Pulse-Width Modulator Interface; Overview; Signals - Intel PXA27 Series Design Manual

Pulse-Width Modulator Interface

23.1

Overview

The pulse-width modulator (PWM) interface of Intel
processor) contains four signals that are configured to generate periodic output signals. The
configuration of the PWMs is accomplished through software and is described in detail in the
®
Intel PXA27x Processor Developers Manual.
The PWM signals are implemented through GPIOs. Therefore, the hardware considerations
necessary for the PWM signals are the same as that of the GPIOs. Refer to
Purpose Input/Output Interfaces"
implementation of the pulse-width modulator signals.
23.2

Signals

The PWM signals are implemented through the GPIOs of the PXA27x processor. Refer to GPIO
alternate function table in the GPIO chapter of the Intel
for the GPIO assignments of the PWM signals.
See Table 23-1
Table 23-1. PWM Interface Signal List
Signal Name
PWM_OUT0
PWM_OUT1
PWM_OUT2
PWM_OUT3
®
Intel PXA27x Processor Family Design Guide
of this document for information regarding the proper hardware
for the list of signals controlled by the PWM controller of the PXA27x processor.
Type
Output Pulse-width modulated output signal for PWM0
Output Pulse-width modulated output signal for PWM1
Output Pulse-width modulated output signal for PWM2
Output Pulse-width modulated output signal for PWM3
®
PXA27x Processor Family (PXA27x
Chapter 24, "General
®
PXA27x Processor Developers Manual
Description
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