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 email@example.com, firstname.lastname@example.org and email@example.com. Please mark them "Letter to the Editor or "Email to the Editor" to indicate you are prepared for your correspondence to be published.
Micrel's 10 criteria for choosing a MEMS foundry
April 18, 2014
Micrel Inc. (San Jose, Calif.) has prepared an article that lays out the 10 criteria to help guide someone in the choice ...
Superconducting qbits made immune to quasiparticle energy loss
The Filter Wizard: Just add a transistor
Mobile display revenues soar, leaving TV behind
European organic PV project aims for material gains
Nanomaterial-packed cathode extends range of EV lithium-sulfur batteries
April 17, 2014
Researchers at the USA's Department of Energy Pacific Northwest National Laboratory have developed a metal organic framework ...
Wearable computing market on 78% CAGR through 2018
OLED TV shipment delays stall OLED material growth
BMW updates navigation via mobile radio connection
- USB 5V 2.5A Output, 42V Input Synchronous Buck with Cable Drop Compensation
- Measurement applications across multiple test platforms
- Supplying DC input power to string inverters
- Supplying DC input power for HEV testing
InterviewHeartbleed challenges the Internet of Thing
The Heartbleed security bug is a key example of the fundamental security challenge for the Internet of Things says Green Hills Software as it launches a new security group.
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, Arrow Electronics is giving away ten XMC1200 lighting application kits, worth 100 Euros each, for EETimes Europe's readers to win.
Each kit combines Infineon’s brightness and colour control XMC1200 CPU board to drive flicker free LED dimming and colour changing, together with a colour LED card and a white LED card.
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.