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PIC12F683 Datasheet(PDF) 15 Page - Microchip Technology |
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PIC12F683 Datasheet(HTML) 15 Page - Microchip Technology |
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15 / 148 page  2004 Microchip Technology Inc. Preliminary DS41211B-page 13 PIC12F683 2.2.2.3 INTCON Register The INTCON register is a readable and writable register, which contains the various enable and flag bits for TMR0 register overflow, GPIO change and external GP2/INT pin interrupts. REGISTER 2-3: INTCON – INTERRUPT CONTROL REGISTER (ADDRESS: 0Bh OR 8Bh) 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 (INTCON<7>). User software should ensure the appropriate interrupt flag bits are clear prior to enabling an interrupt. R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 GIE PEIE T0IE INTE GPIE T0IF INTF GPIF bit 7 bit 0 bit 7 GIE: Global Interrupt Enable bit 1 = Enables all unmasked interrupts 0 = Disables all interrupts bit 6 PEIE: Peripheral Interrupt Enable bit 1 = Enables all unmasked peripheral interrupts 0 = Disables all peripheral interrupts bit 5 T0IE: TMR0 Overflow Interrupt Enable bit 1 = Enables the TMR0 interrupt 0 = Disables the TMR0 interrupt bit 4 INTE: GP2/INT External Interrupt Enable bit 1 = Enables the GP2/INT external interrupt 0 = Disables the GP2/INT external interrupt bit 3 GPIE: GPIO Change Interrupt Enable bit(1) 1 = Enables the GPIO change interrupt 0 = Disables the GPIO change interrupt bit 2 T0IF: TMR0 Overflow Interrupt Flag bit(2) 1 = TMR0 register has overflowed (must be cleared in software) 0 = TMR0 register did not overflow bit 1 INTF: GP2/INT External Interrupt Flag bit 1 = The GP2/INT external interrupt occurred (must be cleared in software) 0 = The GP2/INT external interrupt did not occur bit 0 GPIF: GPIO Change Interrupt Flag bit 1 = When at least one of the GPIO<5:0> pins changed state (must be cleared in software) 0 = None of the GPIO<5:0> pins have changed state Note 1: IOC register must also be enabled. 2: T0IF bit is set when Timer0 rolls over. Timer0 is unchanged on Reset and should be initialized before clearing T0IF bit. 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 |
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