Microchip Technology AC244055 Data Sheet

PIC16(L)F1938/9

DS40001574C-page 216

 2011-2013 Microchip Technology Inc.

FIGURE 23-7:

EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)

Period

Signal

PRx+1

PxM<1:0>

PxA Modulated

PxB Modulated

PxA Active

PxB Inactive

PxC Inactive

PxD Modulated

PxA Inactive

PxB Modulated

PxC Active

PxD Inactive

Pulse
Width

(Single Output)

(Half-Bridge)

(Full-Bridge,

Forward)

(Full-Bridge,

Reverse)

Delay

Relationships:

• Period = 4 * T

OSC

* (PRx + 1) * (TMRx Prescale Value)

• Pulse Width = T

OSC

* (CCPRxL<7:0>:CCPxCON<5:4>) * (TMRx Prescale Value)

• Delay = 4 * T

OSC

* (PWMxCON<6:0>)