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<PRE>76543210&nbsp; Bits indicate which DMA transfer(s) to initiate
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1=Transfer, 0=Do not transfer)</PRE>
After setting up a DMA transfer, a 1 should be written to the bit corresponding
to the channel you want to use for the transfer.&nbsp; After the 1 is written,
the CPU is paused while the DMA transfer takes place; each byte transferred
takes one clock cycle.&nbsp; Note that a DMA and HDMA transfer cannot be
done on the same channel: if a 