PIC16F684-ESLASHP datasheet(86/164 Pages) MICROCHIP

Part #	PIC16F684-E/P

Description	14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PDF	164 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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86 / 164 page

PIC16F684

DS41202C-page 84

Preliminary

 2004 Microchip Technology Inc.

FIGURE 11-10:

PWM DIRECTION CHANGE

FIGURE 11-11:

PWM DIRECTION CHANGE AT NEAR 100% DUTY CYCLE

Period(1)

SIGNAL

Note 1:

The direction bit in the ECCP Control register (CCP1CON<7>) is written any time during the PWM cycle.

When changing directions, the P1A and P1C signals switch before the end of the current PWM cycle at intervals

of 4 TOSC, 16 TOSC or 64 TOSC, depending on the Timer2 prescaler value. The modulated P1B and P1D signals

are inactive at this time.

Period

(2)

P1A (Active-High)

P1B (Active-High)

P1C (Active-High)

P1D (Active-High)

Forward Period

Reverse Period

P1A

TON

TOFF

T = TOFF - TON

P1B

P1C

P1D

External Switch D

Potential

Shoot-Through

Current

Note 1:All signals are shown as active-high.

2: TON is the turn on delay of power switch QC and its driver.

3: TOFF is the turn off delay of power switch QD and its driver.

External Switch C

PIC16F684-E/P Datasheet(PDF) 86 Page - Microchip Technology