The 8051 Microcontroller and Embedded Systems, Volume 1
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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Example 11-11 Discuss what happens if interrupts INTO , TF0 , and INTI are activated at the same time . Assume priority levels were set by the power - up reset and that the external hardware interrupts are edge - triggered .
Assume that the IP register has all Os . Explain what happens if both TF0 and TF1 are activated at the same time . 71. If both TF0 and TF1 in the IP are set to high , what happens if both are activated at the same time ? 72.
Memory chips have one or more pins called CS ( chip select ) , which must be activated for the memory's contents to be accessed . Sometimes the chip select is also referred to as chip enable ( CE ) . In connecting a memory chip to the ...
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The 8051 Microcontrollers
8051 ASSEMBLY LANGUAGE PROGRAMMING
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