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PIC16F913 bảng dữ liệu(PDF) 204 Page - Microchip Technology |
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PIC16F913 bảng dữ liệu(HTML) 204 Page - Microchip Technology |
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204 / 272 page ![]() PIC16F917/916/914/913 DS41250E-page 202 Preliminary © 2005 Microchip Technology Inc. Even if the flag bits were checked before executing a SLEEP instruction, it may be possible for flag bits to become set before the SLEEP instruction completes. To determine whether a SLEEP instruction executed, test the PD bit. If the PD bit is set, the SLEEP instruction was executed as a NOP. To ensure that the WDT is cleared, a CLRWDT instruction should be executed before a SLEEP instruction. FIGURE 16-10: WAKE-UP FROM SLEEP THROUGH INTERRUPT Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 OSC1(1) CLKO(4) INT pin INTF flag (INTCON<1>) GIE bit (INTCON<7>) Instruction Flow PC Instruction Fetched Instruction Executed PC PC + 1 PC + 2 Inst(PC) = Sleep Inst(PC - 1) Inst(PC + 1) Sleep Processor in Sleep Interrupt Latency(3) Inst(PC + 2) Inst(PC + 1) Inst(0004h) Inst(0005h) Inst(0004h) Dummy Cycle PC + 2 0004h 0005h Dummy Cycle TOST(2) PC + 2 Note 1: XT, HS or LP Oscillator mode assumed. 2: TOST = 1024 TOSC (drawing not to scale). This delay does not apply to EC and RC Oscillator modes. 3: GIE = 1 assumed. In this case after wake-up, the processor jumps to 0004h. If GIE = 0, execution will continue in-line. 4: CLKO is not available in XT, HS, LP or EC Oscillator modes, but shown here for timing reference. |
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