Cortex-A8 R2P2.pdf - ARM Information Center

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List of TablesTable 15-3 CTI register summary ........................................................................................... 15-10Table 15-4 CTI Control Register bit functions ......................................................................... 15-13Table 15-5 CTI Interrupt Acknowledge Register bit functions ................................................. 15-14Table 15-6 CTI Application Trigger Set Register bit functions ................................................ 15-14Table 15-7 CTI Application Trigger Clear Register bit functions ............................................. 15-15Table 15-8 CTI Application Pulse Register bit functions ......................................................... 15-16Table 15-9 CTI Trigger to Channel Enable Registers bit functions ......................................... 15-17Table 15-10 CTI Channel to Trigger Enable Registers bit functions ......................................... 15-18Table 15-11 CTI Trigger In Status Register bit functions .......................................................... 15-18Table 15-12 CTI Trigger Out Status Register bit functions ....................................................... 15-19Table 15-13 CTI Channel In Status Register bit functions ........................................................ 15-20Table 15-14 CTI Channel Gate Register bit functions .............................................................. 15-20Table 15-15 ASIC Control Register bit functions ...................................................................... 15-22Table 15-16 CTI Channel Out Status Register bit functions ..................................................... 15-23Table 15-17 CTI Integration Test Registers .............................................................................. 15-24Table 15-18 ITTRIGINACK Register bit functions .................................................................... 15-25Table 15-19 ITCHOUT Register bit functions ........................................................................... 15-25Table 15-20 ITTRIGOUT Register bit functions ........................................................................ 15-26Table 15-21 ITTRIGOUT connections to other integration test registers .................................. 15-26Table 15-22 ITTRIGOUTACK Register bit functions ................................................................ 15-27Table 15-23 ITTRIGOUTACK connections to other integration test registers .......................... 15-27Table 15-24 ITCHIN Register bit functions ............................................................................... 15-28Table 15-25 ITTRIGIN Register bit functions ............................................................................ 15-28Table 15-26 ITTRIGIN connections to other integration test registers ...................................... 15-29Table 15-27 Authentication Status Register bit functions ......................................................... 15-30Table 15-28 Device ID Register bit functions ............................................................................ 15-30Table 15-29 Device Type Identifier Register bit functions ........................................................ 15-31Table 15-30 Peripheral Identification Registers bit functions .................................................... 15-31Table 15-31 Component Identification Registers bit functions .................................................. 15-33Table 16-1 Data-processing instructions with a destination ...................................................... 16-5Table 16-2 Data-processing instructions without a destination ................................................. 16-6Table 16-3 MOV and MOVN instructions .................................................................................. 16-6Table 16-4 Multiply instructions ................................................................................................ 16-7Table 16-5 Parallel arithmetic instructions ................................................................................ 16-8Table 16-6 Extended instructions ............................................................................................. 16-8Table 16-7 Miscellaneous data-processing instructions ........................................................... 16-8Table 16-8 Status register access instructions ......................................................................... 16-9Table 16-9 Load instructions ..................................................................................................... 16-9Table 16-10 Store instructions .................................................................................................. 16-10Table 16-11 Branch instructions ............................................................................................... 16-12Table 16-12 Dual-issue restrictions .......................................................................................... 16-13Table 16-13 Memory system effects on instruction timings ...................................................... 16-14Table 16-14 ThumbEE instructions ........................................................................................... 16-16Table 16-15 Advanced SIMD integer ALU instructions ............................................................. 16-22Table 16-16 Advanced SIMD integer multiply instructions ....................................................... 16-25Table 16-17 Advanced SIMD integer shift instructions ............................................................. 16-28Table 16-18 Advanced SIMD floating-point instructions ........................................................... 16-29xviii Copyright © 2006-2008 ARM Limited. All rights reserved. ARM DDI 0344E
List of TablesTable 16-19 Advanced SIMD byte permute instructions ........................................................... 16-30Table 16-20 Advanced SIMD load/store instructions ................................................................ 16-33Table 16-21 Advanced SIMD register transfer instructions ....................................................... 16-40Table 16-22 VFP Instruction cycle counts ................................................................................. 16-42Table 17-1 Format of timing parameter tables .......................................................................... 17-3Table 17-2 Timing parameters of AXI interface ......................................................................... 17-4Table 17-3 Timing parameters of ATB and CTI interfaces ........................................................ 17-6Table 17-4 Timing parameters of APB interface and miscellaneous debug signals ................. 17-7Table 17-5 Timing parameters of the L1 and L2 MBIST interface ............................................ 17-9Table 17-6 Timing parameters of the L2 preload interface ..................................................... 17-10Table 17-7 Timing parameters of the DFT interface ............................................................... 17-11Table 17-8 Timing parameters of miscellaneous signals ........................................................ 17-12Table A-1 AXI interface .............................................................................................................. A-2Table A-2 ATB interface ............................................................................................................ A-3Table A-3 MBIST interface ........................................................................................................ A-4Table A-4 DFT and additional MBIST pin requirements ............................................................ A-5Table A-5 Preload engine interface ........................................................................................... A-7Table A-6 APB interface ............................................................................................................ A-8Table A-7 Miscellaneous signals ............................................................................................. A-10Table A-8 Miscellaneous debug signals .................................................................................. A-14Table A-9 Miscellaneous ETM and CTI signals ....................................................................... A-17Table B-1 Advanced SIMD mnemonics ..................................................................................... B-2Table B-2 VFP data-processing mnemonics ............................................................................. B-5ARM DDI 0344E Copyright © 2006-2008 ARM Limited. All rights reserved. xix
Page 1 and 2: Cortex -A8Revision: r2p2Technical R
Page 3 and 4: Product StatusThe information in th
Page 5 and 6: ContentsCortex-A8 Technical Referen
Page 7 and 8: Contents7.8 Parity detection ......
Page 9 and 10: ContentsA.2 ATB interface .........
Page 11 and 12: List of TablesCortex-A8 Technical R
Page 14 and 15: List of TablesTable 3-103 Results o
Page 16 and 17: List of TablesTable 12-1 Access to
Page 20 and 21: List of Tablesxx Copyright © 2006-
Page 22 and 23: List of FiguresFigure 3-10 Memory M
Page 24 and 25: List of FiguresFigure 10-13 Retenti
Page 26 and 27: List of FiguresFigure 15-16 CTI Cha
Page 28 and 29: PrefaceAbout this manualThis is the
Page 30 and 31: PrefaceChapter 16 Instruction Cycle
Page 32 and 33: PrefacePrefix CPrefix HPrefix nPref
Page 34 and 35: PrefaceFeedbackARM welcomes feedbac
Page 36 and 37: Introduction1.1 About the processor
Page 38 and 39: Introduction1.3 Components of the p
Page 40 and 41: Introduction1.3.4 Load/storeThe loa
Page 42 and 43: Introduction1.4 External interfaces
Page 44 and 45: Introduction1.6 Power managementThe
Page 46 and 47: Introduction1.8 Product revisionsTh
Page 48 and 49: Introduction1-14 Copyright © 2006-
Page 50 and 51: Programmer’s Model• Hardware co
Page 52 and 53: Programmer’s Model2.2 Thumb-2 ins
Page 54 and 55: Programmer’s Model2.3 ThumbEE ins
Page 56 and 57: Programmer’s ModelThumbEE Handler
Page 58 and 59: Programmer’s Model2.4 Jazelle Ext
Page 60 and 61: Programmer’s Model— the registe
Page 62 and 63: Programmer’s ModelNonsecureSecure
Page 64 and 65: Programmer’s Model2.7 VFPv3 archi
Page 66 and 67: Programmer’s Model2.9 Data typesT
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Programmer’s ModelBitHigher addre
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Programmer’s Model2.12 Operating
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Programmer’s ModelIn privileged m
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Programmer’s Model16 generalpurpo
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Programmer’s ModelIn ARM state, y
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Programmer’s Model2.14.5 The GE[3
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Programmer’s ModelT bitThe T bit
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Programmer’s ModelOnly secure pri
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Programmer’s Model2.15.2 Leaving
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Programmer’s ModelAn internal or
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Programmer’s ModelImprecise data
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Programmer’s ModelNoteIf the Embe
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Programmer’s Model2.16 Software c
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Programmer’s Model2.17.2 Security
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Programmer’s Model2.18 Control co
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System Control Coprocessor3.1 About
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System Control CoprocessorTable 3-1
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System Control CoprocessorSecurity
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System Control Coprocessor3.1.6 Sys
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System Control CoprocessorThe TCM T
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System Control CoprocessorFigure 3-
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System Control Coprocessor31 28 27
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System Control Coprocessor3.2.20 c0
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System Control Coprocessora. An ent
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System Control CoprocessorThe Auxil
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System Control CoprocessorBits Fiel
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System Control Coprocessora. n is t
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System Control CoprocessorMRC p15,
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System Control CoprocessorVA to PA
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System Control CoprocessorInvalidat
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System Control CoprocessorThe PMNC
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System Control CoprocessorCWhen wri
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System Control Coprocessorb. The EN
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System Control CoprocessorCWhen rea
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System Control Coprocessor• acces
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System Control CoprocessorYou can c
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System Control CoprocessorIf the op
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System Control CoprocessorTo access
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System Control Coprocessora. An ent
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System Control CoprocessorTo access
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System Control CoprocessorThe PLE I
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System Control CoprocessorTo perfor
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System Control CoprocessorLDR R1, =
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System Control CoprocessorLDR R1, =
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System Control CoprocessorL1 Data 0
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System Control CoprocessorInstructi
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System Control CoprocessorParity/EC
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System Control CoprocessorL2 parity
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System Control CoprocessorThe L2 da
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Chapter 4Unaligned Data and Mixed-e
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Unaligned Data and Mixed-endian Dat
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Unaligned Data and Mixed-endian Dat
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Chapter 5Program Flow PredictionThi
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Program Flow Prediction5.2 Predicte
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Program Flow Prediction5.2.1 Return
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Program Flow Prediction5.4 Guidelin
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Program Flow Prediction5.6 Operatin
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Chapter 6Memory Management UnitThis
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Memory Management Unit6.2 Memory ac
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Memory Management Unit6.4 MMU inter
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Memory Management Unit6.6 TLB lockd
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Chapter 7Level 1 Memory SystemThis
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Level 1 Memory System7.2 Cache orga
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Level 1 Memory System7.3 Memory att
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Level 1 Memory SystemTable 7-1 Memo
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Level 1 Memory System7.5 Data cache
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Level 1 Memory SystemAn exception t
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Level 1 Memory System7.8 Parity det
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Chapter 8Level 2 Memory SystemThis
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Level 2 Memory System8.2 Cache orga
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Level 2 Memory System8.3 Enabling a
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Level 2 Memory SystemControl Regist
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Level 2 Memory System8.4.4 Memory r
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Level 2 Memory System8.5 Synchroniz
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Level 2 Memory System8.6 Locked acc
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Chapter 9External Memory InterfaceT
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External Memory Interfaceto the wri
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External Memory InterfaceTable 9-2
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External Memory Interface9.3 AXI in
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External Memory InterfaceBWBCNoTTSS
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Chapter 10Clock, Reset, and Power C
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Clock, Reset, and Power Controlfami
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Clock, Reset, and Power Control10.2
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Clock, Reset, and Power Control•
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Clock, Reset, and Power Control2. F
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Clock, Reset, and Power ControlNote
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Clock, Reset, and Power ControlAfte
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Clock, Reset, and Power Control•
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Clock, Reset, and Power Control—
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Clock, Reset, and Power ControlThe
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Clock, Reset, and Power ControlPowe
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Clock, Reset, and Power ControlTo p
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Clock, Reset, and Power ControlPowe
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Clock, Reset, and Power ControlATBI
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Clock, Reset, and Power Control7. P
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Chapter 11Design for TestThis chapt
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Design for Test11.1.2 MBIST registe
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Design for Testdseed[3:0]Write the
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Design for TestNoteOnly arrays with
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Design for Test• read and write l
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Design for TestTable 11-10 Selectin
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Design for TestTable 11-15 shows ho
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Design for TestArrayFail[22:0] fail
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Design for TestWhen testing the tag
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Design for Test• Bitmap test mode
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Design for TestCLKARESETnMBISTMODEM
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Design for TestCLKARESETnMBISTMODEM
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Design for TestTable 11-19 shows th
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Design for TestNoteNormal MBIST tes
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Design for TestRowmaxmax - 11 1 1 1
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Design for Test2. R, W_, R_, incr.3
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Design for TestRow3210Addressingdir
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Design for TestRow32100 00 00 00 00
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Design for Test11.2 ATPG test featu
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Design for TestWBR in place of the
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Design for TestOne methodology for
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Chapter 12DebugThis chapter describ
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Debug12.1.3 Debug targetThe debug t
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DebugWhen execution of a monitor ta
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Debug12.3 Debug register interfaceY
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DebugTable 12-3 Debug memory-mapped
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Debug12.3.6 Power domains and debug
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DebugLocks permissionYou can lock t
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DebugTable 12-6 shows the behavior
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Debug12.4 Debug register descriptio
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DebugTable 12-11 shows how the bit
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DebugThe Debug Self Address Offset
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DebugBits Field FunctionTable 12-14
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DebugBits Field Function[9] - Reser
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DebugThe DTR access mode can be one
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DebugBitsFieldFunctionTable 12-16 s
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DebugTable 12-17 Vector Catch Regis
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Debug31 3 2 1 0ReservedNot write-th
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DebugTable 12-23 Breakpoint Control
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Debug12.4.16 Watchpoint Control Reg
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DebugTable 12-26 Watchpoint Control
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DebugNoteOn system reset, PRSR[1] r
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DebugTable 12-32 Management registe
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DebugFigure 12-19 shows the bit arr
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Debug12.5.5 Integration Mode Contro
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Debug12.5.8 Lock Access RegisterThe
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Debug31 8 7 6 5 4 3 2 1 0ReservedSe
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DebugTable 12-44 Peripheral Identif
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DebugTable 12-50 shows how the bit
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Debug12.6.2 Halting debug event•
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Debug12.6.5 Watchpoint debug events
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DebugNoteThe Data Abort handler che
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DebugIf the debugged code is not ru
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DebugTable 12-54 shows the read PC
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Debug12.8.4 Writing to the CPSR in
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DebugCoprocessor instructionsThe ru
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DebugSVCSMCUndefinedThe processor i
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Debug12.9 Cache debugThere are seve
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Debug12.10 External debug interface
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DebugDBGROMADDRThe DBGROMADDR signa
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Debug4. Issue an Instruction Synchr
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Debug12.11.1 Debug communications c
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DebugDebugger access to the DCCA de
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DebugTable 12-58 Values to write to
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Debug}when 1:byte_address_select :=
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DebugNoteIn Example 12-10 on page 1
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Debug12.11.5 Debug state exitWhen e
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DebugExample 12-15 Reading the PCRe
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DebugExample 12-19 Checking for an
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DebugExample 12-22 shows the sequen
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Debug}dscr := ReadDebugRegister(34)
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Debug}scr := (scr | 1);WriteCPReg(1
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DebugIf on a power-down request fro
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Debug; Step 2. Loop writing words f
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Chapter 13NEON and VFP Programmer
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NEON and VFP Programmer’s Modelre
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NEON and VFP Programmer’s ModelS0
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NEON and VFP Programmer’s ModelBa
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NEON and VFP Programmer’s ModelFC
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NEON and VFP Programmer’s ModelTa
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NEON and VFP Programmer’s Model31
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NEON and VFP Programmer’s ModelTh
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NEON and VFP Programmer’s ModelCo
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Chapter 14Embedded Trace MacrocellT
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Embedded Trace Macrocell14.1.2 The
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Embedded Trace Macrocell(DAP) throu
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Embedded Trace MacrocellTable 14-1
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Embedded Trace MacrocellRegister na
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Embedded Trace MacrocellSee the ETM
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Embedded Trace Macrocell14.5 Precis
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Embedded Trace MacrocellThe followi
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Embedded Trace Macrocellcomparator
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Embedded Trace Macrocell14.8 Instru
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Embedded Trace MacrocellWhen a WFI
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Embedded Trace MacrocellYou can use
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Chapter 15Cross Trigger InterfaceTh
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Cross Trigger Interface• An input
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Cross Trigger Interface15.1.2 The c
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Cross Trigger InterfaceTable 15-2 T
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Cross Trigger Interface15.4 About t
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Cross Trigger InterfaceTable 15-3 C
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Cross Trigger Interface15.6 CTI reg
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Cross Trigger InterfaceNoteThe CTII
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Cross Trigger InterfaceBits Field F
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Cross Trigger Interface15.6.9 CTI T
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Cross Trigger InterfaceTable 15-14
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Cross Trigger Interface15.7.4 ITTRI
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Cross Trigger Interface15.8.3 Devic
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Cross Trigger InterfaceActual Compo
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Chapter 16Instruction Cycle TimingT
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Instruction Cycle Timing16.2 Instru
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Instruction Cycle Timingis availabl
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Instruction Cycle TimingTable 16-4
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Instruction Cycle Timing16.2.7 Stat
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Instruction Cycle TimingThe number
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Instruction Cycle Timing16.3 Dual-i
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Instruction Cycle TimingReplayevent
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Instruction Cycle TimingPredicting
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Instruction Cycle TimingUsing MCR i
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Instruction Cycle TimingExample 16-
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Instruction Cycle Timing16.6.3 Adva
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Instruction Cycle Timing16.6.5 Adva
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Instruction Cycle TimingFor example
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Instruction Cycle Timing16.7 VFP in
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Instruction Cycle Timing16.7.2 VFP
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Chapter 17AC CharacteristicsThis ch
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AC CharacteristicsThe timing parame
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AC CharacteristicsTable 17-2 Timing
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AC Characteristics17.4 APB interfac
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AC Characteristics17.5 L1 and L2 MB
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AC Characteristics17.7 DFT interfac
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AC Characteristicsb. Figure 10-6 on
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Appendix ASignal DescriptionsThis a
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Signal DescriptionsA.2 ATB interfac
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Signal DescriptionsTable A-3 MBIST
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Signal DescriptionsA.4 Preload engi
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Signal DescriptionsTable A-6 APB in
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Signal DescriptionsTable A-7 Miscel
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Signal DescriptionsA.8 Miscellaneou
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Appendix BInstruction MnemonicsThis
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Instruction MnemonicsTable B-1 Adva
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Instruction MnemonicsB.2 VFP data-p
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GlossaryThis glossary describes som
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GlossaryApplication Specific Integr
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GlossaryRead ID capabilityThe maxim
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GlossaryByte-invariantIn a byte-inv
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GlossaryCAM includes comparison log
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GlossaryDouble-precision valueConsi
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Glossary• arithmetic operation re
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GlossaryInvalidateJazelle architect
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GlossaryPAPenaltyPower-on resetPref
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GlossarySetSet-associative cacheSee
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GlossaryTrapTrigger instructionAn e
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GlossaryWrite-back (WB)Write buffer
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