PIC16F616T-I/SL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F616T-I/SL

14-Pin, Flash-Based 8-Bit CMOS Microcontrollers

Microchip Technology 

PIC16F610/616/16HV610/616

Note 1: The auto-shutdown condition is a level-

based signal, not an edge-based signal.

As long as the level is present, the auto-

shutdown will persist.

2: Writing to the ECCPASE bit is disabled

while an auto-shutdown condition

persists.

3: Once the auto-shutdown condition has

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.

FIGURE 10-14: PWM AUTO-SHUTDOWN WITH FIRMWARE RESTART (PRSEN = 0)

Shutdown Event

PWM Period

ECCPASE bit

PWM Activity

Start of

PWM Period

Normal PWM

Shutdown

Event Occurs

ECCPASE

Cleared by

Shutdown Firmware PWM

Event Clears

Resumes

10.4.5 AUTO-RESTART MODE

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: PWM AUTO-SHUTDOWN WITH AUTO-RESTART ENABLED (PRSEN = 1)

Shutdown Event

PWM Period

ECCPASE bit

PWM Activity

Start of

PWM Period

Normal PWM

Shutdown Shutdown

Event Occurs Event Clears

PWM

Resumes

© 2009 Microchip Technology Inc.

DS41288F-page 103

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