PIC16F1933-ESLASHP datasheet(75/418 Pages) MICROCHIP

75 / 418 page

Preliminary

DS41364A-page 73

PIC16F193X/LF193X

4.5.1

INTCON REGISTER

The INTCON register is a readable and writable

for TMR0 register overflow, interrupt-on-change and

external INT pin interrupts.

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 appropri-

ate interrupt flag bits are clear prior to

enabling an interrupt.

INTCON: INTERRUPT CONTROL REGISTER

R/W-0/0

R-0/0

GIE

PEIE

TMR0IE

INTE

IOCIE

TMR0IF(1)

INTF

IOCIF

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

bit 7

GIE: Global Interrupt Enable bit

= Enables all unmasked interrupts

= Disables all interrupts

bit 6

PEIE: Peripheral Interrupt Enable bit

= Enables all unmasked peripheral interrupts

= Disables all peripheral interrupts

bit 5

TMR0IE: Timer0 Overflow Interrupt Enable bit

= Enables the Timer0 interrupt

= Disables the Timer0 interrupt

bit 4

INTE: RB0/INT External Interrupt Enable bit

= Enables the RB0/INT external interrupt

= Disables the RB0/INT external interrupt

bit 3

IOCIE: Interrupt-on-Change Enable bit(1)

= Enables the interrupt-on-change

= Disables the interrupt-on-change

bit 2

TMR0IF: Timer0 Overflow Interrupt Flag bit(2)

= TMR0 register has overflowed (must be cleared in software)

= TMR0 register did not overflow

bit 1

INTF: INT External Interrupt Flag bit

= The INT external interrupt occurred (must be cleared in software)

= The INT external interrupt did not occur

bit 0

IOCIF: Interrupt-on-Change Interrupt Flag bit

= When at least one of the interrupt-on-change pins changed state (must be cleared in software)

= None of the interrupt-on-change pins have changed state

Note 1:

TMR0IF bit is set when Timer0 rolls over. Timer0 is unchanged on Reset and should be initialized before

clearing TMR0IF bit.

PIC16F1933-E/P Datasheet(PDF) 75 Page - Microchip Technology

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