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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Stack in the 8051 The stack is a section of RAM used by the CPU to store information tem- porarily . This information could be data or an address . The CPU needs this stor- age area since there are only a limited number of registers .
Popping from the stack Popping the contents of the stack back into a given register is the opposite process of pushing . With every pop , the top byte of the stack is copied to the reg- ister specified by the instruction and the stack ...
Example 2-10 Show the stack and stack pointer for the following instructions . MOV SP , # 5FH ; make RAM location 60H ; first stack location MOV R2 , # 25H MOV R1 , # 12H MOV R4 , # 0F3H PUSH 2 PUSH 1 Solution : PUSH 4 63 62 61 60 After ...
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The 8051 Microcontrollers
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors
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