The 8051 Microcontroller and Embedded Systems, Volume 1For 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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Notice that when we add 1 + 1 we get 0 with a carry to the next higher place . We will need to determine the sum and the carry for this design . Notice that the sum column above matches the output for the XOR function , and that the ...
CY , the carry flag This flag is set whenever there is a carry out from the d7 bit . This flag bit is affected after an 8 - bit addition or subtraction . It can also be set to 1 or 0 direct- ly by an instruction such as " SETB C " and ...
... #data Move 2 124 SETB bit Set direct bit 12 immediate CPL C Complement 1 12 22222 data to Carry indirect RAM CPL bit Complement 2 122 MOV DPTR , # data16 Load Data 24 direct bit Pointer with a ANL C , bit AND direct bit 2 24 16 ...
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Contents
CHAPTERS | 1 |
The 8051 Microcontrollers | 23 |
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors | 24 |
Copyright | |
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Other editions - View all
The 8051 Microcontroller and Embedded Systems: Using Assembly and C Mazidi Muhammad Ali No preview available - 2007 |