PIC16C765SLASHP datasheet(51/158 Pages) MICROCHIP

51 / 158 page

Advanced Information

DS41124A-page 51

PIC16C745/765

9.0

CAPTURE/COMPARE/PWM

MODULES

Each Capture/Compare/PWM (CCP) module contains

a 16-bit register which can operate as a:

• 16-bit capture register

• 16-bit compare register

• PWM master/slave Duty Cycle register

Both the CCP1 and CCP2 modules are identical in

operation, with the exception being the operation of the

special event trigger. Table 9-1 and Table 9-2 show the

resources and interactions of the CCP module(s). In

the following sections, the operation of a CCP module

is described with respect to CCP1. CCP2 operates the

same as CCP1, except where noted.

CCP1 Module:

Capture/Compare/PWM Register1 (CCPR1) is com-

prised of two 8-bit registers: CCPR1L (low byte) and

CCPR1H (high byte). The CCP1CON register controls

the operation of CCP1. The special event trigger is gen-

erated by a compare match and will reset Timer1.

CCP2 Module:

Capture/Compare/PWM Register1 (CCPR2) is com-

prised of two 8-bit registers: CCPR2L (low byte) and

CCPR2H (high byte). The CCP2CON register controls

the operation of CCP2. The special event trigger is gen-

erated by a compare match and will reset Timer1 and

start an A/D conversion (if the A/D module is enabled).

Additional information on CCP modules is available in

the PICmicro™ Mid-Range MCU Family Reference

Manual (DS33023) and in “Using the CCP Modules”

(AN594).

TABLE 9-1:

CCP MODE - TIMER

RESOURCES REQUIRED

TABLE 9-2:

INTERACTION OF TWO CCP MODULES

CCP Mode

Timer Resource

Capture

Compare

PWM

Timer1

Timer2

CCPx Mode CCPy Mode

Interaction

Capture

Same TMR1 time-base.

Capture

Compare

The compare should be configured for the special event trigger, which clears TMR1.

Compare

The compare(s) should be configured for the special event trigger, which clears TMR1.

PWM

The PWMs will have the same frequency and update rate (TMR2 interrupt).

PWM

Capture

None.

PWM

Compare

None.

PIC16C765/P Datasheet(PDF) 51 Page - Microchip Technology

PIC16C765/P Datasheet(HTML) 51 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL