PIC16F639 Microchip Technology Inc., PIC16F639 Datasheet - Page 142

• Manufacturer Part Number: PIC16F639
• Description: 8/14-pin Flash-based, 8-bit Cmos Microcontrollers With Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

PIC12F635/PIC16F636/639
12.9.2
An overflow (FFh
the T0IF bit of the INTCON register. The interrupt can be
enabled/disabled by setting/clearing T0IE bit of the
INTCON register. See Section 5.0 “Timer0 Module”
for operation of the Timer0 module.
FIGURE 12-7:
DS41232D-page 140
TIMER INTERRUPT
Note 1: PIC16F636/639 only.
IOC-RA0
IOC-RA1
IOC-RA2
IOC-RA3
IOC-RA4
IOC-RA5
TMR1IE
TMR1IF
C2IF
C2IE
IOCA0
IOCA1
IOCA2
IOCA3
IOCA4
IOCA5
OSFIF
OSFIE
LVDIF
LVDIE
CRIF
CRIE
EEIF
EEIE
C1IF
C1IE
00h) in the TMR0 register will set
(1)
(1)
INTERRUPT LOGIC
RAIE
INTF
INTE
RAIF
PEIE
T0IF
T0IE
GIE
12.9.3
An input change on PORTA change sets the RAIF bit of
the
enabled/disabled by setting/clearing the RAIE bit of the
INTCON register. Plus, individual pins can be configured
through the IOCA register.
Note:
INTCON
PORTA INTERRUPT
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.
register.
Wake-up (If in Sleep mode)
© 2007 Microchip Technology Inc.
The
Interrupt to CPU
interrupt
can
be