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AN2933

更新时间： 2022-01-19 07:59:00

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Understanding the eTPU Channel Hardware

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AN2933 数据手册

AN2933

Rev. 0, 12/2004

Freescale Semiconductor

Application Note

Understanding the eTPU Channel

Hardware

by: Mike Pauwels

TECD Systems Engineer

Table of Contents

This is one of a series of application notes intended to

help the microcontroller systems engineer to design and

implement code for the Enhanced Time Processor Unit

(eTPU).

Overview .............................................................1

Architecture of the eTPU Channel.......................2

Channel Modes .................................................14

Using the Channel Hardware ............................28

Channel Service Request..................................35

Summary...........................................................38

This note describes the architecture of the eTPU channel

hardware, and demonstrates how the action units can be

configured to meet system requirements and accurately

controlled for flawless operation.

Most of the examples shown below are taken from

software that has been designed and tested on the eTPU

hardware and represent the state of the art.

1 Overview

The eTPU is an autonomous slave processor offered on

various families of Freescale microcontrollers. It is a

significant enhancement of the successful Time

Processor Unit (TPU) that has found applications in

automotive, electromechanical, communications, and

other systems for many years. The extent of the eTPU

enhancements have precluded code compatibility with

the TPU, but the architecture was designed with a similar

This document contains information on a new product. Specifications and information herein

are subject to change without notice.

12 3 4 5 6 7...40

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