DSPIC33EP128GS708 datasheet(183/484 Pages) MICROCHIP

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 2016-2018 Microchip Technology Inc.

DS70005258C-page 183

dsPIC33EPXXXGS70X/80X FAMILY

15.0 OUTPUT COMPARE

The output compare module can select one of six

available clock sources for its time base. The module

compares the value of the timer with the value of one or

two Compare registers, depending on the operating

mode selected. The state of the output pin changes

when the timer value matches the Compare register

value. The output compare module generates either a

single output pulse, or a sequence of output pulses, by

changing the state of the output pin on the compare

match events. The output compare module can also

generate interrupts on compare match events.

15.1

Output Compare Resources

Many useful resources are provided on the main prod-

uct page of the Microchip website for the devices listed

in this data sheet. This product page contains the latest

updates and additional information.

15.1.1

KEY RESOURCES

• “Output Compare with Dedicated Timer”

(DS70005159) in the “dsPIC33/PIC24 Family

Reference Manual”

• Code Samples

• Application Notes

• Software Libraries

• Webinars

• All Related “dsPIC33/PIC24 Family Reference

Manual” Sections

• Development Tools

FIGURE 15-1:

OUTPUT COMPARE x MODULE BLOCK DIAGRAM

Note 1: This data sheet summarizes the features

of the dsPIC33EPXXXGS70X/80X family

of devices. It is not intended to be a

comprehensive reference source. To

complement the information in this data

sheet, refer to “Output Compare with

Dedicated Timer” (DS70005159) in

the “dsPIC33/PIC24 Family Reference

Manual”, which is available from the

Microchip website (www.microchip.com).

2: Some registers and associated bits

described in this section may not be

available on all devices. Refer to

Section 4.0 “Memory Organization” in

this data sheet for device-specific register

and bit information.

OCxR Buffer

OCxCON1

OCxCON2

OCx Interrupt

OCx Pin

OCxRS Buffer

Comparator

Match

Trigger and

Sync Logic

Clock

Select

Increment

Reset

OCx Clock

Sources

Trigger and

Sync Sources

Reset

Match Event

OCFA

OCxR

OCxRS

Event

Rollover

Rollover/Reset

OCx Synchronization/Trigger Event

SYNCSEL<4:0>

Trigger(1)

Note 1:

The trigger/sync source is enabled by default and is set to Timer2 as a source. This timer must be enabled for

proper OCx module operation or the trigger/sync source must be changed to another source option.

OCx Output and

Fault Logic

Comparator

OCxTMR

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