DSPIC30F2011AT-30ESLASHPF datasheet(89/228 Pages) MICROCHIP

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DS70117F-page 87

dsPIC30F6011/6012/6013/6014

13.0

OUTPUT COMPARE MODULE

This section describes the output compare module and

associated operational modes. The features provided

by this module are useful in applications requiring

operational modes, such as:

• Generation of Variable Width Output Pulses

• Power Factor Correction

Figure 13-1 depicts a block diagram of the output

compare module.

The key operational features of the output compare

module include:

• Timer2 and Timer3 Selection mode

• Simple Output Compare Match mode

• Dual Output Compare Match mode

• Simple PWM mode

• Output Compare During Sleep and Idle modes

• Interrupt on Output Compare/PWM Event

These operating modes are determined by setting the

appropriate bits in the 16-bit OCxCON SFR (where

x = 1,2,3,...,N). The dsPIC DSC devices contain up to

8 compare channels (i.e., the maximum value of N is 8).

OCxRS and OCxR in Figure 13-1 represent the Dual

Compare registers. In the Dual Compare mode, the

OCxR register is used for the first compare and OCxRS

is used for the second compare.

FIGURE 13-1:

OUTPUT COMPARE MODE BLOCK DIAGRAM

Note: This data sheet summarizes features of this group

of dsPIC30F devices and is not intended to be a complete

reference source. For more information on the CPU,

peripherals, register descriptions and general device

functionality, refer to the “dsPIC30F Family Reference

Manual” (DS70046).

OCxR

Comparator

Output

Logic

OCM<2:0>

Output

OCx

Set Flag bit

OCxIF

OCxRS

Mode Select

Note:

Where ‘x’ is shown, reference is made to the registers associated with the respective output compare

channels 1 through N.

OCFA

OCTSEL

T2P2_MATCH

TMR2<15:0

TMR3<15:0>

T3P3_MATCH

From General Purpose

(for x = 1, 2, 3 or 4)

or OCFB

(for x = 5, 6, 7 or 8)

Timer Module

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