Microchip Technology DM183037 Data Sheet

 2012 Microchip Technology Inc.

DS30575A-page 325

PIC18F97J94 FAMILY

FIGURE 18-5:

EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)

Period

Signal

PR2 + 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

(1)

Delay

(1)

Relationships:

• Period = 4 * T

OSC

* (PR2 + 1) * (TMR2 Prescale Value)

• Pulse Width = T

OSC

* (CCPRxL<7:0>:CCPxCON<5:4>) * (TMR2 Prescale Value)

• Delay = 4 * T

OSC

* (ECCPxDEL<6:0>)

Note 1:

Dead-band delay is programmed using the ECCPxDEL register (