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 217
... INT1 ( pin P3.3 ) is activated , the microcontroller gets out of the loop and jumps to vector location 0013H . The ISR for INT1 turns on the LED , keeps it on for a while , and turns it off before it returns . If by the time it executes ...
... INT1 ( pin P3.3 ) is activated , the microcontroller gets out of the loop and jumps to vector location 0013H . The ISR for INT1 turns on the LED , keeps it on for a while , and turns it off before it returns . If by the time it executes ...
Page 218
... INT1 bits in the IE registers are enabled . After the hardware interrupts in the IE register are enabled , the controller keeps sampling the INTn pin for a low - level signal once each machine cycle . According to one manufacturer's ...
... INT1 bits in the IE registers are enabled . After the hardware interrupts in the IE register are enabled , the controller keeps sampling the INTn pin for a low - level signal once each machine cycle . According to one manufacturer's ...
Page 229
... INT1 ( external interrupt 1 ) , then ( b ) discuss what happens if INTO , INT1 , and TFO are activated at the same time . Assume that the interrupts are both edge - triggered . Solution : ( a ) MOV IP , # 00000100B ; IP.2 = 1 to ...
... INT1 ( external interrupt 1 ) , then ( b ) discuss what happens if INTO , INT1 , and TFO are activated at the same time . Assume that the interrupts are both edge - triggered . Solution : ( a ) MOV IP , # 00000100B ; IP.2 = 1 to ...
Contents
CHAPTERS | 1 |
The 8051 Microcontrollers | 23 |
THE 8051 MICROCONTROLLERS 2323 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, 2/E Muhammad Ali Mazidi,Mazidi 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 transistors True or false voltage Write a program