PIC16F628-20SLASHSS datasheet(21/160 Pages) MICROCHIP

21 / 160 page

Preliminary

DS40300B-page 21

PIC16F62X

4.2.2.3

INTCON REGISTER

The INTCON register is a readable and writable

for all interrupt sources except the comparator module.

See

Section 4.2.2.4

and

Section 4.2.2.5

for

description of the comparator enable and flag bits.

Note:

Interrupt flag bits get set when an interrupt

condition occurs regardless of the state of

its corresponding enable bit or the global

enable bit, GIE (INTCON<7>).

INTCON REGISTER (ADDRESS 0BH OR 8BH)

R/W-0

R/W-x

GIE

PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF

R = Readable bit

W = Writable bit

U = Unimplemented bit, read

as ’0’

-n = Value at POR reset

-x = Unknown at POR reset

bit7

bit0

bit 7:

GIE: Global Interrupt Enable bit

= Enables all un-masked interrupts

= Disables all interrupts

bit 6:

PEIE: Peripheral Interrupt Enable bit

= Enables all un-masked peripheral interrupts

= Disables all peripheral interrupts

bit 5:

T0IE: TMR0 Overflow Interrupt Enable bit

= Enables the TMR0 interrupt

= Disables the TMR0 interrupt

bit 4:

INTE: RB0/INT External Interrupt Enable bit

= Enables the RB0/INT external interrupt

= Disables the RB0/INT external interrupt

bit 3:

RBIE: RB Port Change Interrupt Enable bit

= Enables the RB port change interrupt

= Disables the RB port change interrupt

bit 2:

T0IF: TMR0 Overflow Interrupt Flag bit

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

= TMR0 register did not overflow

bit 1:

INTF: RB0/INT External Interrupt Flag bit

= The RB0/INT external interrupt occurred (must be cleared in software)

= The RB0/INT external interrupt did not occur

bit 0:

RBIF: RB Port Change Interrupt Flag bit

= When at least one of the RB7:RB4 pins changed state (must be cleared in software)

= None of the RB7:RB4 pins have changed state

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