PIC12F1822 MICROCHIP [Microchip Technology], PIC12F1822 Datasheet - Page 216

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

PIC12F/LF1822/16F/LF1823
FIGURE 23-14:
23.4.4
The Enhanced PWM can be configured to automati-
cally restart the PWM signal once the auto-shutdown
condition has been removed. Auto-restart is enabled by
setting the P1RSEN bit in the PWM1CON register.
FIGURE 23-15:
DS41413A-page 216
Shutdown
Shutdown
PWM
CCP1ASE bit
PWM
CCP1ASE bit
AUTO-RESTART MODE
Activity
Activity
Event
Event
PWM AUTO-SHUTDOWN WITH FIRMWARE RESTART (P1RSEN = 0)
PWM AUTO-SHUTDOWN WITH AUTO-RESTART (P1RSEN = 1)
Overflow
Overflow
Timer
Timer
Start of
PWM Period
Start of
PWM Period
PWM Period
PWM Period
(Auto-Shutdown)
(Auto-Shutdown)
Event Occurs
Event Occurs
Missing Pulse
Missing Pulse
Overflow
Overflow
Shutdown
Shutdown
Timer
Timer
Preliminary
Event Clears
Shutdown
Event Clears
Overflow
Shutdown
Overflow
If auto-restart is enabled, the CCP1ASE bit will remain
set as long as the auto-shutdown condition is active.
When the auto-shutdown condition is removed, the
CCP1ASE bit will be cleared via hardware and normal
operation will resume.
Timer
Timer
Missing Pulse
(CCP1ASE not clear)
Missing Pulse
(CCP1ASE not clear)
Overflow
Overflow
Cleared by
CCP1ASE
Cleared by
CCP1ASE
Hardware
Firmware
Timer
Timer
PWM
Resumes
PWM
Resumes
 2010 Microchip Technology Inc.
Overflow
Overflow
Timer
Timer