the flash or program memory to execute. It is advanced after each clock cycle and can be reassigned new values to jump or branch.

Stack[edit | edit source]