PIC16F616 Microchip Technology Inc., PIC16F616 Datasheet - Page 103

• Manufacturer Part Number: PIC16F616
• Description: 14-pin Flash-based, 8-bit Cmos Microcontrollers
• Manufacturer: Microchip Technology Inc.

FIGURE 10-14:
10.4.5
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 PRSEN bit in the PWM1CON register.
If auto-restart is enabled, the ECCPASE bit will remain
set as long as the auto-shutdown condition is active.
When the auto-shutdown condition is removed, the
ECCPASE bit will be cleared via hardware and normal
operation will resume.
FIGURE 10-15:
© 2007 Microchip Technology Inc.
Note 1: The auto-shutdown condition is a level-
Shutdown
Shutdown
2: Writing to the ECCPASE bit is disabled
3: Once the auto-shutdown condition has
ECCPASE bit
PWM
ECCPASE bit
PWM
AUTO-RESTART MODE
based signal, not an edge-based signal.
As long as the level is present, the auto-
shutdown will persist.
while
persists.
been removed and the PWM restarted
(either through firmware or auto-restart),
the PWM signal will always restart at the
beginning of the next PWM period.
Activity
Activity
Event
Event
an
PWM Period
PWM Period
PWM AUTO-SHUTDOWN WITH FIRMWARE RESTART (PRSEN = 0)
PWM AUTO-SHUTDOWN WITH AUTO-RESTART ENABLED (PRSEN = 1)
Start of
Start of
auto-shutdown
Normal PWM
Normal PWM
PIC16F610/616/16HV610/616
condition
Preliminary
Event Occurs
Event Occurs
PWM Period
PWM Period
Shutdown
Shutdown
Event Clears
Event Clears
Shutdown
Shutdown
Cleared by
ECCPASE
Firmware
Resumes
Resumes
PWM
PWM
DS41288C-page 101