PIC18F4580-ESLASHML datasheet(183/490 Pages) MICROCHIP

Part #	PIC18F4580-E/ML

Description	28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PDF	490 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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183 / 490 page

DS39637D-page 183

PIC18F2480/2580/4480/4580

17.4.5

FULL-BRIDGE MODE

In Full-Bridge Output mode, four pins are used as

outputs; however, only two outputs are active at a time.

In the Forward mode, pin P1A is continuously active

and pin P1D is modulated. In the Reverse mode, pin

P1C is continuously active and pin P1B is modulated.

These are illustrated in Figure 17-6.

P1A, P1B, P1C and P1D outputs are multiplexed with

the

PORTD<4>,

PORTD<5>,

PORTD<6>

and

PORTD<7> data latches. The TRISD<4>, TRISD<5>,

TRISD<6> and TRISD<7> bits must be cleared to

make the P1A, P1B, P1C and P1D pins outputs.

FIGURE 17-6:

FULL-BRIDGE PWM OUTPUT

Period

Duty Cycle

P1A(2)

P1B(2)

P1C(2)

P1D(2)

Forward Mode

(1)

Period

Duty Cycle

P1A(2)

P1C(2)

P1D(2)

P1B(2)

Reverse Mode

(1)

Note 1: At this time, the TMR2 register is equal to the PR2 register.

Note 2: Output signal is shown as active-high.

PIC18F4580-E/ML Datasheet(PDF) 183 Page - Microchip Technology