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 218
... TCON register . The TCON register holds , among other bits , the ITO and IT1 flag bits that determine level- or edge - triggered mode of the hardware inter- rupts . ITO and IT1 are bits DO and D2 of the TCON register , respectively ...
... TCON register . The TCON register holds , among other bits , the ITO and IT1 flag bits that determine level- or edge - triggered mode of the hardware inter- rupts . ITO and IT1 are bits DO and D2 of the TCON register , respectively ...
Page 221
... TCON register ( TCON.1 or TCON.3 ) . This informs us that the service routine is no longer in progress and has fin- ished being serviced . For this reason , TCON.1 and TCON.3 in the TCON reg- ister are called interrupt - in - service ...
... TCON register ( TCON.1 or TCON.3 ) . This informs us that the service routine is no longer in progress and has fin- ished being serviced . For this reason , TCON.1 and TCON.3 in the TCON reg- ister are called interrupt - in - service ...
Page 222
Muhammad Ali Mazidi, Janice Gillispie Mazidi. IEO and IE1 TCON.1 and TCON.3 are referred to as IEO and IE1 , respectively . These bits are used by the 8051 to keep track of the edge - triggered interrupt only . In other words if the ITO ...
Muhammad Ali Mazidi, Janice Gillispie Mazidi. IEO and IE1 TCON.1 and TCON.3 are referred to as IEO and IE1 , respectively . These bits are used by the 8051 to keep track of the edge - triggered interrupt only . In other words if the ITO ...
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