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 146
... SETB PO 90H " since P1.0 has the RAM address of 90H . From Figure 8- 1 we see that the bit addresses for PO are 80H ... SETB 86H ( d ) SETB 0A7H ( b ) CLR 87H ( c ) SETB 92H ( e ) CLR OF2H ( f ) SETB 0E7H Solution : ( a ) SETB 86H is for ...
... SETB PO 90H " since P1.0 has the RAM address of 90H . From Figure 8- 1 we see that the bit addresses for PO are 80H ... SETB 86H ( d ) SETB 0A7H ( b ) CLR 87H ( c ) SETB 92H ( e ) CLR OF2H ( f ) SETB 0E7H Solution : ( a ) SETB 86H is for ...
Page 150
... SETB 20 ( b ) CLR 32 ( d ) SETB 95H ( e ) SETB OE6H 8. While bit addresses 00- 7FH belong to belong to ( c ) SETB 12H bit addresses 80 - F7H 9. True or false . P0 , P1 , P2 , and P3 are part of SFR . 10. True or false . Register TCON is ...
... SETB 20 ( b ) CLR 32 ( d ) SETB 95H ( e ) SETB OE6H 8. While bit addresses 00- 7FH belong to belong to ( c ) SETB 12H bit addresses 80 - F7H 9. True or false . P0 , P1 , P2 , and P3 are part of SFR . 10. True or false . Register TCON is ...
Page 352
... SETB C RRC A ; CY = 1 ; A = 10011001 ; Now A = 11001100 and CY = 1 ; CY = 1 ; Now A = 11100110 and CY = 0 SETB bit Function : Set bit This sets high the indicated bit . The bit can be the carry or any directly addressable bit of a port ...
... SETB C RRC A ; CY = 1 ; A = 10011001 ; Now A = 11001100 and CY = 1 ; CY = 1 ; Now A = 11100110 and CY = 0 SETB bit Function : Set bit This sets high the indicated bit . The bit can be the carry or any directly addressable bit of a 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