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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... Decoders Another example of the application of logic gates is the decoder . Decoders are widely used for address decoding in com- puter design . Figure 0-7 shows decoders for 9 ( 1001 binary ) , and 5 ( 0101 ) using invert- ers and AND ...
... DECODING In this section we discuss address decoding . The CPU provides the address of the data desired , but it is the ... decoder selects a given memory block . There are three ways to generate a memo- ry block selector : ( a ) using ...
... decoder . DO D7 YO O A12 A13 A14 ABC Α Y10 Y2 O AO - A11 Y30 A15 G2A Y4 0- GND G2B Y50 Vcc G1 Y6 O Y70 MEMR Vcc D7 DO A0 4Kx8 A11 CE OE Vpp Figure 14-6 . 74LS138 as Decoder Example 14-6 Looking at the design in Figure 14-6 , find the ...
The 8051 Microcontrollers
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors
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