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PIC16F753 데이터시트(PDF) 20 Page - Microchip Technology |
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PIC16F753 데이터시트(HTML) 20 Page - Microchip Technology |
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20 / 230 page ![]() PIC16F753/HV753 DS40001709C-page 20 2013-2015 Microchip Technology Inc. 2.3.6 PIR1 REGISTER The PIR1 register contains the Peripheral Interrupt flag bits, as shown in Register 2-6. Note: Interrupt flag bits are set when an interrupt condition occurs, regardless of the state of its corresponding enable bit or the Global Enable bit, GIE of the INTCON register. User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt. REGISTER 2-6: PIR1: PERIPHERAL INTERRUPT REQUEST REGISTER 1 R/W-0 R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 TMR1GIF ADIF — — HLTMR2IF HLTMR1IF TMR2IF TMR1IF bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 7 TMR1GIF: TMR1 Gate Interrupt Flag bit 1 = Timer1 gate interrupt is pending 0 = Timer1 gate interrupt is not pending bit 6 ADIF: ADC Interrupt Flag bit 1 = ADC conversion complete 0 = ADC conversion has not completed or has not been started bit 5-4 Unimplemented: Read as ‘0’ bit 3 HLTMR2IF: HLT2 to HLTPR2 Match Interrupt Flag bit 1 = HLT2 to HLTPR2 match occurred (must be cleared in software) 0 = HLT2 to HLTPR2 match did not occur bit 2 HLTMR1IF: HLT1 to HLTPR1 Match Interrupt Flag bit 1 = HLT1 to HLTPR1 match occurred (must be cleared in software) 0 = HLT1 to HLTPR1 match did not occur bit 1 TMR2IF: Timer2 to PR2 Match Interrupt Flag bit 1 = Timer2 to PR2 match occurred (must be cleared in software) 0 = Timer2 to PR2 match did not occur bit 0 TMR1IF: Timer1 Interrupt Flag bit 1 = Timer1 rolled over (must be cleared in software) 0 = Timer1 has not rolled over |
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