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ARM940T PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ARM940T
기능 Manual
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ARM940T 데이터시트, 핀배열, 회로
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ARM940T
(Rev 2)
Technical Reference Manual
Copyright © 1999, 2000 ARM Limited. All rights reserved.
ARM DDI 0144B




ARM940T pdf, 반도체, 판매, 대치품
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Contents
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Caches and Write Buffer
4.1 Cache architecture ..................................................................................... 4-2
4.2 ICache ........................................................................................................ 4-5
4.3 DCache ....................................................................................................... 4-8
4.4 The write buffer ......................................................................................... 4-12
4.5 Cache lockdown ....................................................................................... 4-16
Clock Modes
5.1 About ARM940T clocking ........................................................................... 5-2
5.2 FastBus mode ............................................................................................ 5-3
5.3 Synchronous mode ..................................................................................... 5-4
5.4 Asynchronous mode ................................................................................... 5-6
Bus Interface Unit
6.1 About the ARM940T bus interface ............................................................. 6-2
6.2 ASB transfers ............................................................................................. 6-3
6.3 External aborts ......................................................................................... 6-17
6.4 Memory access order ............................................................................... 6-18
Coprocessor Interface
7.1 About the coprocessor interface ................................................................. 7-2
7.2 LDC or STC ................................................................................................ 7-5
7.3 MCR/MRC .................................................................................................. 7-9
7.4 Interlocked MCR ....................................................................................... 7-11
7.5 CDP .......................................................................................................... 7-13
7.6 Privileged instructions ............................................................................... 7-15
7.7 Busy-waiting and interrupts ...................................................................... 7-17
Debug Support
8.1 About debug support .................................................................................. 8-2
8.2 Debug systems ........................................................................................... 8-3
8.3 Debug interface signals .............................................................................. 8-5
8.4 Scan chains and JTAG interface .............................................................. 8-11
8.5 The JTAG state machine .......................................................................... 8-12
8.6 Test data registers .................................................................................... 8-18
8.7 ARM940T core clocks .............................................................................. 8-27
8.8 Determining the core and system state .................................................... 8-29
8.9 Exit from debug state ................................................................................ 8-33
8.10 The behavior of the program counter during debug ................................. 8-36
8.11 EmbeddedICE unit ................................................................................... 8-39
8.12 Vector catching ......................................................................................... 8-46
8.13 Single-stepping ......................................................................................... 8-47
8.14 Debug communications channel .............................................................. 8-48
8.15 The debugger view of the cache .............................................................. 8-52
iv
Copyright © 1999, 2000 ARM Limited. All rights reserved.
ARM DDI 0144B

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ARM940T 전자부품, 판매, 대치품
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Preface
This preface introduces the ARM940T and its reference documentation. It contains the
following sections:
About this document on page viii
Further reading on page xii
Feedback on page xiii.
ARM DDI 0144B
Copyright © 1999, 2000 ARM Limited. All rights reserved.
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