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lowRISC

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668: 27: 202:, which has been taped out multiple times. Ibex is used in the OpenTitan chip. Development on Ibex started in 2015 under the name "Zero-riscy" and "Micro-riscy" at the ETH Zurich and University of Bologna, where it was part of the PULP platform. In December 2018 lowRISC took over the development. Luca Benini of the ETH Zurich sits on lowRISC' board. 217:
design. A first version preview release of the source code was made available in April 2015. Since then features were added, such as support for tagged memory and "minion cores", small CPU cores which are dedicated to I/O tasks. The latest version 0.6 was released in November 2018, and is available
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OpenTitan is the first open source silicon Root of Trust (RoT) project. It is designed to be integrated into data center servers, storage devices, peripherals and other hardware. OpenTitan is under the stewardship of lowRISC and collaboratively developed by
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Since 2018 lowRISC has been focusing on collaborative engineering with partner organizations. In 2019 the OpenTitan project, stewarded by lowRISC, was announced.
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in 2014 by Alex Bradbury, Robert Mullins, and Gavin Ferris with the goal of creating a fully open source
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to develop and maintain open source silicon designs and tools. lowRISC is active in
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The lowRISC prototype 64-bit SoC design is an open source Linux-capable 64-bit
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Additionally, Mark Hayter of Google sits on the board as an observer.
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hardware and software development and stewards the OpenTitan project.
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In 2015 lowRISC became one of the founding members of the
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Not-for-profit company headquartered in Cambridge, UK
96: 88: 74: 66: 43: 33: 230:lowRISC initiated and led the upstreaming of the 195:Ibex is an embedded open source 32-bit in-order 329: 327: 325: 308:RISC-V Foundation (today: RISC-V International) 237:backend, where Alex Bradbury is code owner. 8: 176:. The OpenTitan source code is available on 19: 549:"The RISC-V LLVM backend in Clang/LLVM 9.0" 70:Gavin Ferris, Alex Bradbury, Robert Mullins 666: 429:"Ibex: An embedded 32 bit RISC-V CPU core" 25: 18: 689:Non-profit organisations based in England 497:"Overview of the minion infrastructure" 471:"lowRISC tagged memory preview release" 321: 7: 600:"LowRISC SoC - 1st RISC-V Workshop" 574:"Free Core, Some Assembly Required" 386:"Open source silicon Root of Trust" 14: 303:and low-cost development board. 522:"lowRISC 0-6 milestone release" 450:"Ibex Reference Guide: History" 218:to download and try out on an 1: 642:Bradbury, Alex (2019-11-05). 359:Anderson, Tim (5 Nov 2019). 292:lowRISC was spun out of the 260:Gavin Ferris (CEO, lowRISC) 206:Prototype 64-bit SoC design 705: 38:Community Interest Company 128:collaborative engineering 24: 294:University of Cambridge 265:University of Cambridge 280:Cyrus Stoller (Google) 120:not-for-profit company 180:, released under the 49:; 9 years ago 47:October 20, 2014 684:Open-source hardware 404:"OpenTitan partners" 257:Will Drewry (Google) 277:, Fraunhofer AISEC) 254:(Independent Chair) 166:G+D Mobile Security 21: 618:"Founding Members" 246:Board of directors 122:headquartered in 110: 109: 696: 670: 665: 664: 662:Official website 648: 647: 639: 633: 632: 630: 628: 614: 608: 607: 596: 590: 589: 587: 585: 570: 564: 563: 561: 559: 547:Bradbury, Alex. 544: 538: 537: 535: 533: 518: 512: 511: 509: 507: 493: 487: 486: 484: 482: 477:. April 13, 2015 467: 461: 460: 458: 456: 446: 440: 439: 437: 435: 425: 419: 418: 416: 414: 400: 394: 393: 382: 376: 375: 373: 371: 356: 350: 349: 347: 345: 331: 263:Robert Mullins ( 185:Apache 2 license 106: 103: 57: 55: 50: 29: 22: 704: 703: 699: 698: 697: 695: 694: 693: 674: 673: 660: 659: 656: 651: 641: 640: 636: 626: 624: 616: 615: 611: 598: 597: 593: 583: 581: 572: 571: 567: 557: 555: 546: 545: 541: 531: 529: 520: 519: 515: 505: 503: 495: 494: 490: 480: 478: 469: 468: 464: 454: 452: 448: 447: 443: 433: 431: 427: 426: 422: 412: 410: 402: 401: 397: 384: 383: 379: 369: 367: 358: 357: 353: 343: 341: 335:"About lowRISC" 333: 332: 323: 319: 290: 248: 243: 228: 208: 193: 174:Western Digital 149: 144: 100: 92:Ibex, OpenTitan 84: 80: 53: 51: 48: 17: 12: 11: 5: 702: 700: 692: 691: 686: 676: 675: 672: 671: 655: 654:External links 652: 650: 649: 634: 609: 591: 565: 539: 513: 488: 462: 441: 420: 395: 377: 351: 320: 318: 315: 289: 286: 282: 281: 278: 271:Claudia Eckert 268: 261: 258: 255: 247: 244: 242: 239: 227: 226:Other projects 224: 207: 204: 192: 189: 148: 145: 143: 140: 126:, UK. It uses 108: 107: 98: 94: 93: 90: 86: 85: 83:United Kingdom 82: 78: 76: 72: 71: 68: 64: 63: 45: 41: 40: 35: 31: 30: 20:lowRISC C.I.C. 15: 13: 10: 9: 6: 4: 3: 2: 701: 690: 687: 685: 682: 681: 679: 669: 663: 658: 657: 653: 645: 638: 635: 623: 619: 613: 610: 605: 601: 595: 592: 579: 575: 569: 566: 554: 550: 543: 540: 527: 523: 517: 514: 502: 498: 492: 489: 476: 472: 466: 463: 451: 445: 442: 430: 424: 421: 409: 408:opentitan.org 405: 399: 396: 391: 390:opentitan.org 387: 381: 378: 366: 362: 355: 352: 340: 336: 330: 328: 326: 322: 316: 314: 311: 309: 304: 302: 298: 295: 287: 285: 279: 276: 272: 269: 266: 262: 259: 256: 253: 250: 249: 245: 240: 238: 236: 233: 225: 223: 221: 216: 213: 205: 203: 201: 198: 191:Ibex CPU core 190: 188: 186: 183: 179: 175: 171: 167: 163: 159: 155: 146: 141: 139: 137: 133: 129: 125: 121: 117: 114: 105: 99: 95: 91: 87: 77: 73: 69: 65: 61: 46: 42: 39: 36: 32: 28: 23: 637: 625:. Retrieved 621: 612: 603: 594: 582:. Retrieved 580:. 2016-01-07 577: 568: 556:. 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Retrieved 338: 312: 305: 297:Computer Lab 291: 283: 229: 209: 194: 150: 112: 111: 75:Headquarters 34:Company type 553:lowrisc.org 526:lowrisc.org 501:lowrisc.org 475:lowrisc.org 339:lowrisc.org 252:Andy Hopper 136:open source 678:Categories 317:References 241:Governance 182:permissive 158:ETH Zurich 54:2014-10-20 622:riscv.org 275:TU Munich 147:OpenTitan 134:-related 124:Cambridge 79:Cambridge 60:Cambridge 627:24 March 584:24 March 558:24 March 532:24 March 506:24 March 481:24 March 455:24 March 434:24 March 413:24 March 370:24 March 344:24 March 200:CPU core 142:Projects 89:Products 67:Founders 604:YouTube 578:EETimes 288:History 170:Seagate 162:Nuvoton 113:lowRISC 102:lowrisc 97:Website 52: ( 44:Founded 232:RISC-V 212:RISC-V 197:RISC-V 178:GitHub 172:, and 154:Google 132:RISC-V 116:C.I.C. 118:is a 629:2021 586:2021 560:2021 534:2021 508:2021 483:2021 457:2021 436:2021 415:2021 372:2021 346:2021 235:LLVM 220:FPGA 104:.org 62:, UK 301:SoC 215:SoC 58:in 680:: 620:. 602:. 576:. 551:. 524:. 499:. 473:. 406:. 388:. 363:. 337:. 324:^ 310:. 222:. 187:. 168:, 164:, 160:, 156:, 81:, 646:. 631:. 606:. 588:. 562:. 536:. 510:. 485:. 459:. 438:. 417:. 392:. 374:. 348:. 273:( 267:) 56:)

Index

Red icon of circuit board traces next to the text lowRISC
Community Interest Company
Cambridge
lowrisc.org
C.I.C.
not-for-profit company
Cambridge
collaborative engineering
RISC-V
open source
Google
ETH Zurich
Nuvoton
G+D Mobile Security
Seagate
Western Digital
GitHub
permissive
Apache 2 license
RISC-V
CPU core
RISC-V
SoC
FPGA
RISC-V
LLVM
Andy Hopper
University of Cambridge
Claudia Eckert
TU Munich

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