Email: Three ARM processor cores per iPhone
January 15, 2007 //
A reader writes to say that the Apple iPhone includes three ARM processor cores
I read your article "How many ARM cores does it take to make an iPhone?" and thought I might be able to help a bit. I cover ARM as an equity analyst for an investment bank in London.
From my checks it is highly likely that the iPhone uses the following components: applications processor, Samsung, running either an ARM10 or an ARM11; WiFi, Marvell, chip based on an ARM9 or an ARM7 but I think it is an ARM9; Bluetooth, CSR, does not run on ARM; GPRS/EDGE baseband, Infineon, runs on an ARM926.
In total this would be three ARM cores. I hope this helps.
P.S. The Broadcom touchscreen controller chip is not based on an Alphamosaic processor core but was designed from scratch by Broadcom.
Thanks to Didier for his processor core assessment. I note that the CSR Bluetooth, likely runs on the XAP processor which would make a Cambridge processor count of four versus a California processor count of one for the Broadcom processor. However, Broadcom also had a Cambridge processor design team last time I checked, so it could be five-zip to Cambridge.
If anyone has a different ARM/Cambridge/California processor core count based on any chips Didier or I may not have included, or information on where the Broadcom touchscreen controller was designed, he or she is welcome to get in touch.
EE Times welcomes letters and emails but reserves the right to edit them for length and relevance. Please send them to firstname.lastname@example.org, email@example.com and firstname.lastname@example.org. Please mark them "Letter to the Editor or "Email to the Editor" to indicate you are prepared for your correspondence to be published.
Big data sets drones to fly
March 27, 2015
For the last seven years, visiting professor at the University of Maryland Institute for Advanced Computer Studies Dr. Tom ...
CE marking misconceptions
Fraunhofer launches test centre for high-voltage batteries
Auto chip market: upheaval ahead
USD 10,000 worth of components offered in Digi-Key/Silicon Labs IoT contest
Richard Feynman and homomorphic filtering
March 26, 2015
Dennis Feucht discusses his role in preserving the sound of the bongo-playing physicist's voice in audio files that are available ...
Giant spider-bot needs your inspiration
Smart cities will see it all
ST drops in 2014 MEMS ranking, says IHS
- Intelligent Over Temperature Protection for LED Lighting Applications
- Intel helps to Turbocharge Infotainment Systems Designs
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Freescale is giving away 5 RIoTboards, worth 74 dollars each, for EETimes Europe's readers to win.
Designed to run Android operating systems efficiently or to run under Linux, the board is based on the Freescale i.MX 6Solo processor; using the ARM Cortex-A9 architecture.
The RIoTboard platform also includes a rich set of peripherals including a 10M/100M/Gb Ethernet port, 1...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.