PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 83

• Manufacturer Part Number: PIC12F1822
• Description: 8/14-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

8.0
The interrupt feature allows certain events to preempt
normal program flow. Firmware is used to determine
the source of the interrupt and act accordingly. Some
interrupts can be configured to wake the MCU from
Sleep mode.
This chapter contains the following information for
Interrupts:
• Operation
• Interrupt Latency
• Interrupts During Sleep
• INT Pin
• Automatic Context Saving
Many peripherals produce Interrupts. Refer to the
corresponding chapters for details.
A block diagram of the interrupt logic is shown in
Figure 8-1 and Figure 8-2.
FIGURE 8-1:
 2010 Microchip Technology Inc.
INTERRUPTS
From Peripheral Interrupt
Logic (Figure 8-2)
INTERRUPT LOGIC
TMR0IF
TMR0IE
IOCIE
IOCIF
INTF
INTE
PEIE
GIE
PIC12F/LF1822/16F/LF1823
Preliminary
Wake-up (If in Sleep mode)
Interrupt to CPU
DS41413A-page 83