Cortex-A8 R2P2.pdf - ARM Information Center

More documents

Recommendations

Info

Program Flow Prediction5-10 Copyright © 2006-2008 ARM Limited. All rights reserved. ARM DDI 0344E
Chapter 6Memory Management UnitThis chapter describes the Memory Management Unit (MMU). It contains the followingsections:• About the MMU on page 6-2• Memory access sequence on page 6-3• 16MB supersection support on page 6-4• MMU interaction with memory system on page 6-5• External aborts on page 6-6• TLB lockdown on page 6-7• MMU software-accessible registers on page 6-8.ARM DDI 0344E Copyright © 2006-2008 ARM Limited. All rights reserved. 6-1
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 18 and 19:
List of TablesTable 15-3 CTI regist
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
Page 68 and 69:
Programmer’s ModelBitHigher addre
Page 70 and 71:
Programmer’s Model2.12 Operating
Page 72 and 73:
Programmer’s ModelIn privileged m
Page 74 and 75:
Programmer’s Model16 generalpurpo
Page 76 and 77:
Programmer’s ModelIn ARM state, y
Page 78 and 79:
Programmer’s Model2.14.5 The GE[3
Page 80 and 81:
Programmer’s ModelT bitThe T bit
Page 82 and 83:
Programmer’s ModelOnly secure pri
Page 84 and 85:
Programmer’s Model2.15.2 Leaving
Page 86 and 87:
Programmer’s ModelAn internal or
Page 88 and 89:
Programmer’s ModelImprecise data
Page 90 and 91:
Programmer’s ModelNoteIf the Embe
Page 92 and 93:
Programmer’s Model2.16 Software c
Page 94 and 95:
Programmer’s Model2.17.2 Security
Page 96 and 97:
Programmer’s Model2.18 Control co
Page 98 and 99:
System Control Coprocessor3.1 About
Page 100 and 101:
System Control CoprocessorTable 3-1
Page 102 and 103:
System Control CoprocessorSecurity
Page 104 and 105:
System Control Coprocessor3.1.6 Sys
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
System Control CoprocessorThe TCM T
Page 126 and 127:
Page 128 and 129:
System Control CoprocessorFigure 3-
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
System Control Coprocessor31 28 27
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
System Control Coprocessor3.2.20 c0
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
System Control Coprocessora. An ent
Page 156 and 157:
Page 158 and 159:
System Control CoprocessorThe Auxil
Page 160 and 161:
System Control CoprocessorBits Fiel
Page 162 and 163:
Page 164 and 165:
System Control Coprocessora. n is t
Page 166 and 167:
Page 168 and 169:
System Control CoprocessorFigure 3-
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178:
Page 181 and 182:
System Control CoprocessorMRC p15,
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
System Control CoprocessorVA to PA
Page 195 and 196:
Page 197 and 198:
System Control CoprocessorInvalidat
Page 199 and 200:
System Control CoprocessorThe PMNC
Page 201 and 202:
System Control CoprocessorCWhen wri
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
System Control CoprocessorMRC p15,
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
System Control Coprocessorb. The EN
Page 215 and 216:
System Control CoprocessorCWhen rea
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
System Control Coprocessor• acces
Page 223 and 224:
Page 225 and 226:
System Control CoprocessorYou can c
Page 227 and 228:
System Control CoprocessorIf the op
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
System Control CoprocessorTo access
Page 235 and 236:
Page 237 and 238:
System Control Coprocessora. An ent
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
System Control CoprocessorTo access
Page 245 and 246:
System Control CoprocessorThe PLE I
Page 247 and 248: System Control CoprocessorTable 3-1
Page 253 and 254: System Control CoprocessorMRC p15,
Page 255 and 256: System Control Coprocessor31 25 24
Page 257 and 258: System Control Coprocessor3.2.72 c1
Page 261 and 262: System Control CoprocessorFigure 3-
Page 263 and 264: System Control CoprocessorTo perfor
Page 265 and 266: System Control Coprocessor3.2.75 c1
Page 267 and 268: System Control CoprocessorLDR R1, =
Page 269 and 270: System Control CoprocessorLDR R1, =
Page 271 and 272: System Control CoprocessorL1 Data 0
Page 273 and 274: System Control CoprocessorInstructi
Page 275 and 276: System Control CoprocessorParity/EC
Page 279 and 280: System Control CoprocessorL2 parity
Page 281 and 282: System Control CoprocessorThe L2 da
Page 283 and 284: Chapter 4Unaligned Data and Mixed-e
Page 285 and 286: Unaligned Data and Mixed-endian Dat
Page 287 and 288: Unaligned Data and Mixed-endian Dat
Page 289 and 290: Chapter 5Program Flow PredictionThi
Page 291 and 292: Program Flow Prediction5.2 Predicte
Page 293 and 294: Program Flow Prediction5.2.1 Return
Page 295 and 296: Program Flow Prediction5.4 Guidelin
Page 297: Program Flow Prediction5.6 Operatin
Page 301 and 302: Memory Management Unit6.2 Memory ac
Page 303 and 304: Memory Management Unit6.4 MMU inter
Page 305 and 306: Memory Management Unit6.6 TLB lockd
Page 307 and 308: Chapter 7Level 1 Memory SystemThis
Page 309 and 310: Level 1 Memory System7.2 Cache orga
Page 311 and 312: Level 1 Memory System7.3 Memory att
Page 313 and 314: Level 1 Memory SystemTable 7-1 Memo
Page 315 and 316: Level 1 Memory System7.5 Data cache
Page 317 and 318: Level 1 Memory SystemAn exception t
Page 319 and 320: Level 1 Memory System7.8 Parity det
Page 321 and 322: Chapter 8Level 2 Memory SystemThis
Page 323 and 324: Level 2 Memory System8.2 Cache orga
Page 325 and 326: Level 2 Memory System8.3 Enabling a
Page 327 and 328: Level 2 Memory SystemControl Regist
Page 329 and 330: Level 2 Memory System8.4.4 Memory r
Page 331 and 332: Level 2 Memory System8.5 Synchroniz
Page 333 and 334: Level 2 Memory System8.6 Locked acc
Page 335 and 336: Chapter 9External Memory InterfaceT
Page 337 and 338: External Memory Interfaceto the wri
Page 339 and 340: External Memory InterfaceTable 9-2
Page 341 and 342: External Memory Interface9.3 AXI in
Page 343 and 344: External Memory InterfaceBWBCNoTTSS
Page 349 and 350:
External Memory InterfaceTable 9-6
Page 351 and 352:
External Memory InterfaceTable 9-7
Page 353 and 354:
Chapter 10Clock, Reset, and Power C
Page 355 and 356:
Clock, Reset, and Power Controlfami
Page 357 and 358:
Clock, Reset, and Power Control10.2
Page 359 and 360:
Clock, Reset, and Power Control•
Page 361 and 362:
Clock, Reset, and Power Control2. F
Page 363 and 364:
Clock, Reset, and Power ControlNote
Page 365 and 366:
Clock, Reset, and Power ControlAfte
Page 367 and 368:
Clock, Reset, and Power Control•
Page 369 and 370:
Clock, Reset, and Power Control—
Page 371 and 372:
Clock, Reset, and Power ControlThe
Page 373 and 374:
Clock, Reset, and Power ControlPowe
Page 375 and 376:
Clock, Reset, and Power ControlTo p
Page 377 and 378:
Clock, Reset, and Power ControlPowe
Page 379 and 380:
Clock, Reset, and Power ControlATBI
Page 381 and 382:
Clock, Reset, and Power Control7. P
Page 383 and 384:
Chapter 11Design for TestThis chapt
Page 385 and 386:
Design for Test11.1.2 MBIST registe
Page 387 and 388:
Design for Testdseed[3:0]Write the
Page 389 and 390:
Design for TestNoteOnly arrays with
Page 391 and 392:
Design for Test• read and write l
Page 393 and 394:
Design for TestTable 11-10 Selectin
Page 395 and 396:
Design for TestTable 11-15 shows ho
Page 397 and 398:
Design for TestArrayFail[22:0] fail
Page 399 and 400:
Design for TestWhen testing the tag
Page 401 and 402:
Design for Test• Bitmap test mode
Page 403 and 404:
Design for TestCLKARESETnMBISTMODEM
Page 405 and 406:
Design for TestCLKARESETnMBISTMODEM
Page 407 and 408:
Design for TestTable 11-19 shows th
Page 409 and 410:
Design for TestNoteNormal MBIST tes
Page 411 and 412:
Design for TestRowmaxmax - 11 1 1 1
Page 413 and 414:
Design for Test2. R, W_, R_, incr.3
Page 415 and 416:
Design for TestRow3210Addressingdir
Page 417 and 418:
Design for TestRow32100 00 00 00 00
Page 419 and 420:
Design for Test11.2 ATPG test featu
Page 421 and 422:
Design for TestWBR in place of the
Page 423 and 424:
Design for TestOne methodology for
Page 425 and 426:
Chapter 12DebugThis chapter describ
Page 427 and 428:
Debug12.1.3 Debug targetThe debug t
Page 429 and 430:
DebugWhen execution of a monitor ta
Page 431 and 432:
Debug12.3 Debug register interfaceY
Page 433 and 434:
DebugTable 12-3 Debug memory-mapped
Page 435 and 436:
Debug12.3.6 Power domains and debug
Page 437 and 438:
DebugLocks permissionYou can lock t
Page 439 and 440:
DebugTable 12-6 shows the behavior
Page 441 and 442:
Debug12.4 Debug register descriptio
Page 443 and 444:
DebugTable 12-11 shows how the bit
Page 445 and 446:
DebugThe Debug Self Address Offset
Page 447 and 448:
DebugBits Field FunctionTable 12-14
Page 449 and 450:
Page 451 and 452:
DebugBits Field Function[9] - Reser
Page 453 and 454:
DebugThe DTR access mode can be one
Page 455 and 456:
DebugBitsFieldFunctionTable 12-16 s
Page 457 and 458:
DebugTable 12-17 Vector Catch Regis
Page 459 and 460:
Debug31 3 2 1 0ReservedNot write-th
Page 461 and 462:
Page 463 and 464:
Page 465 and 466:
DebugTable 12-23 Breakpoint Control
Page 467 and 468:
Debug12.4.16 Watchpoint Control Reg
Page 469 and 470:
DebugTable 12-26 Watchpoint Control
Page 471 and 472:
Page 473 and 474:
Page 475 and 476:
Page 477 and 478:
DebugNoteOn system reset, PRSR[1] r
Page 479 and 480:
DebugTable 12-32 Management registe
Page 481 and 482:
DebugFigure 12-19 shows the bit arr
Page 483 and 484:
Page 485 and 486:
Debug12.5.5 Integration Mode Contro
Page 487 and 488:
Debug12.5.8 Lock Access RegisterThe
Page 489 and 490:
Debug31 8 7 6 5 4 3 2 1 0ReservedSe
Page 491 and 492:
DebugTable 12-44 Peripheral Identif
Page 493 and 494:
DebugTable 12-50 shows how the bit
Page 495 and 496:
Debug12.6.2 Halting debug event•
Page 497 and 498:
Debug12.6.5 Watchpoint debug events
Page 499 and 500:
DebugNoteThe Data Abort handler che
Page 501 and 502:
DebugIf the debugged code is not ru
Page 503 and 504:
DebugTable 12-54 shows the read PC
Page 505 and 506:
Debug12.8.4 Writing to the CPSR in
Page 507 and 508:
DebugCoprocessor instructionsThe ru
Page 509 and 510:
DebugSVCSMCUndefinedThe processor i
Page 511 and 512:
Debug12.9 Cache debugThere are seve
Page 513 and 514:
Debug12.10 External debug interface
Page 515 and 516:
DebugDBGROMADDRThe DBGROMADDR signa
Page 517 and 518:
Debug4. Issue an Instruction Synchr
Page 519 and 520:
Debug12.11.1 Debug communications c
Page 521 and 522:
DebugDebugger access to the DCCA de
Page 523 and 524:
DebugTable 12-58 Values to write to
Page 525 and 526:
Debug}when 1:byte_address_select :=
Page 527 and 528:
DebugNoteIn Example 12-10 on page 1
Page 529 and 530:
Debug12.11.5 Debug state exitWhen e
Page 531 and 532:
DebugExample 12-15 Reading the PCRe
Page 533 and 534:
DebugExample 12-19 Checking for an
Page 535 and 536:
DebugExample 12-22 shows the sequen
Page 537 and 538:
Debug}dscr := ReadDebugRegister(34)
Page 539 and 540:
Debug}scr := (scr | 1);WriteCPReg(1
Page 541 and 542:
DebugIf on a power-down request fro
Page 543 and 544:
Debug; Step 2. Loop writing words f
Page 545 and 546:
Chapter 13NEON and VFP Programmer
Page 547 and 548:
NEON and VFP Programmer’s Modelre
Page 549 and 550:
NEON and VFP Programmer’s ModelS0
Page 551 and 552:
NEON and VFP Programmer’s ModelBa
Page 553 and 554:
NEON and VFP Programmer’s ModelFC
Page 555 and 556:
NEON and VFP Programmer’s ModelTa
Page 557 and 558:
Page 559 and 560:
NEON and VFP Programmer’s Model31
Page 561 and 562:
NEON and VFP Programmer’s ModelTh
Page 563 and 564:
Page 565 and 566:
Page 567 and 568:
Page 569 and 570:
NEON and VFP Programmer’s ModelCo
Page 571 and 572:
Chapter 14Embedded Trace MacrocellT
Page 573 and 574:
Embedded Trace Macrocell14.1.2 The
Page 575 and 576:
Embedded Trace Macrocell(DAP) throu
Page 577 and 578:
Embedded Trace MacrocellTable 14-1
Page 579 and 580:
Embedded Trace MacrocellRegister na
Page 581 and 582:
Page 583 and 584:
Page 585 and 586:
Page 587 and 588:
Embedded Trace MacrocellSee the ETM
Page 589 and 590:
Page 591 and 592:
Page 593 and 594:
Embedded Trace Macrocell14.5 Precis
Page 595 and 596:
Embedded Trace MacrocellThe followi
Page 597 and 598:
Embedded Trace Macrocellcomparator
Page 599 and 600:
Embedded Trace Macrocell14.8 Instru
Page 601 and 602:
Embedded Trace MacrocellWhen a WFI
Page 603 and 604:
Page 605 and 606:
Embedded Trace MacrocellYou can use
Page 607 and 608:
Chapter 15Cross Trigger InterfaceTh
Page 609 and 610:
Cross Trigger Interface• An input
Page 611 and 612:
Cross Trigger Interface15.1.2 The c
Page 613 and 614:
Cross Trigger InterfaceTable 15-2 T
Page 615 and 616:
Cross Trigger Interface15.4 About t
Page 617 and 618:
Cross Trigger InterfaceTable 15-3 C
Page 619 and 620:
Cross Trigger Interface15.6 CTI reg
Page 621 and 622:
Cross Trigger InterfaceNoteThe CTII
Page 623 and 624:
Cross Trigger InterfaceBits Field F
Page 625 and 626:
Cross Trigger Interface15.6.9 CTI T
Page 627 and 628:
Cross Trigger InterfaceTable 15-14
Page 629 and 630:
Page 631 and 632:
Page 633 and 634:
Cross Trigger Interface15.7.4 ITTRI
Page 635 and 636:
Page 637 and 638:
Cross Trigger Interface15.8.3 Devic
Page 639 and 640:
Cross Trigger InterfaceActual Compo
Page 641 and 642:
Chapter 16Instruction Cycle TimingT
Page 643 and 644:
Instruction Cycle Timing16.2 Instru
Page 645 and 646:
Instruction Cycle Timingis availabl
Page 647 and 648:
Instruction Cycle TimingTable 16-4
Page 649 and 650:
Instruction Cycle Timing16.2.7 Stat
Page 651 and 652:
Instruction Cycle TimingThe number
Page 653 and 654:
Instruction Cycle Timing16.3 Dual-i
Page 655 and 656:
Instruction Cycle TimingReplayevent
Page 657 and 658:
Instruction Cycle TimingPredicting
Page 659 and 660:
Instruction Cycle TimingUsing MCR i
Page 661 and 662:
Instruction Cycle TimingExample 16-
Page 663 and 664:
Page 665 and 666:
Instruction Cycle Timing16.6.3 Adva
Page 667 and 668:
Page 669 and 670:
Instruction Cycle Timing16.6.5 Adva
Page 671 and 672:
Page 673 and 674:
Instruction Cycle TimingFor example
Page 675 and 676:
Page 677 and 678:
Page 679 and 680:
Page 681 and 682:
Instruction Cycle Timing16.7 VFP in
Page 683 and 684:
Page 685 and 686:
Instruction Cycle Timing16.7.2 VFP
Page 687 and 688:
Chapter 17AC CharacteristicsThis ch
Page 689 and 690:
AC CharacteristicsThe timing parame
Page 691 and 692:
AC CharacteristicsTable 17-2 Timing
Page 693 and 694:
AC Characteristics17.4 APB interfac
Page 695 and 696:
AC Characteristics17.5 L1 and L2 MB
Page 697 and 698:
AC Characteristics17.7 DFT interfac
Page 699 and 700:
AC Characteristicsb. Figure 10-6 on
Page 701 and 702:
Appendix ASignal DescriptionsThis a
Page 703 and 704:
Signal DescriptionsA.2 ATB interfac
Page 705 and 706:
Signal DescriptionsTable A-3 MBIST
Page 707 and 708:
Signal DescriptionsA.4 Preload engi
Page 709 and 710:
Signal DescriptionsTable A-6 APB in
Page 711 and 712:
Signal DescriptionsTable A-7 Miscel
Page 713 and 714:
Page 715 and 716:
Page 717 and 718:
Signal DescriptionsA.8 Miscellaneou
Page 719 and 720:
Appendix BInstruction MnemonicsThis
Page 721 and 722:
Instruction MnemonicsTable B-1 Adva
Page 723 and 724:
Instruction MnemonicsB.2 VFP data-p
Page 725 and 726:
GlossaryThis glossary describes som
Page 727 and 728:
GlossaryApplication Specific Integr
Page 729 and 730:
GlossaryRead ID capabilityThe maxim
Page 731 and 732:
GlossaryByte-invariantIn a byte-inv
Page 733 and 734:
GlossaryCAM includes comparison log
Page 735 and 736:
GlossaryDouble-precision valueConsi
Page 737 and 738:
Glossary• arithmetic operation re
Page 739 and 740:
GlossaryInvalidateJazelle architect
Page 741 and 742:
GlossaryPAPenaltyPower-on resetPref
Page 743 and 744:
GlossarySetSet-associative cacheSee
Page 745 and 746:
GlossaryTrapTrigger instructionAn e
Page 747 and 748:
GlossaryWrite-back (WB)Write buffer
show all

Cortex-A8 R2P2.pdf - ARM Information Center

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?