Preface; Supplemental Documentation; Terms And Conventions; Multiplexed Pins - Sharp Blue Treak LH75400 User Manual

Preface

This User's Guide describes the SHARP BlueStreak LH75400/01/10/11 16/32-bit ARM-
based System-on-Chip (SoC) devices. These four devices are:
• LH75400
• LH75401
• LH75410
• LH75411.
This User's Guide is the principal technical reference for these SoCs. It is intended for
engineers responsible for designing, integrating, programming, and testing embedded
systems based on these four SHARP SoCs. Electrical Characteristics are found in the
Data Sheet.
This User's Guide assumes that the reader:
• Is familiar with the basic principles and techniques of embedded-microprocessor
system engineering
• Has familiarity with programming the ARM7TDMI-S Processor
• Has access to documentation, support, and training available from ARM.
NOTE: This User's Guide does not cover the ARM instruction set. For information about ARM instruction set,

Supplemental Documentation

An abridged version of this User's Guide (and containing the Electrical Characteristics), is
available as a Data Sheet. An even more abbreviated version is available as a single-page
Product Brief. Please contact your local SHARP representative for details, or visit the
SHARP Microelectronics of the Americas Web site at www.sharpsma.com.

Terms and Conventions

This User's Guide describes four devices that differ only in feature sets. In referring to
these devices collectively, the term 'LH75400/01/10/11' becomes clumsy and difficult to
read, so this Guide uses the terms 'SoC' and 'device' to describe this set of System-on-
Chip devices.
For information about specific terms and acronyms, see the Glossary in this User's Guide.

Multiplexed Pins

These devices are manufactured in a 144-pin Low Profile Quad Flat Pack (LQFP) pack-
age. Some pins have only one function, but others are multiplexed and may carry as many
as three functions. Although more than one function can be assigned to multiplexed pins,
the pins support only one function at a time.
and programming the ARM7TDMI-S processor, visit the ARM Web site at www.arm.com.
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