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 72
To make sure that after execution of the called subroutine the 8051 knows where to come back to , it automatically saves on the stack the address of the instruction immediately below the LCALL . When a subroutine is called , con- trol ...
To make sure that after execution of the called subroutine the 8051 knows where to come back to , it automatically saves on the stack the address of the instruction immediately below the LCALL . When a subroutine is called , con- trol ...
Page 73
The last instruction of the called subroutine must be a RET instruction which directs the CPU to POP the top bytes of ... 0A 09 00 08 07 SP = 09 Use of PUSH and POP instructions in subroutines Upon calling a subroutine , the stack keeps ...
The last instruction of the called subroutine must be a RET instruction which directs the CPU to POP the top bytes of ... 0A 09 00 08 07 SP = 09 Use of PUSH and POP instructions in subroutines Upon calling a subroutine , the stack keeps ...
Page 238
4 ; call command subroutine ; give LCD some time ; display letter N ; call display subroutine . give LCD some time ; display letter O ; call display subroutine ; stay here ; send command to LCD ; copy reg A to portl ; RS = 0 for command ...
4 ; call command subroutine ; give LCD some time ; display letter N ; call display subroutine . give LCD some time ; display letter O ; call display subroutine ; stay here ; send command to LCD ; copy reg A to portl ; RS = 0 for command ...
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Contents
CHAPTERS | 1 |
The 8051 Microcontrollers | 23 |
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors | 24 |
Copyright | |
19 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 ACALL DELAY addr addressing mode ASCII Assembly language baud rate binary bit addresses carry flag Chapter CJNE connected convert data pins decimal decoder discussed DJNZ DPTR EPROM Example execution external interrupt Figure flag bit frequency I/O ports instruction INT1 Intel interfacing interrupt vector table jump latch LCALL LJMP load logic loop machine cycle memory chip memory location microcontroller microprocessor MOV P1 MOV RO MOVX Notice NV-RAM on-chip ROM opcode operand output pointer program counter PSEN pull-up resistors pulse RAM location register bank reset Review Questions SBUF SECTION serial communication SETB TR1 Show signal SJMP Solution square wave stack stepper motor stop bit SUBB subroutine target address TCON timer Timer/counter TMOD transfer transistors True or false voltage Write a program
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 |
| Export Citation | BiBTeX EndNote RefMan |