MikroElektronika PIC Microcontrollers PIC16 Specifikace Strana 67
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- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
http://www.mikroelektronika.co.yu/english/product/books/PICbook/4_Poglavlje.htm
4.17 ENDC End of constant block definition
Syntax:
endc
Description:
Directive was used at the end of a definition of a block of constants so assembly translator could
know that there are no more constants.
Similar directives: CBLOCK
4.18 DB Defining one byte data
Syntax:
[<label>]db <term> [, <term>,.....,<term>]
Description:
Directive reserves a byte in program memory. When there are more terms which need to be
assigned a byte each, they will be assigned one after another.
Example:
db 't', 0×0f, 'e', 's', 0×12
Similar instructions: DE, DT
4.19 DE Defining the EEPROM memory byte
Syntax:
[<term>] de <term> [, <term>,....., <term>]
Description:
Directive is used for defining EEPROM memory byte. Even though it was first intended only for
EEPROM memory, it could be used for any other location in any memory.
Example:
org H'2100'
de "Version 1.0" , 0
Similar instructions: DB, DT
4.20 DT Defining the data table
Syntax:
[<label>] dt <term> [, <term>,........., <term>]
Description:
Directive generates RETLW series of instructions, one instruction per each term.
Example:
dt "Message", 0
dt first, second, third
Similar directives: DB, DE
Configurational directives
4.21 _CONFIG Setting the configurational bits
Syntax:
http://www.mikroelektronika.co.yu/english/product/books/PICbook/4_Poglavlje.htm (11 of 15) [4/2/2003 16:18:10]
- C o n t e n t s 1
- PIC book 2
- Send us a comment about a 5
- CHAPTER 1 6
- 1.2 Central Processing Unit 8
- 1.1 Memory unit 8
- 1.3 Bus 9
- 1.4 Input-output unit 10
- 1.5 Serial communication 10
- 1.6 Timer unit 11
- 1.7 Watchdog 11
- 1.9 Program 13
- CHAPTER 2 15
- CISC, RISC 16
- Applications 17
- Clock / instruction cycle 17
- Pipelining 17
- Pin description 18
- Types of oscillators 20
- XT Oscillator 20
- RC Oscillator 20
- 2.2 Reset 23
- 2.3 Central Processing Unit 25
- Arithmetic Logic Unit (ALU) 25
- STATUS Register 27
- OPTION register 28
- 2.4 Ports 31
- 2.5 Memory organization 33
- Program memory 33
- Data memory 33
- SFR registers 33
- Memory Banks 34
- Program Counter 35
- In System Programming 35
- Addressing modes 35
- Direct Addressing 35
- Indirect Addressing 36
- 2.6 Interrupts 38
- INTCON Register 38
- Interrupt initialization 43
- 2.7 Free-run timer TMR0 45
- OPTION Control Register 48
- 2.8 EEPROM Data memory 50
- EECON1 Register 50
- Reading from EEPROM Memory 51
- Writing to EEPROM Memory 51
- CHAPTER 3 53
- Arithmetic and logic 54
- Bit operations 54
- Directing a program flow 54
- Instruction Execution Period 55
- Word list 55
- Chapter 3 - Instruction Set 56
- CHAPTER 4 57
- Introduction 58
- Assembly language 59
- Instructions 59
- Operands 60
- Comments 60
- Directives 60
- Data Directives 66
- CHAPTER 5 72
- Chapter 5 - MPLAB 73
- Screen prior to installment 79
- Installment flow 80
- 5.2 MPLAB 82
- 5.4 Designing a project 85
- Adjusting project elements 86
- Opening a new project 88
- Assembler file added 88
- 5.6 Writing a program 91
- 5.7 MPSIM Simulator 93
- 5.8 Toolbar 95
- Toolbar icon description 95
- CHAPTER 6 98
- Macros used in programs 100
- Macros WAIT, WAITX 100
- Macro PRINT 101
- Chapter 6 - Samples 102
- Samples 104
- Light-Emitting Diodes - LEDs 104
- Keyboard 107
- Optocoupler 110
- Optocoupler on an input line 110
- Optocoupler on an output line 112
- The Relay 113
- Generating a sound 117
- Shift registers 121
- Input shift register 74HC597 121
- Output shift register 124
- LCD Display 133
- Macro for LCD support 139
- Serial Communication 150
- Main program: 154
- Appendix A 156
- A.2 MOVWF Copy W to f 157
- A.3 MOVF Copy f to d 157
- A.4 CLRW Write 0 in W 158
- A.5 Write 0 in f 158
- Appendix A - Instruction Set 159
- A.8 ADDWF Add W to f 160
- A.17 INCF Increment f 164
- A.18 DECF Decrement f 165
- A.21 COMF Complement f 168
- A.23 BSF Set bit b in f 169
- A.33 NOP No operation 174
- Appendix B 177
- B.2 Binary numeric system 178
- Appendix B - Numeric Systems 179
- Conclusion 181
- Appendix C 183
- Appendix C - Glossary 184
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