Read this first, About this manual, Notational conventions – Texas Instruments TMS320C645X User Manual

Page 3: Related documentation from texas instruments, Preface

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3

General-Purpose Input/Output (GPIO)

SPRU724

Preface

Read This First

About This Manual

This document describes the general-purpose input/output (GPIO) peripheral
in the digital signal processors (DSPs) of the TMS320C645x

™

DSP family.

Notational Conventions

This document uses the following conventions.

-

Hexadecimal numbers are shown with the suffix h. For example, the
following number is 40 hexadecimal (decimal 64): 40h.

-

When referencing specific register bits, the X in the register bit name is
replaced with the bit number; for example, GPXDIR refers to the bit field
of the GPIO direction register and GP15DIR refers to bit 15 of GPDIR.

-

Registers in this document are shown in figures and described in tables.

J

Each register figure shows a rectangle divided into fields that represent
the fields of the register. Each field is labeled with its bit name, its
beginning and ending bit numbers above, and its read/write properties
below. A legend explains the notation used for the properties.

J

Reserved bits in a register figure designate a bit that is used for future
device expansion.

Related Documentation From Texas Instruments

The following documents describe the C6000

™

devices and related support

tools. Copies of these documents are available on the Internet at www.ti.com.
Tip: Enter the literature number in the search box provided at www.ti.com.

TMS320C6000 CPU and Instruction Set Reference Guide (literature

number SPRU189) gives an introduction to the TMS320C62x

t

and

TMS320C67x

t

DSPs, development tools, and third-party support.

TMS320C6455 Technical Reference (literature number SPRU965) gives an

introduction to the TMS320C6455

t

DSP and discusses the application

areas that are enhanced.

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