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SE33 Datasheet(PDF) 87 Page - Microchip Technology |
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SE33 Datasheet(HTML) 87 Page - Microchip Technology |
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87 / 478 page  2010-2012 Microchip Technology Inc. DS41414D-page 87 PIC16(L)F1946/47 7.0 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 7-1. FIGURE 7-1: INTERRUPT LOGIC TMR0IF TMR0IE INTF INTE IOCIF IOCIE Interrupt to CPU Wake-up (If in Sleep mode) GIE (TMR1IF) PIR1<0> PIRn<7> PIEn<7> PEIE Peripheral Interrupts (TMR1IF) PIR1<0> |
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