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SPRU755B
Repeat = 1: When DMA channel is in autoinitialization mode and end_prog
= 0, once the current transfer is complete, the channel automatically rein-
itializes itself and starts a new transfer.
Repeat = 0: When DMA channel is in autoinitialization mode and end_prog
= 0, once the current transfer is complete, the channel automatically rein-
itializes itself and starts a new transfer.
Note that even if REPEAT bit is only supported in OMAP3.0/3.1 compat-
ible mode, its behavior with respect to END_PROG bit is slightly different
than in OMAP3.1.
OMAP3_1_COMPATIBLE_DISABLE:
-
compatibility control
This bit is used to set the DMA logical channel programming model to be
used. By default, all DMA logical channels are in omap_3.1 compatible
mode.
omap3_1_compatible_disable =
OMAP_3.0/3.1 compatible mode.
omap3_1_compatible_disable = 1: The logical channel is in OMAP_3.2
compatible mode.
END_PROG: End of programming status bit
-
Only supported in OMAP 3.0/1 compatible mode. In OMAP 3.2 mode,
when bit OMAP3_1_COMPATIBLE_DISABLE = 1, this bit must always be
set to 0.
End_prog = 1: When DMA channel is in autoinitialization mode, it allows
the channel to reinitialize itself after the current DMA channel transfer has
been finished.
End_prog = 0: When DMA channel is in autoinitialization mode and RE-
PEAT bit is 0, DMA delays the channel autoinitialization until end_prog bit
is set to 1 after the current DMA channel transfer has been finished.
Note that even if END_PROG bit is only supported in OMAP3.0/3.1 com-
patible mode, its behavior with respect to REPEAT bit is slightly different
than in OMAP3.1.
SRC_AMODE: Source addressing mode
-
This field is used to choose the addressing mode on the source port of a
channel.
src_amode = 00: Constant address
src_amode = 01: Post-incremented address
src_amode = 10: Single index (element index)
src_amode = 11: Double index (element index and frame index)
OMAP
0:
The
logical
Direct Memory Access (DMA) Support
System DMA
3.0/3.1
channel
channel
is
in
97
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