MC68HC705MC4MP datasheet(115/180 Pages) FREESCALE

部件名	MC68HC705MC4MP

功能描述	General Release Specification

PDF	180 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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115 / 180 page

Pulse Width Modulator

PWM during Wait Mode

General Release Specification

Pulse Width Modulator

10.8 PWM during Wait Mode

The PWM continues normal operation during wait mode. To decrease

power consumption during wait, it is recommended that the PWM

subsystem be put into the PRESET state.

10.9 Application Examples

The following examples demonstrate PWM configuration options to

drive brushed DC and permanent magnet brushless motors. The

schematic diagrams are simplified for clarity.

10.9.1 Brushed DC Motor Interface

The basic interface for a single brushed DC motor is shown below.

Figure 10-17. Brushed DC Motor Interface

B+

0 V

PA1

PA3

PA5

PA7

PWMA

— MASK FEATURE DISABLED

— PA1, PA3 DRIVE PWM, OR LOGIC 0

— PA5 AND PA7 OUTPUT PORTS, LOGIC 1 OR 0

PD6

INPUT

CAPTURE

Freescale Semiconductor, Inc.

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MC68HC705MC4MP 数据表(PDF) 115 Page - Freescale Semiconductor, Inc