The 8051 Microcontroller and Embedded Systems, Volume 1
Prentice Hall, 2000 - Digital control systems - 435 pages
For courses teaching the 8051 Microcontoller.
This book uses a step-by-step approach to teach the fundamentals of assembly language programming and interfacing of the 8051 microcontroller. It uses many examples to clarify concepts. Simple, concise examples are utilized to show what action each instruction performs, then a sample is provided to show its application. This text provides a comprehensive understanding of the internal organization of the 8051 registers and resources in a way that sheds the student's fear of assembly language. Whether students become designers of stand-alone systems or complex embedded systems, they will find this text a useful resource.
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... MOV P1 , A MOV A , P1 MOV R7 , A DEALY ACALL MOV A , P1 DELAY MOV R6 , A ACALL MOV A , P1 MOV R5 , A ; A FF hex ; make P1 an input port ; by writing all ls to it ; get data from Pl ; save it in reg R7 ; wait ; get another data from Pl ...
... MOV P1 , A ACALL DELAY MOV A , # 0AAH MOV P1 , A ACALL DELAY BACK SJMP The above code toggles every bit of P1 continuously . We have seen a vari- ation of the above program before . Now we can rewrite the above code in a more efficient ...
... P1.0 - P1.7 are connected to LCD data pins D0 - D7 P2.0 is connected to RS pin of LCD ; P2.1 is connected to R / W ... MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV A , # ' N ' ACALL ACALL MOV ACALL ...
The 8051 Microcontrollers
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors
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