|
|
|
|
|
by bryanallen22
5533 days ago
|
|
It's worth noting that, until June 2006, Intel made their own ARM processors before selling the business to Marvell. They saw the conflict of interest between their ARM lines and their forthcoming Atom lines, and threw their weight behind the architecture that they controlled. ARM chips are also much less expensive than Intel is used to charging for it's silicon -- they wanted to keep their costly fabs churning on high margins products. This would effectively be a retreat from those ideals, and reduce them back to the role of another commoditized supplier of ARM processors -- something they had hoped to avoid by pushing x86 in the low power market. Porting processors between fabs is not easy. When Marvell made this transition in reverse, by buying the XScale ARM business from Intel, it took a long time to move from Intel's fab process to TSMC. |
|
You are correct that Intel sold part of their Xscale business to Marvell, but they also kept the Xscale storage processors.
http://edc.intel.com/Platforms/Previous/Processors/IOP/
All the generations of XScale are 32-bit ARMv5TE processors (ARMv5TE ISA without the FP instructions) manufactured with a 0.18 µm or 0.13 µm (as in IXP43x parts) process.
I think the reason for Intel selling off most of the Xscale business to Marvell is that Marvell has an architecture license, and ARM, Ltd probably didn't want to sell one to Intel.
Apple helped develop ARM, so it likely has a less expensive license than anyone else.
Given that Intel knows how to get an ARM5 into 0.13, getting a theoretic A6 into its 0.22 process is likely straight-forward.