Transcription of Chapter 1: Introduction to PIC18 The PIC18 Microcontroller ...
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The PIC18 MicrocontrollerChapter 1: Introduction to PIC18 The PIC18 MicrocontrollerHan-Way HuangMinnesota State University MankatoMinnesota State University, MankatoH. Huang Transparency @ 2005 Thomson Delmar LearningThe PIC18 MicrocontrollerWhat is a computer?SoftwareHardwareHardwareCompute r Hardware OrganizationProcessorControl UnitCo m m on Bus (address, data, & co ntrol)DatapathArithm eticLogic UnitMemoryRegistersProgramStorageDataSto rageOutputUnitsInputUnitsH. Huang Transparency @ 2005 Thomson Delmar LearningFigure 1 .1 Com puter Organizatio nThe PIC18 MicrocontrollerThThe processorRegisters -- storage locations in the processorArithmetic logic unitArithmetic logic unitControl unitprogram countercontains the address of the next instruction to be executedpgstatus registerflags the instruction execution resultThe microprocessorA processor implemented on a very large scale integration (VLSI) chipPeripheral chips are needed to construct
The PIC18 Microcontroller Embedded SystemsEmbedded Systems - A product that uses one or more microcontrollers as controller (s). - End users are only interested in the functionality of the product but not on the microcontroller itself. - Cell phones, home security system, automobiles, and many other products are examples of embedded products.
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