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author | bnewbold <bnewbold@alum.mit.edu> | 2012-02-09 04:33:03 -0500 |
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committer | bnewbold <bnewbold@alum.mit.edu> | 2012-02-09 04:35:22 -0500 |
commit | 03d57c2b8c35456064e9a450638220f2fe076be5 (patch) | |
tree | 4b657eaaab2ae637a700f92e09cf66735615f51d /hardware/soc.page | |
parent | 8959d9c34d24911047717ee7150909a0819a06c9 (diff) | |
download | rooter_wiki-03d57c2b8c35456064e9a450638220f2fe076be5.tar.gz rooter_wiki-03d57c2b8c35456064e9a450638220f2fe076be5.zip |
lots of partial info
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diff --git a/hardware/soc.page b/hardware/soc.page new file mode 100644 index 0000000..3852b58 --- /dev/null +++ b/hardware/soc.page @@ -0,0 +1,52 @@ + +# Big Picture + +*(circa Q1 2012)* + +The generic term "System on a Chip" refers to the fact that the CPU and many +"peripherals" (USB, ethernet, memory controller, GPU) are integraded into a +single package instead of being distributed across a motherboard via a +northbridge and southbridge. There still needs to be external analog and +digital circuitry for most "connectivity" interfaces like USB or ethernet to +provide level conversion, isolation, etc. Notably, RAM is not usually +integraded into the chip, and the large parallel bus to the RAM chips must be +routed very carefully. Some newer chips (popular circa 2010?) include "package +on package" technology where the RAM chip is right on top of the SoC to make +routing easier (eg, iPhones, RaspberryPI). + +The establishment players for mobile ARM SoCs are TI (OMAP), Qualcomm +([http://en.wikipedia.org/wiki/Snapdragon_(System_on_Chip)](Snapdragon), not +regular ARM), Samsung ([http://en.wikipedia.org/wiki/Exynos](Exynos))), Broadcom (Armada, Armada XP, ) + +The establishment players for MIPS SoCs are Broadcom and Marvell (Kirkwood). + + +# ARM + +Marvell Armada XP: MV78260 + +(samples available from nu horizons?) +<http://www.nuhorizons.com/featuredproducts/portal/samples/January_2012.asp> + +(apple experimenting with these chip?) +<http://arstechnica.com/apple/news/2011/09/support-for-quad-core-arm-cpu-shows-up-in-apples-xcode-but-why.ars> + +Calxeda "EnergyCore" + +# MIPS + +Ingenic jz4760B + +# x86 + +# PowerPC + +AppliedMicro APM86290 + +# Other + +Marvell Avanta ethernet switch SoCs: http://www.marvell.com/broadband/ + +Marvell Prestera EX/MX enterprise packet processors + +Freescale QorIQ DPAA |