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PortalPlayer

PortalPlayer, Inc.
IndustrySemiconductors
Founded1999; 26 years ago (1999)
Defunct2007
FateAcquired by Nvidia
Headquarters
United States Edit this on Wikidata
Area served
Worldwide
ProductsSoCs

PortalPlayer, Inc., founded in 1999, was a fabless semiconductor company that supplied system-on-a-chip semiconductors, firmware and software for personal media players. The company handled semiconductor design and firmware development, while subcontracting the actual semiconductor manufacturing to merchant foundries.

It gained recognition as the company with which Apple contracted for development of the original iPod.[1][2] The company went public with an IPO in November 2004 and traded on the NASDAQ under ticker symbol PLAY.[3] Sales to Apple grew to 90% of the company's gross revenue, which ultimately hurt the company when Apple switched media processor chip vendors in its iPod lines.[4]

On January 5, 2007, Nvidia Corporation announced that it had acquired PortalPlayer, Inc. for about $357 million.[5][6]

Products

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PortalPlayer 5002

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Dual ARM7TDMI cores with shared SRAM (3x 32KB banks). Errata in memory controller leads to halved data cache performance but fast SRAM. As the ARM7TDMI does not support cache coherency, individual ARM7TDMI cores do not have coherent views of DRAM. Custom logic is used to introduce coherency into the SRAM.

Used by the following devices:

PortalPlayer 5003

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System-on-a-chip containing two ARM7 CPU cores, each running at up to 90 MHz. Fixes 5002 cache bug greatly improving performance of DRAM.

Used by the following devices:

PortalPlayer 5020

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System-on-a-chip containing two ARM CPU cores, each running at 75 MHz. Expanded SRAM to 4 banks (128KB) using a crossbar style switch.

Used by the following devices:

PortalPlayer 5021C-TDF

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Used by the following devices:

PortalPlayer 5022

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SRAM is no longer partitioned into fast and slower banks; all have uniform access speed.

Used by the following devices:

PortalPlayer 5024

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PP5022 with integrated Austria Microsystems AS3514 DAC and power management chip.

Used by the following devices:

PortalPlayer APX

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PortalPlayer's application processor series.

Used by:

References

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  1. ^ Inside Look at Birth of the IPod, by Leander Kahney, wired.com, 07/21/2004
  2. ^ Inside the Apple iPod Design Triumph Archived 2010-10-04 at the Library of Congress Web Archives, by Erik Sherman, Electronics Design Chain magazine, Summer 2002 issue
  3. ^ PortalPlayer IPO plays Friday, by Steve Gelsi, CBS.MarketWatch.com, 11/19/2004
  4. ^ PortalPlayer dealt setback at Apple, by Mark LaPedus, EE Times, 4/19/2006
  5. ^ "Nvidia acquires PortalPlayer (Press release)". Nvidia. January 5, 2007. Archived from the original on 2007-09-29. Retrieved 2020-12-09.
  6. ^ "Nvidia to Acquire IPod Chip Maker PortalPlayer Inc". Wall Street Journal. November 7, 2006.
  7. ^ "PP5002 - WikiPodLinux". Archived from the original on 2005-08-29.
  8. ^ "PortalPlayer < Main < Wiki".
  9. ^ "OGG on iPod: Why the iPod May Not Have the Horsepower for OGG - Gizmodo". Archived from the original on 2006-08-13.
  10. ^ "PP5020 - WikiPodLinux". Archived from the original on 2005-08-28.
  11. ^ "PortalPlayer < Main < Wiki".
  12. ^ "Virgin Electronics". Archived from the original on 2006-01-13.
  13. ^ "IPod nano". 12 September 2005.
  14. ^ "PP5022 - WikiPodLinux". Archived from the original on 2005-08-30.
  15. ^ "PortalPlayer < Main < Wiki".
  16. ^ "GoGearHDD6330 < Main < Wiki".
  17. ^ "SanDisk Sansa e200 Series Review". Archived from the original on 2007-01-13.
  18. ^ "GoGearSA9200info < Main < Wiki".
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