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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16F627A датащи(PDF) 126 Page - Microchip Technology |
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PIC16F627A датащи(HTML) 126 Page - Microchip Technology |
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126 / 180 page  PIC16F627A/628A/648A DS40044D-page 124 © 2005 Microchip Technology Inc. MOVWF Move W to f Syntax: [ label ] MOVWF f Operands: 0 ≤ f ≤ 127 Operation: (W) → (f) Status Affected: None Encoding: 00 0000 1fff ffff Description: Move data from W register to register ‘f’. Words: 1 Cycles: 1 Example MOVWF REG1 Before Instruction REG1 = 0xFF W = 0x4F After Instruction REG1 = 0x4F W = 0x4F NOP No Operation Syntax: [ label ] NOP Operands: None Operation: No operation Status Affected: None Encoding: 00 0000 0xx0 0000 Description: No operation. Words: 1 Cycles: 1 Example NOP OPTION Load Option Register Syntax: [ label ] OPTION Operands: None Operation: (W) → OPTION Status Affected: None Encoding: 00 0000 0110 0010 Description: The contents of the W register are loaded in the OPTION register. This instruction is supported for code compatibility with PIC16C5X products. Since OPTION is a readable/writable register, the user can directly address it. Using only register instruction such as MOVWF. Words: 1 Cycles: 1 Example To maintain upward compatibil- ity with future PICmicro® products, do not use this instruction. RETFIE Return from Interrupt Syntax: [ label ] RETFIE Operands: None Operation: TOS → PC, 1 → GIE Status Affected: None Encoding: 00 0000 0000 1001 Description: Return from Interrupt. Stack is POPed and Top-of-Stack (TOS) is loaded in the PC. Interrupts are enabled by setting Global Interrupt Enable bit, GIE (INTCON<7>). This is a two- cycle instruction. Words: 1 Cycles: 2 Example RETFIE After Interrupt PC = TOS GIE = 1 |
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