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PIC16F72/ML 数据表(PDF) 81 Page - Microchip Technology |
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PIC16F72/ML 数据表(HTML) 81 Page - Microchip Technology |
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81 / 136 page  2002 Microchip Technology Inc. DS39597B-page 79 PIC16F72 RETFIE Return from Interrupt Syntax: [ label ] RETFIE Operands: None Operation: TOS → PC, 1 → GIE Status Affected: None RETLW Return with Literal in W Syntax: [ label ] RETLW k Operands: 0 ≤ k ≤ 255 Operation: k → (W); TOS → PC Status Affected: None Description: The W register is loaded with the eight-bit literal ‘k’. The program counter is loaded from the top of the stack (the return address). This is a two-cycle instruction. RETURN Return from Subroutine Syntax: [ label ] RETURN Operands: None Operation: TOS → PC Status Affected: None Description: Return from subroutine. The stack is POPed and the top of the stack (TOS) is loaded into the program counter. This is a two-cycle instruction. RLF Rotate Left f through Carry Syntax: [ label ] RLF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: See description below Status Affected: C Description: The contents of register ‘f’ are rotated one bit to the left through the Carry Flag. If ‘d’ = ‘0’, the result is placed in the W register. If ‘d’ = ‘1’, the result is stored back in register ‘f’. RRF Rotate Right f through Carry Syntax: [ label ] RRF f,d Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: See description below Status Affected: C Description: The contents of register ‘f’ are rotated one bit to the right through the Carry Flag. If ‘d’ = ‘0’, the result is placed in the W register. If ‘d’ = ‘1’, the result is placed back in register ‘f’. SLEEP Syntax: [ label ]SLEEP Operands: None Operation: 00h → WDT, 0 → WDT prescaler, 1 → TO, 0 → PD Status Affected: TO, PD Description: The power-down status bit, PD is cleared. Time-out status bit, TO is set. Watchdog Timer and its prescaler are cleared. The processor is put into SLEEP mode with the oscillator stopped. Register f C Register f C |
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