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 210
... enabled by software in order for the microcontroller to respond to them . There is a register called IE ( interrupt enable ) that is responsible for enabling ( unmasking ) and disabling ( masking ) the interrupts . Figure 11-2 shows the ...
... enabled by software in order for the microcontroller to respond to them . There is a register called IE ( interrupt enable ) that is responsible for enabling ( unmasking ) and disabling ( masking ) the interrupts . Figure 11-2 shows the ...
Page 231
... enable every interrupt of the 8051 . 14. Which pin of the 8051 is assigned to the external hardware interrupts INTO ... enabled by the 8051 . 22. In the 8051 , how many bytes of ROM space are assigned to the reset interrupt , and why ...
... enable every interrupt of the 8051 . 14. Which pin of the 8051 is assigned to the external hardware interrupts INTO ... enabled by the 8051 . 22. In the 8051 , how many bytes of ROM space are assigned to the reset interrupt , and why ...
Page 384
... enable control input . By activating the enable , data at the input is transferred to the output . The enable can be an active - low or an active- high . Notice that the enable input for the 74LS244 is an In Out L ( a ) ( b ) H ( c ) ...
... enable control input . By activating the enable , data at the input is transferred to the output . The enable can be an active - low or an active- high . Notice that the enable input for the 74LS244 is an In Out L ( a ) ( b ) H ( c ) ...
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