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Please take a look at the picture below.

enter image description here

You can see that Samsung integrates SATA 3 into the Exynos 5 Dual. So does that mean that smartphones which use Exynos 5 will be able to connect to hard drives or optical drives by using SATA interface ? Do I misunderstand anything ?

And also, does DMA in the figure ("32x DMA") refer to "Direct Memory Accessing" ?

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So does that mean that smartphones which use Exynos 5 will be able to connect to hard drives or optical drives by using SATA interface ?

In theory, yes.

In practice, the SATA interface will most likely never be exposed. If it is not used internally by the phone or tablet, it will probably be unavailable — if you were hoping for a phone with an eSATA port, sorry, but that's very unlikely to happen. (The connector would hardly even fit on most modern phones.)

And also, does DMA in the figure ("32x DMA") refer to "Direct Memory Accessing" ?

"Direct Memory Access", but yes. Specifically, it means that the CPU can manage up to 32 concurrent DMA transfers to/from peripherals at a time.

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  • \$\begingroup\$ Thank you for your answer. So what are some function of SATA in the internal of the smartphone ? I mean why do they even integrate SATA into the phone at the first place ? \$\endgroup\$ – laituan245 Apr 2 '14 at 5:58
  • \$\begingroup\$ A smartphone or smartphone-like tablet is unlikely to use SATA for anything (even if the processor supports it). On the other hand a TV set top box is far more likely to want a hard drive. \$\endgroup\$ – Peter Green Dec 23 '15 at 15:06

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