2.1.1 Basic Microprocessor Design

  • A CPU has registers, clock, control unit, and arithmetic logic unit
    • Registers: Store data
    • Clock: Synchronizes internal operations of CPU with other system components
    • ALU: Performs arithmetic operations such as addition subtraction and Boolean operations
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Basic Microcomputer block diagram

  • Memory Storage Unit: Stores instructions and data during execution
    • The MMU manages this.
  • The control bus uses binary signals to synchronize actions of all devices attached to the system bus.
  • The address bus holds the addresses of instructions and data when the currently executing instruction transfers data between the CPU and memory.

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