PIC16F883-ESSQTP datasheet(127/338 Pages) MICROCHIP

127 / 338 page

 2006-2012 Microchip Technology Inc.

DS41291G-page 127

PIC16F882/883/884/886/887

11.0 CAPTURE/COMPARE/PWM

MODULES (CCP1 AND CCP2)

This device contains one Enhanced Capture/Compare/

PWM (CCP1) and Capture/Compare/PWM module

(CCP2). The CCP1 and CCP2 modules are identical in

operation, with the exception of the Enhanced PWM

features available on CCP1 only. See Section 11.6

“PWM (Enhanced Mode)” for more information.

11.1

Enhanced Capture/Compare/PWM

(CCP1)

The Enhanced Capture/Compare/PWM module is a

peripheral which allows the user to time and control

different events. In Capture mode, the peripheral

allows the timing of the duration of an event. The

Compare mode allows the user to trigger an external

event when a predetermined amount of time has

expired. The PWM mode can generate a Pulse-Width

Modulated signal of varying frequency and duty cycle.

Table 11-1 shows the timer resources required by the

ECCP module.

TABLE 11-1:

ECCP MODE – TIMER

RESOURCES REQUIRED

Note:

CCPRx and CCPx throughout this

document refer to CCPR1 or CCPR2 and

CCP1 or CCP2, respectively.

ECCP Mode

Timer Resource

Capture

Timer1

Compare

Timer1

PWM

Timer2

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