On Mon, Apr 20, 2009 at 10:55 AM, Scott Wood <scottw...@freescale.com> wrote:

> No.  It is for software-directed memory-to-memory transfers (where
> "memory" can be main-memory, or the buffer of a device that doesn't do
> DMA itself).

It can also be used to transfer data to/from a single I/O register,
which is how ISA DMA is frequently used.

-- 
Timur Tabi
Linux kernel developer at Freescale
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