PIC16F684-ESLASHST datasheet(104/164 Pages) MICROCHIP

Part #	PIC16F684-E/ST

Description	14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PDF	164 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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104 / 164 page

PIC16F684

DS41202C-page 102

Preliminary

 2004 Microchip Technology Inc.

12.4.2

TMR0 INTERRUPT

An overflow (FFh

→ 00h) in the TMR0 register will set

the T0IF (INTCON<2>) bit. The interrupt can be

enabled/disabled

setting/clearing

T0IE

(INTCON<5>) bit. See Section 5.0 “Timer0 Module”

for operation of the Timer0 module.

12.4.3

PORTA INTERRUPT

An input change on PORTA change sets the RAIF

(INTCON<0>) bit. The interrupt can be enabled/

disabled by setting/clearing the RAIE (INTCON<3>)

bit. Plus, individual pins can be configured through the

IOCA register.

FIGURE 12-7:

INTERRUPT LOGIC

Note:

If a change on the I/O pin should occur

when the read operation is being executed

(start of the Q2 cycle), then the RAIF

interrupt flag may not get set.

TMR1IF

TMR1IE

C1IF

C1IE

T0IF

T0IE

INTF

INTE

RAIF

RAIE

GIE

PEIE

Wake-up (If in Sleep mode)

Interrupt to CPU

EEIE

EEIF

ADIF

ADIE

IOC-RA0

IOCA0

IOC-RA1

IOCA1

IOC-RA2

IOCA2

IOC-RA3

IOCA3

IOC-RA4

IOCA4

IOC-RA5

IOCA5

TMR2IF

TMR2IE

CCP1IF

CCP1IE

OSFIF

OSFIE

C2IF

C2IE

PIC16F684-E/ST Datasheet(PDF) 104 Page - Microchip Technology

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