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 160
If C / T = 0 , the crystal frequency attached to the 8051 is the source of the clock for the timer . This means that the size of the crystal frequency attached to the 8051 also decides the speed at which the 8051 timer ticks .
If C / T = 0 , the crystal frequency attached to the 8051 is the source of the clock for the timer . This means that the size of the crystal frequency attached to the 8051 also decides the speed at which the 8051 timer ticks .
Page 170
Example 9-14 Assuming that XTAL = 11.0592 MHz , find ( a ) the frequency of the square wave gen- erated on pin P1.0 in the following program , and ( b ) the smallest frequency achievable in this program , and the TH value to do that .
Example 9-14 Assuming that XTAL = 11.0592 MHz , find ( a ) the frequency of the square wave gen- erated on pin P1.0 in the following program , and ( b ) the smallest frequency achievable in this program , and the TH value to do that .
Page 201
Baud rates for SMOD = 0 When SMOD = 0 , the 8051 divides 1/12 of the crystal frequency by 32 and uses that frequency for timer 1 to set the baud rate . In the case of XTAL = 11.0592 MHz we have : Machine cycle freq .
Baud rates for SMOD = 0 When SMOD = 0 , the 8051 divides 1/12 of the crystal frequency by 32 and uses that frequency for timer 1 to set the baud rate . In the case of XTAL = 11.0592 MHz we have : Machine cycle freq .
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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 |