Section 8. Interrupts - Microchip Technology

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Generally the interrupt flag bit(s) must be cleared in software before re-enabling the global inter-rupt to avoid recursive interrupts. Once in the interrupt service routine the source(s) of the interrupt can be determined by polling the interrupt flag bits. Individual interrupt flag bits are set regardless of the status of their

  Services, Inter, Turp, Interrupts, The interrupt service, The interrupt, Inter rupt