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. |
From inside the book
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Page 238
... DELAY A , # 0EH COMNWRT DELAY A , # 01 COMNWRT DELAY A , # 06H COMNWRT DELAY ORG MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV A , # ' N ' ACALL ACALL MOV ACALL AGAIN : SJMP A , # 84H COMNWRT DELAY ...
... DELAY A , # 0EH COMNWRT DELAY A , # 01 COMNWRT DELAY A , # 06H COMNWRT DELAY ORG MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV ACALL ACALL MOV A , # ' N ' ACALL ACALL MOV ACALL AGAIN : SJMP A , # 84H COMNWRT DELAY ...
Page 313
... ACALL DELAY MOV A , # 0EH ACALL ACALL CMDWRT DELAY MOV A , # 01H ACALL CMDWRT ACALL DELAY MOV A , # 06 ACALL CMDWRT ACALL DELAY MOV A , # ' N ' ACALL DATAWRT ACALL DELAY MOV A , # ' O ' ACALL DATAWRT ACALL DELAY ; all 8255 ports as ...
... ACALL DELAY MOV A , # 0EH ACALL ACALL CMDWRT DELAY MOV A , # 01H ACALL CMDWRT ACALL DELAY MOV A , # 06 ACALL CMDWRT ACALL DELAY MOV A , # ' N ' ACALL DATAWRT ACALL DELAY MOV A , # ' O ' ACALL DATAWRT ACALL DELAY ; all 8255 ports as ...
Page 317
... ACALL DELAY MOV A , # 00001000B MOVX @ R1 , A ACALL DELAY ; control byte for PC4 = 1 ; load control reg port ; make PC4 = 1 ; time delay for high pulse ; control byte for PC4 = 0 ; make PC4 = 0 A2 - Decoding A7 Circuitry DO D7 8255 WR ...
... ACALL DELAY MOV A , # 00001000B MOVX @ R1 , A ACALL DELAY ; control byte for PC4 = 1 ; load control reg port ; make PC4 = 1 ; time delay for high pulse ; control byte for PC4 = 0 ; make PC4 = 0 A2 - Decoding A7 Circuitry DO D7 8255 WR ...
Contents
CHAPTERS | 1 |
The 8051 Microcontrollers | 23 |
THE 8051 MICROCONTROLLERS 223 Section 1 1 Microcontrollers and Embedded Processors | 24 |
Copyright | |
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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