PIC18F45J50-I/SOSQTP 查看數據表（PDF） - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

FIGURE 18-7:

PxM<1:0>

EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)

Signal

0

Pulse

Width

Period

PR2 + 1

00 (Single Output)

10

(Half-Bridge)

(Full-Bridge,

01

Forward)

(Full-Bridge,

11

Reverse)

PxA Modulated

PxA Modulated

PxB Modulated

PxA Active

PxB Inactive

PxC Inactive

PxD Modulated

PxA Inactive

PxB Modulated

PxC Active

PxD Inactive

Delay(1)

Delay(1)

Relationships:

• Period = 4 * TOSC * (PR2 + 1) * (TMR2 Prescale Value)

• Pulse Width = TOSC * (CCPRxL<7:0>:CCPxCON<5:4>) * (TMR2 Prescale Value)

• Delay = 4 * TOSC * (ECCPxDEL<6:0>)

Note 1: Dead-band delay is programmed using the ECCP1DEL register (Section 18.5.6 “Programmable Dead-Band

Delay Mode”).

 2011 Microchip Technology Inc.

DS39931D-page 255

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