21.2-S3-C2410X-052003
USER'S MANUAL
S3C2410X
32-Bit RISC
Microprocessor
Revision 1.2
S3C2410X
32-BIT RISC
MICROPROCESSOR
USER'S MANUAL
Revision 1.2
Important Notice
The information in this publication has been
carefully checked and is believed to be entirely
accurate at the time of publication. Samsung
assumes no responsibility, however, for possible
errors or omissions, or for any consequences
resulting from the use of the information contained
herein.
Samsung reserves the right to make changes in its
products or product specifications with the intent to
improve function or design at any time and without
notice and is not required to update this
documentation to reflect such changes.
This publication does not convey to a purchaser of
semiconductor devices described herein any license
under the patent rights of Samsung or others.
Samsung makes no warranty, representation, or
guarantee regarding the suitability of its products for
any particular purpose, nor does Samsung assume
any liability arising out of the application or use of
any product or circuit and specifically disclaims any
and all liability, including without limitation any
consequential or incidental damages.
"Typical" parameters can and do vary in different
applications. All operating parameters, including
"Typicals" must be validated for each customer
application by the customer's technical experts.
Samsung products are not designed, intended, or
authorized for use as components in systems
intended for surgical implant into the body, for other
applications intended to support or sustain life, or for
any other application in which the failure of the
Samsung product could create a situation where
personal injury or death may occur.
Should the Buyer purchase or use a Samsung
product for any such unintended or unauthorized
application, the Buyer shall indemnify and hold
Samsung and its officers, employees, subsidiaries,
affiliates, and distributors harmless against all
claims, costs, damages, expenses, and reasonable
attorney fees arising out of, either directly or
indirectly, any claim of personal injury or death that
may be associated with such unintended or
unauthorized use, even if such claim alleges that
Samsung was negligent regarding the design or
manufacture of said product.
S3C2410X 32-Bit RISC Microprocessor
User's Manual, Revision 1.2
Publication Number: 21.2-S3-C2410X-052003
2003 Samsung Electronics
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electric or mechanical, by photocopying, recording, or otherwise, without the prior
written consent of Samsung Electronics.
Samsung Electronics' microcontroller business has been awarded full ISO-9001
certification (BSI Certificate No. FM24653). All semiconductor products are designed
and manufactured in accordance with the highest quality standards and objectives.
Samsung Electronics Co., Ltd.
San #24 Nongseo-Ri, Giheung- Eup
Yongin-City, Gyeonggi-Do, Korea
C.P.O. Box #37, Suwon 449-900
TEL: (82)-(031)-209-1934
FAX: (82)-(031)-209-1899
Home Page: http://www.samsungsemi.com
Printed in the Republic of Korea
S3C2410X MICROPROCESSOR iii
Table of Contents
Chapter 1 Product Overview
Introduction..............................................................................................................................................1-1
Features ..................................................................................................................................................1-2
Block Diagram.........................................................................................................................................1-5
Pin Assignments......................................................................................................................................1-6
Signal Descriptions..........................................................................................................................1-20
S3C2410X Special Registers...........................................................................................................1-25
Chapter 2 Programmer's Model
Overview.................................................................................................................................................2-1
Processor Operating States.............................................................................................................2-1
Switching State ...............................................................................................................................2-1
Memory Formats.............................................................................................................................2-1
Big-Endian Format ..........................................................................................................................2-2
Little-Endian Format........................................................................................................................2-2
Instruction Length............................................................................................................................2-2
Operating Modes.............................................................................................................................2-3
Registers.........................................................................................................................................2-3
The Program Status Registers.........................................................................................................2-7
Exceptions ......................................................................................................................................2-10
Interrupt Latencies...........................................................................................................................2-15
Reset...............................................................................................................................................2-15
iv S3C2410X MICROPROCESSOR
Table of Contents (Continued)
Chapter 3 ARM Instruction Set
Instruction Set Summay.......................................................................................................................... 3-1
Format Summary ........................................................................................................................... 3-1
Instruction Summary....................................................................................................................... 3-2
The Condition Field................................................................................................................................. 3-4
Branch and Exchange (BX)..................................................................................................................... 3-5
Instruction Cycle Times .................................................................................................................. 3-5
Assembler Syntax........................................................................................................................... 3-5
Using R15 As An Operand.............................................................................................................. 3-5
Branch and Branch With Link (B, BL)...................................................................................................... 3-7
The Link Bit .................................................................................................................................... 3-7
Instruction Cycle Times .................................................................................................................. 3-7
Assembler Syntax........................................................................................................................... 3-8
Data Processing...................................................................................................................................... 3-9
Cpsr Flags...................................................................................................................................... 3-11
Shifts.............................................................................................................................................. 3-12
Immediate Operand Rotates........................................................................................................... 3-16
Writing to R15 ................................................................................................................................ 3-16
Using R15 As an Operandy ............................................................................................................ 3-16
TEQ, TST, CMP and CMN Opcodes............................................................................................... 3-16
Instruction Cycle Times .................................................................................................................. 3-16
Assembler Syntax........................................................................................................................... 3-17
Examples ....................................................................................................................................... 3-17
PSR Transfer (MRS, MSR)..................................................................................................................... 3-18
Operand Restrictions...................................................................................................................... 3-18
Reserved Bits................................................................................................................................. 3-20
Examples ....................................................................................................................................... 3-20
Instruction Cycle Times .................................................................................................................. 3-20
Assembly Syntax............................................................................................................................ 3-21
Examples ....................................................................................................................................... 3-21
Multiply and Multiply-Accumulate (MUL, MLA)........................................................................................ 3-22
CPSR Flags.................................................................................................................................... 3-24
Instruction Cycle Times .................................................................................................................. 3-24
Assembler Syntax........................................................................................................................... 3-24
Examples ....................................................................................................................................... 3-24
Multiply Long and Multiply-Accumulate Long (MULL, MLAL)................................................................... 3-25
Operand Restrictions...................................................................................................................... 3-26
Cpsr Flags...................................................................................................................................... 3-26
Instruction Cycle Times .................................................................................................................. 3-26
Assembler Syntax........................................................................................................................... 3-27
Examples ....................................................................................................................................... 3-27
