(chapter 6) 8051 MicroController

(chapter 6) 8051 MicroController - Chapter 6 8051...

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Chapter 6 8051 MicroController
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Introduction It contains; CPU RAM ROM Timer/Counter Paraller/Serial I/O ports Microcontroller also called “ computer on a chip”. Most efficiently used in the systems that have fixed program for a dedicated application such as; Keyboard for personal computer to scan and decode keys. Used in an automobile for sensing and controlling engine operation. Microwave Ovens. Video Cassette recorders, gas pump, etc.
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8051 Architecture
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Architecture It has 40 pin IC. 32 pins are needed for the four I/O ports. 8051 handles the overlapping address spaces used by internal memory , external memory and the special function registers . Many functions applied on a single chip, insists designers has to design multiple functions at each of the internal address spaces and external pins.
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8051 Pin Configuration
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8051 Ports They are 4 different ports; Port 0 Port 1 Port 2 Port 3 Those ports has different functions.
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  • Fall '15
  • professor
  • Microprocessor, Central processing unit, i/o ports, bit bidirectional I/O

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