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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Page 69
In the 8051 there are two unconditional jumps : LJMP ( long jump ) and SJMP ( short jump ) . Each is discussed below . LJMP ( long jump ) LJMP is an unconditional long jump . It is a 3 - byte instruction in which the first byte is the ...
In the 8051 there are two unconditional jumps : LJMP ( long jump ) and SJMP ( short jump ) . Each is discussed below . LJMP ( long jump ) LJMP is an unconditional long jump . It is a 3 - byte instruction in which the first byte is the ...
Page 266
ROW 0 : MOV DPTR , #KCODEO ; set DPTR = start of row 0 SJMP FIND ; find col . key belongs to ROW 1 : MOV DPTR , # KCODE1 ... if zero , get the ASCII code INC DPTR ; point to next col . address SJMP FIND ; keep searching MATCH : CLR A ...
ROW 0 : MOV DPTR , #KCODEO ; set DPTR = start of row 0 SJMP FIND ; find col . key belongs to ROW 1 : MOV DPTR , # KCODE1 ... if zero , get the ASCII code INC DPTR ; point to next col . address SJMP FIND ; keep searching MATCH : CLR A ...
Page 341
LJMP 16 - bit addr also : SJMP 8 - bit addr Function : Transfers control unconditionally to a new address . In the 8051 there are two unconditional jumps : LJMP ( long jump ) and SJMP ( short jump ) . Each is described next . 1.
LJMP 16 - bit addr also : SJMP 8 - bit addr Function : Transfers control unconditionally to a new address . In the 8051 there are two unconditional jumps : LJMP ( long jump ) and SJMP ( short jump ) . Each is described next . 1.
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Contents
CHAPTERS | 1 |
The 8051 Microcontrollers | 23 |
8051 ASSEMBLY LANGUAGE PROGRAMMING | 35 |
Copyright | |
18 other sections not shown
Other editions - View all
The 8051 Microcontroller and Embedded Systems: Using Assembly and C Mazidi Muhammad Ali No preview available - 2007 |
Common terms and phrases
ACALL accumulator activated addition addressing mode ASCII assembler assigned Assume BACK bank baud rate binary bit addresses byte called carry Chapter chip clear command communication connected contents convert counter cycle decimal delay devices direct discussed DJNZ DPTR enable Example execution external Figure Find flag frequency Function gates ground hardware indicate input instruction interfacing internal interrupt jump latch load logic loop machine memory microcontroller mode MOVX Note Notice on-chip operand operation output pointer port provides pulse RAM location receive referred result serial SETB Show shown signal SJMP Solution space stack steps stop subroutine Table timer transfer True or false Write a program XTAL
Bibliographic information
| Title | The 8051 Microcontroller and Embedded Systems, Volume 1 The 8051 Microcontroller and Embedded Systems, Muhammad Ali Mazidi |
| Authors | Muhammad Ali Mazidi, Janice Gillispie Mazidi |
| Edition | illustrated |
| Publisher | Prentice Hall, 2000 |
| Original from | the University of Michigan |
| Digitized | 5 Aug 2011 |
| ISBN | 0138610223, 9780138610227 |
| Length | 435 pages |
| Subjects | › House & Home / Equipment, Appliances & Supplies |
| Export Citation | BiBTeX EndNote RefMan |