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PIC18F242 Datasheet(PDF) 208 Page - Microchip Technology |
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PIC18F242 Datasheet(HTML) 208 Page - Microchip Technology |
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208 / 332 page  PIC18FXX2 DS39564C-page 206 © 2006 Microchip Technology Inc. FIGURE 19-2: WAKE-UP FROM SLEEP THROUGH INTERRUPT(1,2) 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 CLKO(4) INT pin INTF flag (INTCON<1>) GIEH bit (INTCON<7>) INSTRUCTION FLOW PC Instruction Fetched Instruction Executed PC PC+2 PC+4 Inst(PC) = SLEEP Inst(PC - 1) Inst(PC + 2) SLEEP Processor in SLEEP Interrupt Latency(3) Inst(PC + 4) Inst(PC + 2) Inst(0008h) Inst(000Ah) Inst(0008h) Dummy Cycle PC + 4 0008h 000Ah Dummy Cycle TOST(2) PC+4 Note 1: XT, HS or LP Oscillator mode assumed. 2: GIE = '1' assumed. In this case, after wake-up, the processor jumps to the interrupt routine. If GIE = '0', execution will continue in-line. 3: TOST = 1024 TOSC (drawing not to scale). This delay will not occur for RC and EC Osc modes. 4: CLKO is not available in these Osc modes, but shown here for timing reference. |
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