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PIC16F1847 Datasheet(PDF) 83 Page - Microchip Technology |
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PIC16F1847 Datasheet(HTML) 83 Page - Microchip Technology |
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83 / 408 page  2011 Microchip Technology Inc. Preliminary DS41453B-page 83 PIC16(L)F1847 8.0 INTERRUPTS The interrupt feature allows certain events to preempt normal program flow. Firmware is used to determine the source of the interrupt and act accordingly. Some interrupts can be configured to wake the MCU from Sleep mode. This chapter contains the following information for Interrupts: • Operation • Interrupt Latency • Interrupts During Sleep •INT Pin • Automatic Context Saving Many peripherals produce Interrupts. Refer to the corresponding chapters for details. A block diagram of the interrupt logic is shown in Figure 8-1 and Figure 8-2. FIGURE 8-1: INTERRUPT LOGIC TMR0IF TMR0IE INTF INTE IOCF IOCE GIE PEIE Wake-up (If in Sleep mode) Interrupt to CPU From Peripheral Interrupt Logic (Figure 8-2) |
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