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ARM7TDMI_doc - ARM 7TDMI Data Sheet Document Number:ARM DDI...

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Advanced RISC Machines ARM Document Number:ARM DDI 0029E Issued: August 1995 Copyright Advanced RISC Machines Ltd (ARM) 1995 All rights reserved ARM 7TDMI Data Sheet Open Access Proprietary Notice ARM, the ARM Powered logo, EmbeddedICE, BlackICE and ICEbreaker are trademarks of Advanced RISC Machines Ltd. Neither the whole nor any part of the information contained in, or the product described in, this datasheet may be adapted or reproduced in any material form except with the prior written permission of the copyright holder. The product described in this datasheet is subject to continuous developments and improvements. All particulars of the product and its use contained in this datasheet are given by ARM in good faith. However, all warranties implied or expressed, including but not limited to implied warranties or merchantability, or fitness for purpose, are excluded. This datasheet is intended only to assist the reader in the use of the product. ARM Ltd shall not be liable for any loss or damage arising from the use of any information in this datasheet, or any error or omission in such information, or any incorrect use of the product. Change Log Issue Date By Change A (Draft 0.1) Sept 1994 EH/BJH Created. (Draft 0.2) Oct 1994 EH First pass review comments added. B Dec 1994 EH/AW First formal release C Dec 1994 AW Further review comments Mar 1995 AW Reissued with open access status. No change to the content. D draft1 Mar 1995 AW Changes in line with the ARM7TDM datasheet. Further technical changes. D Mar 1995 AW Review comments added. E Aug 1995 AP Signals added plus minor changes.
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ii ARM7TDMI Data Sheet ARM DDI 0029E Open Access Key: Open Access No confidentiality To enable document tracking, the document number has two codes: Major release - Pre-release A First release B Second release etc etc Draft Status Full and complete draft1 First Draft draft2 Second Draft etc etc E Embargoed (date given)
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ARM7TDMI Data Sheet ARM DDI 0029E Contents-i 11 1 Open Access 1 Introduction 1-1 1.1 Introduction 1-2 1.2 ARM7TDMI Architecture 1-2 1.3 ARM7TDMI Block Diagram 1-4 1.4 ARM7TDMI Core Diagram 1-5 1.5 ARM7TDMI Functional Diagram 1-6 2 Signal Description 2-1 2.1 Signal Description 2-2 3 Programmer’s Model 3-1 3.1 Processor Operating States 3-2 3.2 Switching State 3-2 3.3 Memory Formats 3-2 3.4 Instruction Length 3-3 3.5 Data Types 3-3 3.6 Operating Modes 3-4 3.7 Registers 3-4 3.8 The Program Status Registers 3-8 3.9 Exceptions 3-10 3.10 Interrupt Latencies 3-14 3.11 Reset 3-15 Contents TOC
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Contents ARM7TDMI Data Sheet ARM DDI 0029E Contents-ii Open Access 4 ARM Instruction Set 4-1 4.1 Instruction Set Summary 4-2 4.2 The Condition Field 4-5 4.3 Branch and Exchange (BX) 4-6 4.4 Branch and Branch with Link (B, BL) 4-8 4.5 Data Processing 4-10 4.6 PSR Transfer (MRS, MSR) 4-18 4.7 Multiply and Multiply-Accumulate (MUL, MLA) 4-23 4.8 Multiply Long and Multiply-Accumulate Long (MULL,MLAL) 4-25 4.9 Single Data Transfer (LDR, STR) 4-28 4.10 Halfword and Signed Data Transfer 4-34 4.11 Block Data Transfer (LDM, STM) 4-40 4.12 Single Data Swap (SWP) 4-47 4.13 Software Interrupt (SWI) 4-49 4.14 Coprocessor Data Operations (CDP) 4-51 4.15
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