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ARM720T PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 ARM720T
기능 General-purpose 32-bit Microprocessor
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ARM720T 데이터시트, 핀배열, 회로
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ARM720T
(Rev 3)
Technical Reference Manual
ARM DDI 0192A




ARM720T pdf, 반도체, 판매, 대치품
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
iv
2.8 Exceptions .................................................................................................. 2-16
2.9 Relocation of low virtual addresses by the FCSE PID................................ 2-22
2.10 Reset .......................................................................................................... 2-23
2.11 Implementation-defined behavior of instructions ........................................ 2-24
Configuration
3.1 About configuration....................................................................................... 3-2
3.2 Internal coprocessor instructions.................................................................. 3-3
3.3 Registers ...................................................................................................... 3-4
Instruction and Data Cache
4.1 About the instruction and data cache ........................................................... 4-2
4.2 IDC validity ................................................................................................... 4-4
4.3 IDC enable, disable, and reset ..................................................................... 4-5
4.4 IDC disable for secure applications .............................................................. 4-6
Write Buffer
5.1 About the write buffer ................................................................................... 5-2
5.2 Write buffer operation ................................................................................... 5-3
Memory Management Unit
6.1 About the MMU............................................................................................. 6-2
6.2 MMU program accessible registers .............................................................. 6-4
6.3 Address translation process ......................................................................... 6-5
6.4 Level 1 descriptor ......................................................................................... 6-7
6.5 Page table descriptor.................................................................................... 6-8
6.6 Section descriptor......................................................................................... 6-9
6.7 Translating section references ................................................................... 6-11
6.8 Level 2 descriptor ....................................................................................... 6-12
6.9 Translating small page references ............................................................. 6-14
6.10 Translating large page references.............................................................. 6-16
6.11 MMU faults and CPU aborts....................................................................... 6-18
6.12 Fault address and fault status registers...................................................... 6-19
6.13 Domain access control ............................................................................... 6-21
6.14 Fault checking sequence............................................................................ 6-22
6.15 External aborts ........................................................................................... 6-25
6.16 Interaction of the MMU, IDC, and write buffer ............................................ 6-26
Debug Interface
7.1 About the debug interface ............................................................................ 7-2
7.2 Debug systems............................................................................................. 7-4
7.3 Entering debug state .................................................................................... 7-7
7.4 Scan chains and JTAG interface .................................................................. 7-9
7.5 Reset .......................................................................................................... 7-11
7.6 Public instructions....................................................................................... 7-12
7.7 Test data registers...................................................................................... 7-16
7.8 ARM7TDM core clocks............................................................................... 7-23
Copyright © ARM Limited 1997, 1998, 2000. All rights reserved.
ARM DDI 0192A

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ARM720T 전자부품, 판매, 대치품
List of Tables
ARM720T Technical Reference Manual
ARM DDI 0192A
Table 1-1
Table 1-2
Table 1-3
Table 1-4
Table 1-5
Table 1-6
Table 1-7
Table 1-8
Table 1-9
Table 1-10
Table 1-11
Table 1-12
Table 2-1
Table 2-2
Table 2-3
Table 2-4
Table 3-1
Table 3-2
Table 3-3
Table 6-1
Table 6-2
Table 6-3
Table 6-4
Key to tables ......................................................................................... 1-5
ARM instruction summary ..................................................................... 1-8
Addressing mode 2 ............................................................................. 1-11
Addressing mode 2 (privileged) .......................................................... 1-12
Addressing mode 3 ............................................................................. 1-12
Addressing mode 4 (load) ................................................................... 1-13
Addressing mode 4 (store).................................................................. 1-13
Addressing mode 5 ............................................................................. 1-14
Operand 2 ........................................................................................... 1-14
Fields................................................................................................... 1-14
Condition fields.................................................................................... 1-15
Thumb instruction summary ............................................................... 1-17
ARM720T modes of operation .............................................................. 2-7
PSR mode bit values........................................................................... 2-14
Exception entry and exit...................................................................... 2-17
Exception vector addresses ................................................................ 2-20
Cache and MMU control register .......................................................... 3-4
Cache operation.................................................................................... 3-9
TLB operations.................................................................................... 3-10
MMU program accessible registers....................................................... 6-4
Interpreting level 1 descriptor bits [1:0] ................................................. 6-7
Interpreting access permission (AP) bits............................................. 6-10
Interpreting page table entry bits 1:0................................................... 6-12
Copyright © ARM Limited 1997, 1998, 2000. All rights reserved.
vii

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ARM720T

General-purpose 32-bit Microprocessor

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