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 161
... stop of the timer are controlled by way of software by the TR ( timer start ) bits TRO and TR1 . This is achieved by the instructions " SETB TR1 " and " CLR TR1 " for timer 1 , and " SETB TRO " and " CLR TRO " for timer 0. The SETB ...
... stop of the timer are controlled by way of software by the TR ( timer start ) bits TRO and TR1 . This is achieved by the instructions " SETB TR1 " and " CLR TR1 " for timer 1 , and " SETB TRO " and " CLR TRO " for timer 0. The SETB ...
Page 186
... stop bits . This is called framing . In data framing for asynchronous communica- tions , the data , such as ASCII characters , are packed in between a start bit and a stop bit . The start bit is always one bit but the stop bit can be ...
... stop bits . This is called framing . In data framing for asynchronous communica- tions , the data , such as ASCII characters , are packed in between a start bit and a stop bit . The start bit is always one bit but the stop bit can be ...
Page 195
... stop bit in mode 1. Must be cleared by software . Receive interrupt flag . Set by hardware halfway through the stop bit time in mode 1. Must be cleared by software . Note : Make SM2 , TB8 , and RB8 = 0 . Figure 10-9 . SCON Serial Port ...
... stop bit in mode 1. Must be cleared by software . Receive interrupt flag . Set by hardware halfway through the stop bit time in mode 1. Must be cleared by software . Note : Make SM2 , TB8 , and RB8 = 0 . Figure 10-9 . SCON Serial Port ...
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, 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 transfer transistors True or false voltage Write a program